Had to tap two holes in demons older bisalloy 400 disks and had to drill the hole out pretty big to get it to go through. ~ 7.3mm hole for an m8 or something to that effect with a new tap.

The datasheet IIRC has info on how to tap it and the recommendation is that more or less.
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www.demon50s.com - Minimoto parts
http://www.youtube.com/user/HyzerGlen - Videoooozzz

The HAZ of plasma cut is hard as crap, hit that with a grinder, the rest of it isn't too bad really.
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Mechanical engineers build weapons, civil engineers build targets

one trick for drilling hard mat (not sure if you guys know this sorry if you do) is to mark the holes you want to drill, then heat heat those points till they are red hot all the way though the thickness of the mat sometimes heating from both sides then let cool naturally,or let cool in/under sand,for really hard stuff you might need to do it twice.

Hard to grind the HAZ out of a hole though Jake lol, heating is probably best. Not too hard to get it read with a MAPP torch from bunnings

Check this, got my eccentric engineering toolholders the other day. What monster tools. SO very worth the $100.

6mm Depth of cut in 2011 aluminium at double the proper speed. Would have gone deeper but its literally the depth of the tool bit lol. 'Mazin. Will post up a real review later

http://youtu.be/zZXxKtK7RiE
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www.demon50s.com - Minimoto parts
http://www.youtube.com/user/HyzerGlen - Videoooozzz

looks genius Glen..couldn't find em on ebay though...got a link?

Also how do you guys get your lathe tools centred?...i just shim mine up with bits of ali flat bar....but that is a pain especially for facing.... when you need it perfect?
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Miles Blow - Julie Pitts
www.mulesfilm.com.au
www.wombokforest.com.au

-Pickasso- Vivid Sportsman champion 2015

holy shit dude!
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<Patrician|Away> what does your robot do, sam
<bovril> it collects data about the surrounding environment, then discards it and drives into walls

IKR, all the craycrays, Machine barely vibrates or anything at all. Just cuts like butter <3

M&J - Yeah its just one guy that makes them in melbourne Here's his store - http://www.eccentricengineering.com.au/

For shimming yeah i just use a set of $10 feeler gauges to pack it up, i use the center in the tailstock as a guide to getting it right. Though if you have a quick change toolpost you dont need to shim them.

You can adjust the height of the HSS in the eccentric engineering toolholder so no need to shim that up either. Tis why i like it even more
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www.demon50s.com - Minimoto parts
http://www.youtube.com/user/HyzerGlen - Videoooozzz

ahhhh feeler gauge so simple .....perfect
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Miles Blow - Julie Pitts
www.mulesfilm.com.au
www.wombokforest.com.au

-Pickasso- Vivid Sportsman champion 2015

I've always just used a piece of 2.5mm steel that for some reason is perfect for the cutter i use 95% of the time

But i think i need to look into this tool glen has bought
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<Patrician|Away> what does your robot do, sam
<bovril> it collects data about the surrounding environment, then discards it and drives into walls

quote:

---

Originally posted by Jaemus:
I've always just used a piece of 2.5mm steel that for some reason is perfect for the cutter i use 95% of the time

---

lol
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<Patrician|Away> what does your robot do, sam
<bovril> it collects data about the surrounding environment, then discards it and drives into walls

It would be best to not plasma cut the holes then try and drill them after.
just leave it blank then drill it.

That tool is nice, what was the finish like on that pass?
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Mechanical engineers build weapons, civil engineers build targets

oh yeah

http://youtu.be/omK88xs6msk
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The Engine Whisperer - fixer of things

it looks good.
But when the head moves it sounds like it needs an adjustment or is it the belt making the noise.

to me it sounds like something is a little tight or belt rubbing on a side wall of drive / spindle wheel. but could be the recording.
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It's all about the destruction.

yeah the Y axis reduction drive belt is falling apart and rubbing on stuff.
It came with a box of spare bits, and I think there's a belt in there
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The Engine Whisperer - fixer of things