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Hi Dan,
Amazing work. Really appreciate the efforts taken to build a reliable firmware + hardware combination for such diverse applications. I was playing with skycam version for some days now. I have a ramps+mega with 4 drivers in place. Firmware is working almost same, iam using threads, not the pulley-belt mechanism.
I am considering of adding 4 more steppers to get the 6 dof control. In theory its working, in the sense i made a y connector for each stepper driver and was able to make 8 motors controlling a skycam simultaneously. but for z axis movement to work effectively, i need to reverse the bottom 4 motors alone.
What could be the best way to do this in firmware ? My options are,
1. add 4 more stepper drivers in ramps, wire it outside, configure it and make the firmware work in a way to reverse the movements at the time of z axis travel
2. Or stick to 4 stepper drivers and split wire them with y connectors, put an additional circuit to reverse the z axis moves alone, without making huge changes in firmware.
Would love to hear your thoughts on this. Thanks i advance. Its a poc kind of work, if it works well, may be i cna go ahead and make a full fledged cdpr fork on it too.