Recent Posts

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Project Logs / Re: My little Demon so far.
« Last post by Doc on June 25, 2017, 10:00:28 PM »
Thanks Tom!


I haven't checked in in awhile. Been busy with garden stuff but did get a little shop time the last couple weeks here and there. I did get motor box's or stands done and did model up a radiator that I'm gong to attempt to build. Going to use aluminum for the fins not sure if my plan will work or not but I'm going to give it a try anyway. The reason I'm going to try and use aluminum rather than brass it will conduct heat almost twice what brass will. And I just want to see if this will work. ;)  Anyway here is a video showing the box stands I made.

<a href="http://www.youtube.com/watch?v=tldu3gT8Coc" target="_blank">http://www.youtube.com/watch?v=tldu3gT8Coc</a>
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Our Shop / Re: Moving shop again (again)...
« Last post by PekkaNF on June 25, 2017, 08:43:17 AM »
Oddly here used office fourniture is cheap. Very presentable (sold to offices) recycled mehanical tables are are about 200€ and electrivcal ones 400€, if they come too tatty for offie, they sell about 50-100€ and still would be nicer than any work table I have home.

Check the second hand market. They are very nice to work with...only downside is that you really can't pile stuff under or over them....and you learn to route computer cables  :doh:

Pekka
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Radio Control Models / Re: Build a drone video series
« Last post by awemawson on June 25, 2017, 06:10:21 AM »
Looking very good Jay - if only my to do list wasn't so long already !
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Project Logs / Re: New Tractor Shed
« Last post by awemawson on June 25, 2017, 02:49:00 AM »
Can't do that John, as the high end is the level of the farm yard, so if we scraped off there there would be a drop into the shed  :bugeye:
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The Water Cooler / Re: Measurement Terminology
« Last post by PekkaNF on June 25, 2017, 02:30:17 AM »
Metric or imperial? Best system is what you are used to. I'm from Finland and we are metric to the core.

However, much of the old (farming) stuff was british (with their withworth thread and imperial units, some stuff was american (UNF/UNC bolts and their understanding of imperial unis). Some tractors hand mixed fasteeteners. Tire /Wheel size is still mixture of the unists like 15" rim and rest in metric.

Building boards were metric as far as I can remember, but I remember when lumber was defined often in incehes like 2x4". Coarse units seem to work well on rough work.

We used to make some machine in imperial dimenssions for american market. It was a mess, materials had to be imperial or there was waste, some sizes were easy to adjust, some not. But engineers can do bolt paterns and use prefered size tables withhout moaning. We stoped doing them when american buyers stopeed insisting on them.

Best part was one canadian customer, we delivered there a proction line, metric off sourse. They had some imperial stuff and delivered nearly half their production to USA (some in metric dimenssions and some not). We have pretty mutch math and program in the PLC and then a user interface to control the procutiont. We can scale the user intercase to foreign unist/accuracy. They wanted one dimenssion input in inches and all the others in metric - all resuslts had to be shown in in metric (mill computers and information system was metric so were the orders, imperila units were on "info field"). The the system was build to certan accuracy and display reflected that. They took the metric display as a gospel, but said that the inches looks like they have way too many digits.....although they were correct and accurate conversion.

I don't use imperila units, I convert them. I have an idea what bolt sizes and AF are, I still have set of imperila tools, left from couple of yeras for maintaing my Harley (1984 late model FXST). BUT if i need to something for a hobby building I try to find metric drawing and if the fails, I'll do a doodle that has inch/mm main dimenssions and see how that needs to be adjusted on metric material and thread sizes. I much prefer German drawings, not only because they are metric, but also the materials make sense to me and find them easier to read.

This is my history, everybody has a diferrent story.

Pekka
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Project Logs / Re: New Tractor Shed
« Last post by SwarfnStuff on June 25, 2017, 01:10:45 AM »
I suppose you considered digging the high end and plonking that at the low end? Bit late now I guess and perhaps that would put the entry into your (eventual) new workshop either down a ramp, or up a ramp.
 :Doh:  Seems I have just answered my own suggestion, the way you are proceeding should have the entry level with the existing land. 
Good luck finding the fill.
John B
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The Water Cooler / Re: Measurement Terminology
« Last post by tom osselton on June 24, 2017, 11:42:47 PM »
 I remember that mars probe.... A lot of coin just to make a pancake! But that is why we have the lowest bidder right? From what I remember both Canada and the USA were changing to metric at the same time but the Americans thought it was too costly to change all the signage. Course I could be wrong its what I was told. There also wasn't much metric in school either I think we had a couple of weeks of it.
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The Water Cooler / Re: Measurement Terminology
« Last post by Lew_Merrick_PE on June 24, 2017, 08:46:40 PM »
i admit that I hate the "unit" the Newton and all "units" that derive from it!  However, having purchased a large and expensive set of sub-micron micrometers and dial indicators in 1968, I was burned by the 1969 redefinition of the metre.  The changeover from Centigrade to Celsius of the early-1970's (not being certain of the year) to change 0°C for the "improved" triple-point of water also affected me.

As the senior mechanical design engineer on the program the developed automotive airbag restraint systems, it was the engineers from Japan and Germany who had the most problem with exploding inflators because of the rapid change in units across Pascal (pressure) measurement!  American engineers using psi had virtually no such problem.  I forget which year it was, but we crashed a "Mars probe" because the ESA assumed that accelerations were measured in m/sec˛ rather than gravitles (the "standard" since Goddard's day).

When I do work for German agencies and companies, the use of kgf is required.
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The Water Cooler / Re: Measurement Terminology
« Last post by vtsteam on June 24, 2017, 07:05:12 PM »
its always perplexed me that Americans always say they don't understand the metric system.....
......when i interact with highly skilled and educated engineers they all piss and moan on cross referencing metric to imperial… they even say they don't get it.. To me it's just being lazy after all they had to pass the math test to get the diploma, I think this is mainly the largest reason why the US is one of only a handful of nations not on the metric system.

Americans always....
engineers all....
piss and moan.....
lazy......

This road is about 1 meter long. In other words, a short one. Might be best not to start down it.
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CNC / Re: DDCSV1.1 4 Axis controller
« Last post by maxx2000 on June 24, 2017, 05:30:21 PM »
Yes, it will be connected to the my CNC machine
Buttons duplicate the keys of the controller to make it easier to work with gloves. On the free you can connect functions such as forced on / off cooling, dust extraction, vacuum, etc.
New functions do not apply to the controller, the panel simply provides buttons for control.
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