kisslicertalk.com

Kisslicer 1.5 Beta 2.0 (and was same in 1.5 Beta 1.14)
Printer: spiderbot dual head

Problem: when changing heads my system primes before moving to prime/wipe location

With single pillar: my system first primes with no change in xy position (so wherever the last layer ended), then moves to the prime/wipe pillar and wipes. With short wall: same symptoms.

Is this normal or have I got a config problem somewhere ?

r/Andrew

My CubeX does the same thing - the first is the printer firmware doing the prime, and the second is the Kisslicer doing the prime pillar.
I would love to find a way to reduce the amount of prime that occurs due to the printer - oftentimes with a small print the filament usage is about 80% prime and 20% part.

Thanks fo rthe response. I don't think my firmware calls for a prime so I had a look at the Gcode.

I think the problem may be more in this area of Kisslicer generated Gcode, it wants to extrude 8mm of filament as a "start" whenever the extruder is changed.

; Select tool
T0
;Initialise Extruder
G92 E0
M109 S235
;Extrude 8mm for Start
G1 E8.0 F300
;
G92 E0
;
;
; 'Prime Pillar Path', 1.9 [feed mm/s], 30.8 [head mm/s]
G1 X4.37 Y-16.69 Z3.48 E0 F7200
G1 X4.37 Y-16.69 Z0.48 E0 F4800
G1 X2.93 Y-15.99 E0.1014 F1845
G1 X1.39 Y-15.52 E0.2027
G1 X-0.2 Y-15.28 E0.3041

Unless there is a control option to set this somewhere, this seems to be a bug to me, surely when changing heads the first thing to do would be to move away from your object, then change heads, then extrude a lump of cooked filament prior to prime/wiping ?

r/Andrew

So how does your "Select extruder" code in KISSlicer look like? Can't you just add a G1 X<NEXTX> Y<NEXTY> before priming?

Hi Dreide,

Looks as if that is the problem area and thanks very much for your suggestion, now I just really need to determine a good dump location on a Spiderbot.

r/Andrew