Wow, nice job. I installed sketchup a while ago, never thought to try and use it to plan out a cnc!!!
just emailed you...
drawn using google sketch up, the free version doesn't export in dxf if anyone wants the .skp file please email me at cnc_automation@hotmail.com also 2d dxf is availiable if required
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Wow, nice job. I installed sketchup a while ago, never thought to try and use it to plan out a cnc!!!
just emailed you...
imo a single central leadscrew for a 4 foot gantry would not work.
I think you will have racking problems even if the gantry is built with a balsa torsion box.
What do others think?
Andy
Drat, imperfection has finally stopped working!!
well i dont know for sure yet, but i'm planning to run a central single screw and my gantry is 61 inches wide.... but i'm also building mine totally outta steel... so there is considerably more rigidity than one made of wood...
Grizzly X3, CNC Fusion Ballscrew kit, 3 500oz-in bipolar steppers, 3 203v Gecko's, Linear power supply from Hubbard CNC, Mach 3, BOBcad Pro Art V22, Rhino.
I built a 65" OA wide gantry driven by a single center screw.
I made mine using torsion boxes made of MDF, hardboard, hardwood and phenolic laminate. It has a full 50" cut and works extremely well. I have another screw/motor/bearing set I was going to use for twin screws if the single didn't do the job, but I won't need them on this machine.
Steve
DO SOMETHING, EVEN IF IT'S WRONG!
will try single, can always rethink after
thats what im thinking on mine, i'm hoping that i can get some more donw on mine the nest couple days off i have.. i'm gonna try a single centered, and then if im not happy i can allways pull that one off, move it to one side, and add a second on the other side....
Grizzly X3, CNC Fusion Ballscrew kit, 3 500oz-in bipolar steppers, 3 203v Gecko's, Linear power supply from Hubbard CNC, Mach 3, BOBcad Pro Art V22, Rhino.