VC4 LDO Orbiter 2 Funky Extruder
Getting constant extrusion problems with the kit orbiter 2 as it stalls out. Running a command to extrude 100mm and it works fine but stalls out. Didn’t change or touch the extruder and pressed extrude 100mm again and it works until stalling again lol… any advice on what might be causing this?
10 Replies
I would check that the PTFE tube is secured tightly at both ends, that the filament roll is moving freely and that you've tightened the tension on the extruder.
Also, grab some small zip ties and tie that loose cable to the small mounts on the side of the toolhead!
I did and everything is on point. Even the ptfe within the extruder and hotend. The problem seems to be as soon as the speed picks up on the prints when the infill starts. Any idea what’s going on?
What temperature and filament are you using?
If the hotend can't melt fast enough, the extruder won't be able to push it through
What's your fan speed at. Had similar issue when I had the fan speed to high for pla
Did you check the gears? On my case, the passive gear was jammed due to the plastic spacer that was to tight on the axis.
I gently increase the tolerance using a power tool a d the axis itself, and then my extrusion problems simple gone!
Been super busy and just got back to this. Im printing PLA at 220-225C at standard speeds to start (150-250). I had a VZbot for awhile now so im familiar with the melt capacity and cielings for hotends but decided to bump up bigger and this extruder/hotend has been a nightmare.
Fan is kicked on with PWM so i don;t think the cooling is to blame atm :/
I will try that out! THank you!
Try cool fan speed at 70%
Well, without the silicone sock you won´t be successful with any print.
As we can see in your videos, the extender nut is completely visible. That tells me that you don´t use the sock.... bad decision... 😉
https://www.aliexpress.com/item/1005005984243584.html?
I set max speed to 20 mm3/s. Also make sure your filament path is good. For tension on the orbiter arm, tighten all the way down on the filament then 1/2-1 turn out.
The reason for this likely stems from your hot end, not your extruder... Plastic already in the nozzle has been sitting there for a bit and has fully melted... Then you try to push a bunch of filament through very quickly... The cooler filament coming in both cools the nozzle slightly as well as not having enough time to fully melt... Extruder just can't push it through at the rate you are asking and it skips
This happens to me also when loading filament, but doesn't happen at all during prints as the feed rate is much lower when printing
I typically raise the nozzle temp +20c over print temp when loading filament