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23-06-2018 #30
My first clamp I made was aluminium extrusion and it flexed when I ran the machine over 2m/min when cutting so I went a little OTT with box section steel and toggle clamps lol.
They're <£1 a clamp that's why I went so OTT, you only need 4 per part, gives me a clamping range of 15mm-28mm thickness, need to put holes in the end metal plates yet so I can use T bolts to attach and adjust the clamp. Going to use 2 per plate so 4 per "clamp for 8 T bolts in total. Wing nuts for tool free adjustment and speed.
There's 28 clamps on this cost ~£32 to build I had the box section, the annoying bit was drilling and tapping 112 holes to fir the clamps, box section is 3mm wall thickness. At the moment everything I want to work on is 20-25mm thick although I might make another one to do thinner material, need access to a steel milling machine for that.
You'll see I already lost one the rubber clamp bits will need to put a new one on, if you use these You should do what I intend to do and drop a nylox nut on instead of the normal one so it won't come loose.Last edited by Desertboy; 23-06-2018 at 07:23 PM.
http://www.mycncuk.com/threads/10880...60cm-work-area My first CNC build WIP 120cm*80cm
If you didn't buy it from China the company you bought it from did ;)
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