I hope someone can help me out, I keep getting these gaps between print layers around print’s I’ve been doing. Since I got the snapmaker I’m yet to get a print that doesn’t have this even occasionally.
Multiple different filaments have been used. I’ve checked the gear and the nozzle.
I’ve changed temperatures from 190° - 220° in increments of 5°. I’ve checked that the filament isn’t getting tangled and seems to be feeding in fine.
I’ve changed print speeds and resolution to lower resolution and higher resolution. I just can’t figure it out.
Not only does it detract from the looks of the object the strength is severely weakened. Some of the prints tear apart like I’m tearing paper at these points.
I hope not but possible, I did have issues with the CNC module and it needed to be replaced. The motor wouldn’t turn on at all after 30 minutes of use.
Back to the 3D printer head when using the G1 E100 F300 code after cleaning the gear and extruder head once again. It is still doing different amounts each time with no settings changed, at one point it even went backwards and spat the filament out of the top of the module.
From your images I would say that you have excessive retraction settings. If you are using the Snapmaker default setting in luban it is far too much. Try setting retraction distance to 1-2mm and retraction speed to 20-35mm/s.
Your problems in getting consistent extrusion would suggest to me that either your nozzle is partially blocked or your extruder gear is gummed up with plastic shavings. Open up the door on the front of the module and use compressed gass or a tooth brush to remove any plastic that has built up on the gear. After this try feeding filament through the print module (when heated to a reasonable temp for the plastic you are using, I would suggest going high at 240C) by hand. If there is difficulty in doing this you might have a partial blockage. If so, try swapping your hot end for the spare and see if that solves the problem.
If it does, there are plenty of guides online on how you can unblock the other hot end you removed.