MadModder
Gallery, Projects and General => Project Logs => Topic started by: Brass_Machine on October 26, 2016, 12:59:27 AM
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Hi all,
For those of us in the colder part of the world, we all know, winter is coming... That means that it is time to get the snowblower tuned up.
Back story: A few years ago, when I moved into the new house, I looked at the drive and figured I could just shovel it myself... "oh, it will be a good workout!" Yeah right. The driveway is about 350 to 400 ft. We had a brutal winter that year. A lot of snow... after the first snow fall and subsequent shoveling, I immediately went on Craigslist and found a snowblower. It is an Ariens ST420. A 2 stage 4 HP blower from the late seventies. Ad said, it ran last year but would not start so instead of fixing it, the owner bought a new one. $70. So I went and looked at it. Gave a tug on the starter and while it turned over, it would not start. So I offered the guy $25 for it and loaded it into my truck.
Got it home, cleaned it the best I could (it snowed the next day) and fire some starting fluid into the carb . It fired right up. Used it that winter by sarting it every time with starter fluid. The next winter I went to order a carb rebuild kit for it an found a new carb was only a few dollars more. Ordered it and put it on and had an easier time using it. This past winter, the motor seemed to have less power. Thankfully, we didn't get anywhere near as much snow, but it kept stretching belts because it did not have the power to move the snow etc...
This year, I have decided to give it a new heart. I am replacing the original 4 HP engine with a 6.5 HP Honda clone. The replacement engine has good reviews and even has a go kart racing culture popping up around it. Apparently, with some hop up parts, I can get 27 HP out of it :headbang:
So here is the start. The blower in it's current state (I had already started dismantling it):
(http://journeyofbrass.com/Gallery/albums/userpics/10001/1025161540_resized2.jpg)
This is the 6.5HP Predator engine I am putting in:
(http://journeyofbrass.com/Gallery/albums/userpics/10001/1025161724_resized.jpg)
No adjusting or adapter plates required. It fits perfectly into place. Almost like it was meant to be there.
(http://journeyofbrass.com/Gallery/albums/userpics/10001/1025161815_resized.jpg)
Comparing the engines output shafts, they are the same diameter and located about the same height from the bottom of the engine:
(http://journeyofbrass.com/Gallery/albums/userpics/10001/1025161725_resized.jpg)
The crank pulley even fits nice!
(http://journeyofbrass.com/Gallery/albums/userpics/10001/1025161739_resized.jpg)
But now we see the first problem. Anyone see it?
(http://journeyofbrass.com/Gallery/albums/userpics/10001/1025161725a_resized.jpg)
Yup, the eagle eyed will see that the old engine has 2 output shafts, not just one. The old engine has a pulley that comes off the cam that rotates in the opposite direction from the crank output shaft.
While I can get a pulley from a new model that is essentially a double pulley, it does require an adapter sleeve (3/4 to 1"). Not really a problem to buy (going to order it tomorrow) The real issue is that pulley that spins in the opposite direction? It drives the wheels. So if I don't do anything, I will have 1 forward speed and 4 reverse speeds! :doh:
So now I have to figure out how the drive train works. The belt drives a spinning disc, when you pull the drive lever, it pops up and makes connection to a dirve wheel which in turn drives the wheels. When you select a speed, there is a U shaped fork that slides the wheel to a different position above the disc. The closer it is to the center, the faster it spins, driving the wheels at a higher speed. At its slowest speed, it is towards the outside of the disc thus spinning slower. Move it into reverse and it goes past the center of the disc and spins in the opposite direction.
I pulled the contact wheel and shaft to have a closer look.
(http://journeyofbrass.com/Gallery/albums/userpics/10001/1025161757_resized.jpg)
I forgot to take a picture of it in the blower chassis. You will have to imagine a spinning disc (much like a record, remember those?) perpendicular to the big wheel.
Took it apart to get a better understanding:
(http://journeyofbrass.com/Gallery/albums/userpics/10001/1025161801_resized.jpg)
At first, I thought I could just reverse everything. Nope. Can't do that. The big drive gear (not pictured) will not fit on the other side. Too much in the way. I have to either come up with a way to spin the drive platter (for lack of a better term) in the opposite direction or add an intermediate gear to spin the wheels in the opposite direction.
Hmmm. Another idea might be to move that drive wheel down the shaft so it would work in reverse? :scratch: :smart: There are some things in the way, I might not get full movement. Maybe go from 4 forward speeds to only 2... I only use 2 speeds anyway. The lower ones... if i push the drive wheel past the center of the platter, I would only get the higher speeds. I think I have that right.
I will try to get pictures of the guts to explain what I mean tomorrow.
Until then I will be :scratch: trying to figure this out.
Eric
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Eric,
Can you not make a flat gearbox that bolts on round the main shaft and has a 2:1 ratio presenting a shaft where your missing one is and running at the correct speed and direction?
I imagine a sort of sandwich arrangement, two flat plates and a spacer a little fatter than the gears, suitable bearings for the new shaft, and filled with a little oil.
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I don't know these machines , is there room to put a twist in the drive belt to the wheels ?
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I might be misunderstanding your description but it sounds as though the spinning disc axle is vertical and the camshaft is horizontal. How is the drive turned through 90 degrees? Is there an opportunity there?
Russell
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I might be misunderstanding your description but it sounds as though the spinning disc axle is vertical and the camshaft is horizontal. How is the drive turned through 90 degrees? Is there an opportunity there?
Russell
Hi Russell
I will get some pictures today... a picture is worth a thousand words :thumbup: it will explain much better than I can.
Eric
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I don't know these machines , is there room to put a twist in the drive belt to the wheels ?
I have thought about that one. Wouldn't there be wear from the belt rubbing against itself?
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Eric,
Can you not make a flat gearbox that bolts on round the main shaft and has a 2:1 ratio presenting a shaft where your missing one is and running at the correct speed and direction?
I imagine a sort of sandwich arrangement, two flat plates and a spacer a little fatter than the gears, suitable bearings for the new shaft, and filled with a little oil.
I think this one is possible. The new engine does have the 2 extra bolt holes at the top... I am having a hard time seeing in my mind what you are describing. I think I know but I am not sure...
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Eric, a quick C o Cad sketch
The cam shaft goes half the speed of the crank shaft so you need a pair of gears with a 2:1 tooth ratio. Drill the rear plate to pick up the mounting hole around the existing shaft. Gasket paper between the plates and drill an oil filling hole somewhere
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Here is a view looking from the bottom up.
(http://journeyofbrass.com/Gallery/albums/userpics/10001/1026160946_resized.jpg)
I left of the gear that drives the wheels on the left. I believe the drive wheel is positioned between 1st and 2nd. I believe I have it wrong... the closer the drive wheel is to the center of the platter, it spins the wheels slower. The closer to the edge, the wheels spin faster.
If I adjust the drive wheel so it contacts the other side. I will get 1st and 2nd plus 1 reverse speed.Unfortunately, it cannot go any further left due to things being in the way.
(http://journeyofbrass.com/Gallery/albums/userpics/10001/1026160947a_resized.jpg)
Eric
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Eric, a quick C o Cad sketch
The cam shaft goes half the speed of the crank shaft so you need a pair of gears with a 2:1 tooth ratio. Drill the rear plate to pick up the mounting hole around the existing shaft. Gasket paper between the plates and drill an oil filling hole somewhere
That looks like it could be a good solution. I would just have to find gears that would work as I am not setup to cut my own gears.
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Eric, a quick C o Cad sketch
The cam shaft goes half the speed of the crank shaft so you need a pair of gears with a 2:1 tooth ratio. Drill the rear plate to pick up the mounting hole around the existing shaft. Gasket paper between the plates and drill an oil filling hole somewhere
Would the timing gears in the timing case of the old engine fit the bill? They are up to the job on the old engine they should be fine in Andrew's suggested gearbox.....OZ.
That looks like it could be a good solution. I would just have to find gears that would work as I am not setup to cut my own gears.
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Thanks for the extra picture. That helps.
Could you add an extra cross shaft carrying the gear that engages with the large gear and fit two gears at the other end of the shafts to reverse the direction?
Or would it be possible to replace the large gears with a chain drive - although you'd probably need an intermediate shaft and sprockets somewhere to get the ratio right.
Or raise the engine up and put a couple of shafts below it and deal with reversal there.
Incidentally there ought to be a couple of suitable gears in the old engine - but that would mean you couldn't go back.
Russell
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Shame to spoil a perfectly good engine though - stock gears are cheap enough
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Shame to spoil a perfectly good engine though - stock gears are cheap enough
Yup. Gonna keep the old engine for a bit. I will use your idea of a flat gear box. Need to design it and find gears that work...
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What about turning the drive hub around on the shaft? It would mean relocating the actuating fork though. Is that feasible do you think?
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Hi,
You will need to incorporate a 2;1 reduction as the drive from the camshaft was at 1/2 the crankshaft speed
So moving the drive disc across the the other side will work, but it will be twice the speed it was with the old engine :Doh:
"Neracar" 2 wheelers from the 1920's used a similar drive with the drive roller running against the engine flywheel !!!!!
I use "kevlar" belts on my ride on mower, much less prone to wear /slippage, I dont believe belts stretch much they wear on the sides and sink further into the pulleys ???
John
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What about turning the drive hub around on the shaft? It would mean relocating the actuating fork though. Is that feasible do you think?
That was my initial thought and perhaps the easiest fix. Problem is, there is stuff in the way and I would not get full movement (so not all the forward speeds) plus the drive pulley spins at 1/2 RPM... spinning it directly off crank would double all the speeds.
Eric
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So, I am searching for gears.
Having the worst time. I cannot find keyed gears that have the same pitch angle for both 1/2" and 3/4" shafts. the crank shat is 3/4" while the pulley that drives the wheels (originally off the cam) is only 1/2".
The only thing I have found so far is some gears that can be bored. No keyway though... Which is fine for the 1/2 drive shaft, I need a keyway for the 3/4 shaft.
Hmmmm
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Come on Eric, we're mad modders, you can slot a key way on your lathe, or if your lathe is too skimpy for that, I'm certain one of our fellow members can do it for you.
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If I adjust the drive wheel so it contacts the other side. I will get 1st and 2nd plus 1 reverse speed.Unfortunately, it cannot go any further left due to things being in the way.
I think I would give this a try first. As this is a continuously variable transmission 1st, 2nd etc are just positions so by holding the gear lever in position 1/2, 1, 1 1/2 and 2 should give you 4 speeds. Because the disc is running at double speed they should be equivalent to 1,2,3 and 4.
It may not work because the higher disc speed may cause slipping but I would have thought it was worth a try.
Russell
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Shame to spoil a perfectly good engine though - stock gears are cheap enough
Yup. Gonna keep the old engine for a bit. I will use your idea of a flat gear box. Need to design it and find gears that work...
I misunderstood your earlier posts and thought the old motor was a scrapper. I also would feel hard of dismantling a motor for the gears if it was still a runner.
Looking back to where the suggestion was taking us why not find another engine that is a scrapper from a mower or similar and whip the gears out of that.
Thinking a little further along these lines,if the gears,crankcase and the front cover could be acquired from a knackered Honda model that yours is the clone of then the crankshaft is the same diameter and you have the extra front cover with the same bolt hole pattern as your new engine to make the front cover for your gearbox. You only need to make a back plate if you slice an end section of the scrappers crankcase......OZ
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Come on Eric, we're mad modders, you can slot a key way on your lathe, or if your lathe is too skimpy for that, I'm certain one of our fellow members can do it for you.
Yeah yeah. I don't know if my tiny lathe can handle it, but I am going to try. I have never slotted a key before, so this will be new territory for me. I figure if I can't get it cut, I will just cut the key down (So I can still use it for the impeller pulley) and just use a set screw or two to hold it in place. Going to order the shaft and two gears today.
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A perfectly acceptable keyway can be made by:
a/ turn a plug to be a tight fit in the bore of the gear
b/ drill a hole slightly smaller than the width of the keyway so half is in the plug and half in the gear
c/ remove plug and hand file embryo keyway out to full size using a four square file
It actually doesn't take long as the drilled hole removes a lot of the material and acts as a guide
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Thanks Andrew! I will give that a shot. Always willing to learn something new.
I ordered the 2 gears. Got a 24 and 48 tooth gear, 6" piece of 1/2" drive shaft and a couple of bearings. Should be here tomorrow. I need to get this done and working, I think, fairly soon. We already got freezing rain this morning! :doh:
Not sure if I will have time to work on it this weekend. I might have some time to work on the design of the mount. Do it up on cad... have to figure out where to have the pulley placed so I don't need to buy a different length belt.
Eric
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Dumped some the rusty pulleys and the drive shaft into a vat of Apple Cider Vinegar to de-rustify them.
Just waiting on parts.
Eric
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Is that a common drive mechanism for snow blowers? It's amazingly simple, but intuitively I'd think it would slip in use.
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Is that a common drive mechanism for snow blowers? It's amazingly simple, but intuitively I'd think it would slip in use.
Not sure how common it is now. This machine is from the 70s so things may have improved. As far as slipping? Haven't really had that problem. This blower got heavy use two years in a row. We had a lot of snow. So it seams to work well.
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That was thoughtful of Honda to put that nice four bolt flange pattern onto the nose housing. What speeds do you actually use in practice?, I would guess that you would only use one or two speeds once you have gotten used to the machine.
That friction drive on the disc is going to be a lovely damper for the system, so you won't need to worry about torsional vibration, which can eat a gearbox pretty quick.
Look forward to seeing your Mad mod.
Mark
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The gears, shaft and bearings came in over the weekend. I had ordered a 24 tooth and 48 tooth gear. And damn, if the are not heavy.
Both had a .5" inner diameter hole. Both gears can be bored, so I took the smaller of the 2 gears to.75" to match the drive shaft.
(http://journeyofbrass.com/Gallery/albums/userpics/10001/normal_1102162118_resized.jpg)
Now the hurdle to overcome is fitting 2 gears and 2 pulleys where there is supposed to be only 1 pulley. The larger gear is too thick and doesn't allow any room for a mount/bearing on the inboard side (close to the motor)
(http://journeyofbrass.com/Gallery/albums/userpics/10001/1102162118a_resized.jpg)
(http://journeyofbrass.com/Gallery/albums/userpics/10001/1102162214_resized.jpg)
Serious head scratching as to how I could make this work. Started to think about cutting and welding. Trimming the gear itself down... Then it hits me. Bore a pocket in the big gear!
So onto a boring job! Ignore the step, I started a little too deep. At least it is lighter now!
(http://journeyofbrass.com/Gallery/albums/userpics/10001/1102162210_resized.jpg)
FYI... I just finished replacing the bearings on my lathe and adding a 4" realbull spindle...
And I think it is going to work!
(http://journeyofbrass.com/Gallery/albums/userpics/10001/1102162211_resized.jpg)
Now I have to figure out how I am going design the mount. I still may not be able to fit a bearing on the inboard side. Might have to use a bronze bushing.
It will take me a few more days to work out the mount.
Eric
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Looking good Eric :thumbup:
I'm a bit puzzled by the axial position of the pulley though. Surely you want it OUTSIDE the front plate of the new gearbox :scratch:
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Looking good Eric :thumbup:
I'm a bit puzzled by the axial position of the pulley though. Surely you want it OUTSIDE the front plate of the new gearbox :scratch:
I thought so too. I just don't have enough room to do it that way. The pulley that is used to drive the wheels is located very close to the motor. That would locate the gears directly in the way of the pulley on the crankshaft driving the auger/impeller. Lack of space is forcing me to come up with a strange solution.
It will be clearer in a few days (I hope!) :bugeye:
Eric
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I ordered a few more things today. Namely the aluminum needed to make the bracket. Ordered tap/drill and some grub screws to secure the gears. I also ordered some heavy duty C clips so the shaft doesn't work itself out of the bearings.
Hopefully this weekend I will start the bracket. I have been mocking it up in CAD.
Eric
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Eric, we need to see that mock up
:worthless:
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Eric, we need to see that mock up
:worthless:
And you will as soon as I get further on it. Right now, I have only been laying out the mounting holes etc... :dremel:
I have a lot more to do :zap:
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Here ya go Andrew. Very rough draft...
(http://journeyofbrass.com/Gallery/albums/userpics/10001/New_Assembly_28929.jpg)
The back side will be bolt to the engine case engaging the gear on the shaft.
(http://journeyofbrass.com/Gallery/albums/userpics/10001/New_Assembly_28829.jpg)
Still have some spacing issues to work out.
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I wish I could do rough drafts as rough as yours - those are good ! Is that Fusion 360 ?
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Looking good Eric :thumbup:
I'm a bit puzzled by the axial position of the pulley though. Surely you want it OUTSIDE the front plate of the new gearbox :scratch:
I thought so too. I just don't have enough room to do it that way. The pulley that is used to drive the wheels is located very close to the motor. That would locate the gears directly in the way of the pulley on the crankshaft driving the auger/impeller. Lack of space is forcing me to come up with a strange solution.
It will be clearer in a few days (I hope!) :bugeye:
Eric
Are you going to run the gears dry Eric? :scratch:
Dave
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I wish I could do rough drafts as rough as yours - those are good ! Is that Fusion 360 ?
It's Alibre 2011. Kind of old, but does the trick.
Eric
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Are you going to run the gears dry Eric? :scratch:
Dave
Hi Dave,
I hadn't really thought about it. There's nothing in the data sheet for the gears that say they have to be oiled/greased... So I was going to run them dry. Maybe some a drop or two here and there.
Eric
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If they are open (ie not enclosed) I'd use a sticky oil like chain bar oil or lathe way oil to stop it flying off. But they need some form of lubrication if they are to last.
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If they are open (ie not enclosed) I'd use a sticky oil like chain bar oil or lathe way oil to stop it flying off. But they need some form of lubrication if they are to last.
(http://journeyofbrass.com/Gallery/albums/userpics/10001/1102162211_resized.jpg)
The pulley already looks to have its shoulder inside the gear - I wonder if it'll need to be a bit further out so you can rig some sort of baffle to stop the oil lubricating the belt as well?
Dave
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The pulley already looks to have its shoulder inside the gear - I wonder if it'll need to be a bit further out so you can rig some sort of baffle to stop the oil lubricating the belt as well?
Dave
You are right Dave. The pulley slid in too much when I took the picture. Good eye!
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If they are open (ie not enclosed) I'd use a sticky oil like chain bar oil or lathe way oil to stop it flying off. But they need some form of lubrication if they are to last.
I was thinking of using motorcycle chain lube.
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I played with it some more last night. I reshaped the space between the two plates and made it a bit thicker as well. I am going to turn up some spacers to help hold things in the right position.
(http://journeyofbrass.com/Gallery/albums/userpics/10001/New_Assembly_28129.jpg)
Waiting on the stock to get here. Hope to get some parts cut this weekend... if the mill is willing!
Eric
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I might cut a trial back plate today/tomorrow to test the location of the gear. I want to make sure it is meshing properly with the gear on the crankshaft.
Eric
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Too late now as you've bored it, but I'm surprised that you used a gear with a hub. If it was a plain gear fixed to the shaft with a keyway then the whole thing could have been considerably thinner :scratch:
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Too late now as you've bored it, but I'm surprised that you used a gear with a hub. If it was a plain gear fixed to the shaft with a keyway then the whole thing could have been considerably thinner :scratch:
Not worried about the bore. The pulley will still use it's grub screws to secure against the D-shaft. The gear is bored so I can take up some space as needed for placement. The spacers would just prevent the gear from backing up. When I was talking about placement of the gear, I meant in relation to the gear on the crankshaft... the distance between the two.
I was having difficulty finding what I needed for gears. Plus, time is limited for this as I have other things that need to get done in short order before winter is here. Not to mention the lack of any real planning :smart:! McMaster Carr had these and they would work... so yeah, not the best possible solution, but I think it will work. Eh.. Live and learn I guess.
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Looked at it some more a few minutes ago. I have to redesign the bracket just a bit. The gear/pulley needs to move up in relation to the camshaft about 10mm to get decent tension on the belt. No biggie... will do it this afternoon.
Eric
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Eric:
I know this is late in the game, I just found this thread, but couldn't you have just put in a bell-crank to reverse the direction of throw from the shift lever? So that it was pushing the driven wheel across the output shaft to the left for the forward direction instead of pulling it to the right. I could have the direction backwards, but that's what the shiny areas in the photos seem to indicate.
Don
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Eric:
I know this is late in the game, I just found this thread, but couldn't you have just put in a bell-crank to reverse the direction of throw from the shift lever? So that it was pushing the driven wheel across the output shaft to the left for the forward direction instead of pulling it to the right. I could have the direction backwards, but that's what the shiny areas in the photos seem to indicate.
Don
Hi Don,
That was an initial thought. 2 Problems with that, every speed would have been twice as fast (Cam pulley spins at half speed) and there is not enough room to get full forward speed. Wish it would have been that simple...
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Some spacing issues have been correct. Hopefully, this is the final version.
(http://journeyofbrass.com/Gallery/albums/userpics/10001/New_Assembly_28629.jpg)
(http://journeyofbrass.com/Gallery/albums/userpics/10001/New_Assembly_28529~0.jpg)
I hope to cut this weekend...
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Eric - how are you going to keep the gear lube off the belt?
Dave
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Eric - how are you going to keep the gear lube off the belt?
Dave
There really isn't a way. Just going to lightly lube it motorcycle chain grease... just cause the stuff is sticky... Otherwise, the gears running the wheels aren't lubed either.
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I would have thought that, for the amount of use it's going to get, the gears would last most of the rest of the life of the machine even without any lube? Or how about some graphite lube if that's available?
Anyway, this is top stuff, a real MadModder project - I'm loving it :) I may have to do something similar to a lawnmower, just for the hell of it!
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I would have thought that, for the amount of use it's going to get, the gears would last most of the rest of the life of the machine even without any lube? Or how about some graphite lube if that's available?
Anyway, this is top stuff, a real MadModder project - I'm loving it :) I may have to do something similar to a lawnmower, just for the hell of it!
Its fun using my brain for something else besides work. These motors, which I am sure you can get over there, can apparently be hopped up to 27+ HP. I am thinking a go-kart winter project might be in the works.
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Well, I need a 5/16 endmill. Thought I had one, but I don't. Had to order it... Hope to have it by Monday or Tuesday. Project on hold for a few days.
Eric
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Another set back. Had a minor emergency to take care off. Hope to be back on it this weekend.
Eric
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Fun read.... Looks interesting.
Rather you than me.... However I'd much prefer this to re-lining a 12x8x3ft pond!
Good luck, Take your time... No rush :thumbup:
Ralph.
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Back on track. Sort of...
Last night I had a little bit of time and got into the shop. I did get all of the holes drilled out on the plate blanks. Unfortunately, I didn't get any pictures... well, they would be pretty boring to look at anyway...
I am hoping for time tonight to get the plates profiled and possibly get the bearing pockets bored out. We shall see. I promise to get pictures tonight. Profiling the plates will be slightly difficult as I believe I am just at the edge of my mill's Y axis limits (one of the reasons I am going to rebuild this mill).
Eric
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Did some profiling tonight. Again, no pictures... Namely... it looks like garbage and I didn't feel like taking any. It has been a struggle all evening. The motor on this mill just isn't cut out for cutting anything but air. The motor constantly stalls and I end up blowing a fuse. So, I am out of fuses until I get over to the store to get some. I hope to get them tomorrow or Wednesday.
I am having to do the profiling in sections. My mill just doesn't have the movement on the Y axis to cut it in one shot (stupid X2!).
After the snowblower is done, I need to finish replacing the motor on the mill. I have built a new controller... I have a decent TM motor. I just need to machine up a new mount.
Frustrated.
Eric
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I went to do some more work on it... Test fit the back plate and realized I put the hole .2" to close to the output shaft. Thought about just slotting the the mounting holes, but I don't quite have the room I need. Soooo back to the drawing board.
Ended up ordering new bearings for the mill motor. Hope this cures some of the issues i am having. Should be here tomorrow.
Eric
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I had to replace the bearings in the mills motor. They were shot. The mill is much quieter now. I am still having issues with the controller (an old Dell laptop). It will freeze occasionally and I am losing some steps somewhere. I do have a replacement PC... I just have to get motivated to replace it.
I started to mill the plates. I know it looks like I made a mistake in this picture.With the travels on my mill and the lack of the Z being under CNC, I had to cut some clearance at the start. I did get it a little too close, but it wasn't an accidental crash.
(http://journeyofbrass.com/Gallery/albums/userpics/10001/1117162327_resized.jpg)
(http://journeyofbrass.com/Gallery/albums/userpics/10001/1118160107_resized.jpg)
I did have a crash though. I lost some steps somewhere and messed up both plates. I have to clean them up and figure out how to recover. I don't want to re do this.
Eric
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Looks like your making good steady progress Eric :thumbup:
Rob
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Had a bit of motivation today. Woke up to this:
(http://journeyofbrass.com/Gallery/albums/userpics/10001/1120161018_resized.jpg)
So I spent a bit of time in the shop. Corrected the machining mistakes the best I could. Turned up some spacers. Tapped, slotted and bored the plates. Did a quick test fit.
(http://journeyofbrass.com/Gallery/albums/userpics/10001/1120161643_resized.jpg)
Then I drilled and tapped the gears for the grub screws. Cut the 1st groove in the new shaft for the C-clip. Mounted it up for another test fit.
(http://journeyofbrass.com/Gallery/albums/userpics/10001/1120162224a_resized.jpg)
(http://journeyofbrass.com/Gallery/albums/userpics/10001/1120162224_resized.jpg)
The gears seem to mesh nicely. I need to trim the new shaft and cut the groove for the other C-clip.
Once that is done, I can reinstall the drive mechanism and fully mount the new engine. I still need to figure out how I am going to build the mount for the rod that spins the chute. I have one side figured out. Can't do the rest until I have the blow back together. Hopefully by Tuesday I will be working on that piece.
Eric
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Good progress Eric, almost there now !
Try and keep that white stuff on your side of the pond, please
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Snow is a good motivator. We got about 15 cm of it for two weeks and -16C (pretty cold - unseasonally). Now it has been raining and +6 for four days, snow is memory and because we have only few hours of daylight all looks pretty dark. I would take the snow.
Pekka
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Update...
I have almost all of the parts made. I need one more piece as bracing for the chute pivot mount. I ordered a bunch of hardware to assemble it. Should be here tomorrow. I also ordered new shear pins for the auger and ordered some rubber "paddles" for the impeller. <-- more on that later.
I also cleaned up the parts I made. I don't have any pictures today... Phone died ad it is getting late. I will try to get some up tomorrow!
Eric
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:worthless:
:lol:
Getting there chief :thumbup:
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Tis looking very festive over there Eric :palm:
You better get your finger out :poke:
Rob
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I get it! Pictures inbound!
Collections of parts for the gear reduction and pivot mount for the chute.
(http://journeyofbrass.com/Gallery/albums/userpics/10001/1130162041_resized.jpg)
Starting to mount things up
(http://journeyofbrass.com/Gallery/albums/userpics/10001/1130162135_resized.jpg)
Ready to go. Almost...
(http://journeyofbrass.com/Gallery/albums/userpics/10001/1130162210_resized.jpg)
(http://journeyofbrass.com/Gallery/albums/userpics/10001/1130162210a_resized.jpg)
Before anyone says it... Yes, I know, my shop is a total disaster. That is a winter project. Cleaning and organizing!
So, the back part is almost ready to go. I need to mount the handles and adjust the drive. Then it is on to the front (were it eats the snow). I want to clean it up, do a little work and mount some rubber paddles on the impeller.
So... more pictures later.
Eric
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Nice work Eric, glad it's coming together, I feel a certain proprietorial interest in the concept :thumbup:
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Very nice work! Don't beat yourself up because you think your shop is a disaster, it doesn't stop you from doing things!!
All the best, Matthew.
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:thumbup: looooookin good :clap: :clap:
Rob
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***Update***
I decided to paint it yellow, add a headlight and stretch the auger to 24".
(http://journeyofbrass.com/Gallery/albums/userpics/10001/1202161252_resized.jpg)
Eric
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brill :D
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Excellent to see it finished Eric, just needs 'go faster stripes' and some pictures of it in operation :clap:
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:bugeye: :bugeye:
Wow. It looks like a new machine. :scratch:
Russell
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Fantastic bit of Modding. :thumbup:
Pete
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Hey guys... I am feeling kinda guilty. I was trying to be funny. That's not the same machine.
I was telling a neighbor about the project a few days ago. So yesterday, he shows up at the house with that snowblower and just gives it to me. Compared to the one I was working on, it is in a different league. 24" auger (compared to 20", so it cuts a bigger path), electric start, headlight, 6 forward & 2 reverse gears, power steering.
I figure it is time to retire the other project and use the motor for something that is more fun than a snowblower. My son is thinking go-cart.
Eric
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....... there's going to be a hanging ....... :bugeye:
(But nice score on the new one - a good neighbour indeed ! )
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Hey guys... I am feeling kinda guilty. I was trying to be funny. That's not the same machine.
No need to feel guilty. I think you played it very well. You had me for all of two seconds before I thought "DOH!, That's a different machine!"
I get that a lot, jokes going right by people...
Now if only I could get a neighbor to give me a snowblower.
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I spotted it - but was trying not to spoil the joke! :lol:
Russell :lol:
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The next thing you know the neighbour on the other side will be donating a go-cart and the bloody Honda engine will be up for sale :) :) .....OZ.
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Nice one Eric, I enjoyed the twist in the tale. :clap: :clap:
John
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ooooo cheeky
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:lol:
Nice :thumbup:
And as for you think your shop is a disaster.... :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: Mine makes yours look positively clinical! :palm:
Waiting for the Go-cart thread :)
Ralph.