Thanks Bernd, here's the result of some more fun
Let's just say I had a long day in the workshop yesterday
The assembled bolt with my homemade helicoil
And mounted back to the table. Some might notice the copper paste on the threads, after restoring a few cars, I never mount a screw without it
Next little fix was the table X-axis handle on the right side. The handles are of the type, push in and engage, but this handle only had one spot where it was possible to push it in enough to get proper grip
In all the other spots it only went this far in, and slipped immediately
So I removed the cover
Pulled the seeger ring and disassembled the mechanism
Having seen a few pictures of polished handwheel edges, I thought I'd give it a go
I should probably have started with some rougher paper, to get it all even, but then I'd have to paint the handle aswell
Then i took a file and filed the "claw" mechanism
Filed a bit on the counterpart and cleaned them
Assembled again, and now it works great
Newt up was the vertical spindle quill, which had bothered me from day one. As it was, there were no handles for moving the quill, the fine feed didn't work at all and the retracting spring was not engaged.
I don't have an instruction manual, so I just started at one point and began disassembling things..
Removed the retention washer and the dial scale
Slowly I seemed to get to the core of things. I also removed the bearing nut and the bearing, but ended in a hole cut in the casing and was not able to pull the shaft out this way..
To access the shaft from the back, I tried to tilt the head, but with no success
Then I decided to try disassembling the main shaft, so started removing things
Had to pull this of the shaft
Afterwards I found out that what I had just pulled of, contained the spring mechanism
Without beeing able to make progress on that side, I started on the other. But before I could pull anything of the shaft, I had to grind down the nasty edges from when people have used the quill with a simple screwdriver
Then it was just a matter of loosening a set screw and pulling it of
A new rusty shaft revealed itself
Removed the mountig bolts
And took it of
Still wanting to remove the main shaft, I tried to get the key out, but it sat in a key way which was perfectly sized for it, seeming to have a slight press fit. I tried heating the shaft with a heat gun, and cooling the key with some snow from outdoors, but no success
After several attempts, uncluding wise grips and hammers, the key looked quite bad
I reckoned I wasn't going to use it any more when looking that bad, so I figured I'd be a bit untraditional..
After having messed up bearing surfaces on previous projects, I was carefull to where I placed the grounding
Welded some spots and let it cool
A bit more welding and some minutes later, it loosened
It seems to also have rusted in it's key way, which obviously didn't make it any easier to remove..
I then tried to pull the shaft out, but soon figured it was stuck by the tooth rack on the back of the quill, so I lowered the quill as much as I dared, without having it fall out, and pulled the shaft out
The only thing left inside the bore now, is the worm-gear for the fine feed
The disassembled parts
I figured I wasn't going to be able to get the fine feed shaft out without removing the head from the machine, so I started repairing things instead. The spring mechanism was first out, and as you can see, the part which is supposed to transfer the forces to the shaft, was laying too far to the left
So I made some aluminium shims, and pryed them into place
I ended up using three shims before I was satisfied with the result
Here's the counterpart where the spring is supposed to hold
After having had some tea and some time to think, i finally understood how the fine feed is engaged. It's all in the mechanism on the shaft of the rapid feed handle
This shaft transferrs the forces from the rapid feed handle to the shaft. But if it is pushed inwards, the claw mechanism engages to the worm gear from the fine feed. So all in all, I had only needed to disassemble these few parts, clean them of rust and dirt, and put them back together again
Here you see the worm-gear counterpart
When I get a new key, I'll be able to assemble the whole lot again. That is, if I remember where all the pieces go
In the meanwhile, i found some suiting aluminium to make a fine feed handwheel
Bored it out with my new 18mm dormer drill
And turned it to size
Will have to turn the other sides aswell, but this is as far as I got
I have also begun thinking of getting me some mint-green machine paint, as there isn't that much work left before I could repaint the whole head
Oh, I managed to check one thing aswell. Thanks to kvom for the tip on checking the "ball point" for batteries, and yes, it had some
But they are strange ones, they are actually 12V each, labeled LRV08
Question:
- I need to buy a collet set. I have seen CDCO reccomended somewhere, and they have very good prices too. What do you think of this CAT40 ER40 collet set?
http://www.cdcotools.com/item.php?itemid=426- Will I be ok using this set, even though I mostly have metric sized cutters?
