Search models, users, collections, and posts
Achievements
MakerWorld Guardian
This badge has expired
Hey everyone, I just started printing four months ago using a H2D as my first printer. About 2-3 months ago I started having a issue with my left nozzle. I was running multiple batches of a two color print (simple "P" embedded in a circle) for a logo for a local company. I noticed that the "P" would print first using the external spool through the left nozzle, no big deal. Problem I am having is that my left nozzle would all of a sudden not print the purge line on the edge of my plate and also miss the first 1-2 inches of the print, resulting in me having to toss 1 of the "P"s off every plate (see pic for the discarded "P"s). I have an open ticket up with tech support and have been around the block with zero resolution. I am hoping someone in the community has had this problem and has a solution. Any ideas, help will be greatly appreciated!!!!
If the AMS is used first, the purge line is perfect!
If I swap the external to the right nozzle, the purge line is perfect!
They have sent me a replacement buffer and I have replaced it.
Things I have tried:
- Tried flipping filament between the AMS and external hanger, no change.
- Tried different brands of filament, no change.
- Changed out the nozzle with a brand new one, no change.
- Changed the nozzles between left & right, no change. From what I can tell, all the nozzle temps, pressures, speeds, etc arethe same (checking on the filament settings).
- Tore apart the entire nozzle to inspect if the gears were worn, damaged, clogged, etc, nothing noticed.
- Ran every calibration, bed leveling, etc on the printer after.
- Tried a different file that has some of the same two color printing
- Tried flow rate calibration
- Tried first layer adhesion calibration
Tests:
#1 - I ran on the left nozzle with the PLA filament running directly into the left nozzle with no tube in between, GTG purge line was awesome!
#2- I ran the left nozzle with the tubes reconnect, NO GO, purge line was same as problem
#3- I ran the left nozzle with the "left nozzle" tubes but "re-plumbed" to the left nozzle but the top wall port, GTG purge line was awesome!
#4 - I ran the left nozzle with the "left nozzle" tubes but in the bottom wall port, NO GO, purge line was the same as problem
#5 - NO-GO External spool routed to the LEFT nozzle via the BOTTOM buffer AMS spools routed to the RIGHT nozzle via the TOP buffer
#6 - FAILED to finish External spool routed to the RIGHT nozzle via the BOTTOM buffer AMS spools routed to the LEFT nozzle via the TOP buffer Swapped the PFTE tube connected at the top of the extruder. Re-mapped
AMS to left nozzle in printer settings. Print "failed to feed filament" error multiple times. AMS would not feed through the buffer (could see it enter the buffer on the rear but never exit via the inside port).
#7 - PASS External spool routed to the RIGHT nozzle via directly into top of extruder (bypassing the buffer and all PFTE tubes) AMS spools routed to the LEFT nozzle via the BOTTOM buffer #8 - PASS (full purge line on edge of bed & NO missing start of print) Redo of Test 5, only changed the routed of the external spool though the PFTE tubes and TOP buffer Current setup: AMS routed to LEFT nozzle via BOTTOM buffer, external hanger routed to RIGHT nozzle via TOP buffer
#9 - Swapped AMS & External spool connection at REAR of buffer External spool routed to the LEFT nozzle via the BOTTOM buffer AMS spools routed to the RIGHT nozzle via the TOP buffer NO-GO, same problem as before
Share
0
0
0
No more data