Posts made by totalitarian

Thanks dc42, that makes sense now

So, I run G32 followed by a G29. When I try to reload the height map on my next print using G29 S1 I get the following error

Warning: the height map was loaded when the current Z=0 datum was not determined probing. This may result in a height offset.

I read the docs but not sure how to reload the datum as my probe is detachable, so I cant use it when actually printing

@bondus Thanks, i'll certainly give that a try. Do you not suspect the rods at all?

Such a shame as otherwise it is a very well put together machine.

@dc42 If that was the case, would that indicate an issue with the belts or the toothed pulley?

Bit tricky to tell but they look around 4mm

Left is 0.4, right is 0.8 width. I had a brainwave and converted it from a flying extruder to a full bowden. Unfornately it didn't make a blind bit of notice

I would guess standard 1.5A

@dc42 I've tried all the 'magic' numbers, doesn't seem to make any difference

0.0809, 0.1618, or 0.3236
0.1294, 0.2589, 0.3883
0.2 even 0.2589

No idea what the rated current is, the motors have no markings on them

Some more examples

@dragonn That could be the answer, thanks! It's a belt driven delta yes

@dragonn I already have it in there, but it's set too 200mm/s (nice speed for homing), I don't want to print at that speed though.

How do we define the max speed when printing? I use slic3r which unfortunate doesn't allow you to set the Z speed and as a result, it moves far too fast on z hop moves.

Thanks dc42, got it working in the end

M400; Wait for current moves to finish
M915 P3 S2 F0 R0; set stall detection threshold
M913 E90; reduce the motor current
M83; relative extrude
G1 S1 E500 F3000; fast extrude
M400; wait for current moves to finish
M913 E100; restore motor current
G1 E20 F300 ; extrude slowly 20mm of filament

Getting there, it now does the fast load - stalls but doesn't stops loading - then loads the slows part

This is my revised macro. Just need to figure put why it isn't stopping when the motor stalls now

M400; Wait for current moves to finish
M915 P3 S10 F0 R0; set stall detection threshold
M913 E90; reduce the motor current
M83; relative extrude
G91; set relative motion required for delta
G1 S1 E500 F3000; extrude
M400; wait for current moves to finish
M913 E100; restore motor current
G1 E50 F300 ; extrude slowly 50mm of filament
G90; restore absolute movement

Thanks, I suspect it's the fact I didn't set any M915 values. I'll also give your code a go.

Maybe a daft question but is there anything else I need to do to enable sensorless loading? Maybe i'm missing something in my config.g file?

@dc42 Duet WiFi 1.02 or later

Firmware: RepRapFirmware for Duet 2 WiFi/Ethernet 2.03RC2 (2019-05-14b2)

Duet WiFi Server Version: 1.22

@carlosspr said in Filament loading with stall detection macro issue:

maybe you need to enable cold extrusion with M302 P1 and afterwards disable with M302 P0

I don't want to do this cold. I preheat the hotend