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minimill dro revisited.

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wheeltapper:
Simple answer, take it out of the box, turn it on and measure something.

now its used. :lol: :lol:

wish I had a slot along the front of mine.

Roy


troutsqueezer, I can, I had to fix it to a steel plate so the holes could go in the right place.

I'll get a pic when it stops raining.

Stilldrillin:

--- Quote from: wheeltapper on August 23, 2011, 05:17:41 AM ---Simple answer, take it out of the box, turn it on and measure something.

now its used. :lol: :lol:

--- End quote ---

Nah!

Too late!  ::)

I took it out of it's box, then angle grindered all it's pointy bits off!  :D

Will measure something, another day.......  :thumbup:

Probably.......

David D

wheeltapper:
here's my vise, its a tilting one and the way the holes were it would only fit with the jaws across the bed which was alright for short bits. so I fixed it to a steel plate, now it goes on the other way.


after reading your question I suddenly realized the caliper would get in the way so I had a look and I think with a small clamp fitted under the vise plate it should still work.


Roy

NickG:
I really do need this doing to my mill! Might get around to it. think will buy some longer scales and see how they pan out. I don't want to spend too much as I know the mill isn't fantastic. Would be handy on the lathe too but at least I know those dials are accurate and sensible!

loply:
Just FYI for the OP, I made a similar thing for my lathe, see my thread:

http://madmodder.net/index.php?topic=5585.msg59385#msg59385

Things I learnt:

1) Tighten the gib screws on the calipers to decrease backlash

2) Make sure your clamp brackets are really stiff so as to not introduce backlash, to my amazement I had quite a bit and ended up using 5mm thick mild steel before I got rid of it, 2.5mm steel flexed by up to 0.05mm!

3) Alignment of the caliper 'body' is critical, because of the tight gibs mentioned in tip (1) any slight misalignment will cause the slidey bit to bind, thus creating stiction and various other problems, so ensure your mounting mechanism is designed such that you can align it precisely after mounting

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