dual z axis homing problem
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hi,
if i understand it right you first assign Port 8 and 9 to Z-Axis after that you assign port 9 to U-Axis i think the U9 is here Wrong
M584 X0 Y1 Z8:9 U9 E3:4 P3
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I followed the instructions in this link :https://forum.e3d-online.com/threads/bigbox-dual-optical-z-max-endstops.2675/
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and this macro does work ? or not ?
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@marco-bona Which firmware version are you using? Note that M574 which you are using to map end stops was introduced in a beta version but later withdrawn because it had some adverse effects. I believe it works in RRF 3 beta but not that latest stable RRF2. There was another recent thread about it here https://forum.duet3d.com/topic/10968/problem-with-m574
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I'm using the latest firmware 2.03.
Before it worked, then after the update it started to give problems.
So the problem is just the limit switch mapping? -
@marco-bona said in dual z axis homing problem:
So the problem is just the limit switch mapping?
Yes. In these commands:
M574 Z2 C8 S0
M574 U2 C9 S0the C parameters will be ignored. So the Z axis will use the Z endstop input, and the U axis will use the E0 endstop input. If that's a problem then you will need to install the RRF 3 beta firmware and read https://duet3d.dozuki.com/Wiki/RepRapFirmware_3_overview.
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The z and e0 inputs are already occupied, I try to install rrf3 and remap the limit switches.
Thanks -
@marco-bona said in dual z axis homing problem:
The z and e0 inputs are already occupied, I try to install rrf3 and remap the limit switches.
ThanksWhat are they occupied with?
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E0 and E1 for laser filament monitor, X and Y for X-Y limit switches and Z for an overtravel switch
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You could connect the filament monitors to the two endstop inputs on the CONN_LCD connector.
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One is already occupied with the emergency button.
I have updated to RRF3 and the limit switches work correctly during Z homing
