3D Printing Stack Exchange
3D Printing Stack Exchange

Questions tagged [drive-gear]

8 questions
8
votes
3 answers

Filament Guides Drag

Backstory I've had issues in the past with my drive gear "eating" my filament. It seemed that the filament quit extruding for one reason or another and the drive gear would slowly eat away at the side of the filament. I eventually assumed it was the…
tbm0115
  • 6,234
  • 2
  • 18
  • 40
6
votes
2 answers

What are the appropriate ranges of gear ratios for 1.75 mm and 3 mm filament extruders?

Most 3 mm (mostly are actually 2.85 mm) filament extruders have some kind of gear reduction. Many 1.75 mm extruders are direct-drive / ungeared but some do use gears. What kind of reduction ratios are suitable or optimal?
Ryan Carlyle
  • 6,456
  • 2
  • 13
  • 33
6
votes
4 answers

Good methods to clean extruder gear (hobbed) from filament pieces?

I'm using a CraftBot original to print PLA, but some of the filament has become stuck in the teeth of the extruder gear on its way into the hot end. I'm having issues with the gear becoming stuck and "clicking" instead of turning, and I suspect it…
emackey
  • 382
  • 2
  • 5
  • 13
2
votes
1 answer

What are the effects of backlash from a geared stepper motor used to drive a filament extruder?

Question background: I am building an extruder / hotend combination to be used with 2.85 mm filaments. The extruder I chose is QR Extruder from Bondtech which comes with a stepper motor, with an integrated planetary gear system and a reduction of…
Phil
  • 153
  • 4
1
vote
3 answers

Air printing/jamming midway through raft creation

For a school project, my teacher gave me a brand new Longer 3D printer to create parts with. After one good job, the printer cannot get past the raft creation without air printing. The thickness of the printed filament tapers down until no filament…
Chris Howe
  • 111
  • 4
1
vote
2 answers

Dual extruder with gear shifting

I am planning to upgrade my printer with a second extruder. Since my printer is a Tronxy X8 it's frame is not exactly vibration resistant, so I'd like to keep the print head weight down. At the same time I really don't want a Bowden setup. I came up…
Dakkaron
  • 145
  • 4
1
vote
1 answer

When to use an anti-backlash bolt for a Z drive gear?

I am building an HEVO printer with a 300x300 build plate and the project includes two T8 lead screws, lead 8 mm ("Tr8x8(p2)"). I read that such long lead may worsen backlash issues, so anti-backlash bolts are often used. They however increase the…
FarO
  • 3,906
  • 13
  • 31
0
votes
0 answers

Printer does not advance the filament

Printer: Creality CR10S 300 Filament: PLA or PCL (polylactic acid or polycaprolactone) Problem: The gear that grabs the filament and moves it forward/back does not turn at all. How to fix that?
Sergey P.
  • 1