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diy sheet metal pinch rollers
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SwarfnStuff:
Well NeoTech an old standard for an old codger I guess. Ok stay with as is, I am pretty slick with the scroll wheel.
John B
Andrew Wildman:
not sure what the outcome of the picture size discussion was but as it is what seems to squirt out of photobucket as standard I will keep with the original size.  Sorry scrolling may be required!

So today I mostly machined keyways for 3/16 keys.
External keyways on rollers done on the mill

Internal keyways marked out on gears to centre.  The gears were rested on the plate on two of the teeth.  These two teeth were later used to line them up in the shaper.


Andrew Wildman:
The shaper was set up with the clapper replaced with a fixed slotting bar.  the part was sat up on parallels (and a shim) in the vice so that the gear could be clamper but still be aligned to the parallel and the gear was set vertical vrt the marking out using the two teeth and a square.

Andrew Wildman:
I found this picture of me grinding the 3/16 slotting bit when I was doing another project (actually rebuilding the quill power feed on the Omnimil, which I will post a thread on at some point)

I must have been grinding the back relief here.
This was ground on the oldest tool in my shop, I recon a 1940's cutter grinder.  I remachined and scraped it as it had about 0.02" wear on the x axis.
ausdier:
I thought the holes were for that.
It is just that in the plans that I have you can swivel the tops off to get the top roller out then you can get the sheet out.
It just means that if you need to do that you will have to completely unbolt the top brackets, all god.
Keep up the good work it is looking good.
Cheers.
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