Jam detection configuration - help please (1 reply)

Does anyone have a link to a step-by-step guide to configuring jam detection on Repetier, or have any suggestions to help, please?

I am using Repetier Host v2.0.0, Server v0.80.3 and firmware v0.92.9 and have added a Hall effect filament jam detector that pulses onto pin D40.

I have configured it in firmware using:

• Extruder stepper: 255 steps/mm
• Jam_Steps: 1366 steps (the detector gives 1 step every 5.357mm so I multiplied the steps/mm of the extruder by 5.357)
• Jam_Slowdown_Steps: 1500
• Jam_Slowdown_To: 70%
• Jam_Error_Steps: 2000
• Jam_Min_Steps: 50

When I test the extruder by extruding 100mm it does this fine but the jam detector reports that it is slipping.

Am I doing something obviously wrong? Is there any way to display the pulses or steps that the jam detector is reporting?

And as a secondary point, is there an optimum length per pulse for the detector? I am able to add more magnets to increase the pulses per turn so can easily amend the current setting.

Thanks.

Richard