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| Brass_Machine:
--- Quote from: John Hill on January 08, 2015, 09:29:22 PM ---Eric, fixed table and moving gantry. --- End quote --- Are you going to use one stepper to move the whole gantry or two? I have been gather the parts to do a router. (8020!). Been debating back and forth if I want to do a fixed or moving gantry. Decided on a fixed gantry for the sole purpose of rigidity. With the 8020 I figured it would be stiffer. I will definitely be watching what you do! What will you be using for controller? Eric |
| John Hill:
Eric, I will be using the one washing machine motor to move the gantry and a 'cats cradle' arrangement to discourage any wracking. I shudder at the thought of the cost of a 2 metre acme feed screw hence the idea of the endless chain drive. My plan is to locate one end of the gantry with skate bearings around four sides of a square steel side rail (30x50mm rhs) but the other end of the gantry will just have a wheel running along the top of the rail on that side. Time will tell if this will be adequate for router service. I have a Linux installation of EMC2 but I am yet to learn anything about the other software that will be required to do anything useful. |
| vtsteam:
John, I've used LinuxCNC (EMC2) with a moving gantry style mill, and like it. There are lots of choices for designing and producing the G-code, but one free combo that works well on a Linux platform (through WINE) is the old Google Sketchup 7 or 8 in combination with the Phlatboyz Phlatscript. I've used all three together, and they are all no-cost software. |
| John Hill:
Thanks Vsteam, I might have to get back to you when I am further along on this little 'adventure'. Right now Stepcon software is crashing while I am trying to 'tune' these motors which I hope is not a deeper problem with hardware suitability. The metal supply shop will be open again on Monday and I will be able to get started on making the sliding components for the X axis. |
| vtsteam:
John, Can you say how stepconf is crashing? Is there an error message or does it close silently? And which version of LinuxCNC are you trying out? If it crashes silently, can you open a terminal and run it from there? When you do that there should be some error messages displayed. |
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