Thread: 1200mmX900mmX170mm 4axis cnc
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02-08-2017 #1
With 2 off 90x90 sections stacked on top of each other with what looks like another 90 mm gap the gantry is going to be very tall. This means the loads going into the top rail are along way from the X axis ballscrews (which react that load) and you are reliant on the sheet panel sides to do the load transfer.
Is this height because you need lots of Z travel?
Whilst yes this would work, I think there are more elegant steel fabricated solutions. For example this one from 'Toomast':
There's this one too:
Both involve welding so as you point out care is required during construction.
More popular is aluminium extrusion for the gantry because it is easier to work with:
For wood working, guitar making and occasional aluminium I would say all the above are suitable designs.Last edited by routercnc; 02-08-2017 at 07:16 PM.
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02-08-2017 #2
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03-08-2017 #3
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04-08-2017 #4
Hohoho you know the phrase "seek and you shall find". Well done ;)
But if I remember correctly my choice was 80x160 profile for gantry but jazz and Boyan stated that 2pcs of 80x40 is plenty enough in L formation. That gives the gantry a hight of 120mm!
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04-08-2017 #6
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..Clive
The more you know, The better you know, How little you know
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The Following User Says Thank You to Clive S For This Useful Post:
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