Thread: Jcb's CNC machine Mark 2.
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29-08-2013 #1
So I finished my MK1 machine last year, with help from I2I, Jazzcnc and 20ep0z (if that's right!)
DSC_0070 by jessebaker, on Flickr
and I feel it's time to go bigger and better.
4 times bigger!
I've already got all my ball screws and bearings:
20130812_122840 by jessebaker, on Flickr
With thanks to fred from BST Automation on Aliexpress.
those are 5mm pitched screws on the X and Y. I know some people on here will say that I should of gone for 10mm pitch but the speed of the machine doesn't bother me in the slightest and I can always gear it faster.
So it's payday tomorrow so I'll be buying some aluminium in hopes to make this:
v2 by jessebaker, on Flickr
the Y rails sit on 6" x 1" alu bar and will have some square section bolted onto it to hold the rails and reinforce the gantry.
v23 by jessebaker, on Flickr
the X rails will sit on 3"x2" box section alu or more likely steel.
as well as having a CNC to help make this, I'm going to be buying a height gauge and a surface plate to help make it accurate. I remeber seeing 20ep0z use one to help me finish my gantry so I think it's a worthwhile investment. though I'll have to get a granite one.
what do you think chaps?
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