I need some help from you guys to figure out the home sequence. The problem is you can't just run each end into an end stop. The z height can change for a shoulder nut without its stepper turning.
Here are the options I have so far...
1) Manually home it. This can be pretty fast. Provide a crank and it would be super fast.
2) Run everything up until one hits. Back it off a safe amount. Repeat with the other two and then with the one last remaining one. At that point you go through the process again but this time you don't back off as much. After a few iterations with shrinking back off amounts you are good.
3) Just like 2 but you have it solve for the position of all the carriages after the first iteration. This would be rough to program and would be rough on the processor.
Here are the options I have so far...
1) Manually home it. This can be pretty fast. Provide a crank and it would be super fast.
2) Run everything up until one hits. Back it off a safe amount. Repeat with the other two and then with the one last remaining one. At that point you go through the process again but this time you don't back off as much. After a few iterations with shrinking back off amounts you are good.
3) Just like 2 but you have it solve for the position of all the carriages after the first iteration. This would be rough to program and would be rough on the processor.