Kossel endstops

If the Kossel mini only uses 3 end stops why did my set of parts come with 6 holders?

I finally figured it out after much searching and mulling it over. The other 3 end stops are intended to help align the linear rail which I'm not using not to be min positiion switches. Min position end stops made zero sense because there is no way to set them up so that the head could not crash in some way.

Not exactly. They are there to stop the truck from going off the rail.

I'm not using rails, I did the wheels conversion.

I followed your config steps you sent and I have X and Z moving in the right direction by Y is moving downward no mater with direction I try for Z.

What should I be looking for?

Sounds like your direction signal is not being recognized by the driver. You don't have Y-min enabled do you? What does M119 report?

Edited 1 time(s). Last edit at 05/05/2014 11:09AM by jaydmdigital.

I suspected the direction pin based on the behaviour and swapped in the extruder driver which magically fixed the problem.

I did have the endstops wired to the min inputs because thats what the configuration on the Repetier tool had at first. I switched them to max and re-did the config and now I can how with G28 just fine. I'm working through the steps in the article you referenced in your blog post to set the X, Y, Z towers and then the plate center.

Not a bad Sunday, setup the whole firmware toolchain, compiled and downloaded firmware, got extruder and bed heaters going, got X, Y, Z all moving correctly and roughed in endstops.

My X, Y, Z are still a bit high and I have not even started to tweak the center. About now is when I would appreciate the adjustment screw I've seen on other carriages. I'm stuck moving the endstops on the openrail which is frustratingly tedious but I'm getting there.

If using Repetier, use the Tower endstop offsets to "move" the endstops toward the print surface.

[reprapandme.blogspot.com]

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WZ9V
My X, Y, Z are still a bit high and I have not even started to tweak the center. About now is when I would appreciate the adjustment screw I've seen on other carriages. I'm stuck moving the endstops on the openrail which is frustratingly tedious but I'm getting there.

Thanks. I had forgotten about those. I'm so close at this point it probably is the right time to use that adjustment.