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Donate to Erik CederbergBelt Geared UM2 Feeder Upgrade
A 1.8:1 Belt Geared Feeder Upgrade for the Ultimaker 2 feeder.
3D printer parts and enhancements
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Description
This is a bolt-on upgrade for the UM2 with a belt-drive, it does increase the pushing power of the relatively weak UM2 Feeder motor, and also remove the thermal coupling between the feeder motor and the knurled bolt, since it has been shown that excessive temperatures at the bolt caused by high current can decrease the performance of the feeder.
It functions as a gearbox that moves the knurled bolt a few centimeters outwards and upwards, and provides a new nema17 hole pattern which means that it will work with any feeder that is designed for the standard feeder position at the UM2, including the IRobertI feeder and the original UM2 feeder, it gives you a gearing of 1.8:1 and removes almost all thermal coupling between the motor and the knurled bolt.
The only change needed to use this geared feeder upgrade is to change steps per mm in Marlin to the original value times 1.8, thats it!
You need to print one base, one plate and two washers.
Also included in the files are a Bearing Carrier to be able to use MF105 (5x10x4mm) bearings instead of the MF695 (since i only had MF105 bearings at home while building the prototype)
If you are to use it with the |Robert| V2 feeder, it is recommended to print the feeder mirrored, that way it will not interfere with the original spool holder, this requires you to also change the direction of the feeder in the firmware. This change also have a the added feature of lowering the friction slightly in the bowden tube since the knurled surface of the filament will be on the inside instead of the outside of the bowden tube's curve.
Materials and methods
- 2pcs MF695/F695 flanged bearings
- 1pcs 5x40mm cylindrical pin
- 1pcs 20T GT2 Pulley with 5mm bore
- 1pcs 36T GT2 Pulley with 5mm bore
- 1pcs 55T (110mm) GT2 Belt Loop
Documents
Edit in 3dslash
Issues
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Comments
shuravisj60 added this to the инструмент collection ago
Justin Otherguy added this to the Ulti collection ago
MELISSA ATKINSON added this to the collections collection ago
Jens Hausherr added this to the Ultimaker2 collection ago
FerGazz added this to the Upgrades and Mods collection ago
Holden added this to the Ultimaker 2+ Add Ons collection ago
Nico Paris added this to the Ultimaker collection ago
StephanG added this to the Ultimaker 2 collection ago
nilrog added this to the Ultimaker extras collection ago
ProjectCentral added this to the UTILITY collection ago
Adam Rękosiewicz added this to the mods collection ago
Chris Branson added this to the Feeder collection ago
Luis added this to the UM2 Upgrades collection ago
Dani Epstein printed this ago
- Printed on:
- Ultimaker - The Ultimaker 2
- Result:
- Pretty impressive
CorrugatorSupercilii added this to the My Collection collection ago
Alessandro Romagnoli commented agoMeduza Hello! The timing belt and pulleys and bearings where you bought them ??? Thank you ! Alex Elvis3D
Giuseppe Talo' added this to the ultimaker collection ago
Erik Cederberg commented ago@kochmi: That should be the correct value to change, are you sure that you compiled and uploaded the firmware to the board? If you connect to the printer over USB and send a M503, what values does show under M92?
Erik Cederberg commented ago@Roland Benner: I have added a text suggesting using a reversed IRobertI feeder to fit the spool.
Erik Cederberg commented ago@reibuehl: It seems like F695 and MF695 bearings have the same outer dimensions, so they should work just fine.
And yes, all pulleys should be with 5mm bore, i will add this to the BOM.
Reiner Bühl commented agoOne more question: Would F695 ball bearings also work as MF695 seem to be very hard to source?
Reiner Bühl commented agoThe GT2 pulleys are available in 5mm and 8mm bore versions. I assume both need to be 5mm versions, correct?
Reiner Bühl added this to the Ultimaker2 collection ago
Michael Koch commented agoHi Meduza,
I built your feeder and it really works perfectly!
How can I adjust the feedrate in the firmware? I tried to change (double) the value for "steps per mm" in Ultimaker2Marlin-16.03 firmware:
define DEFAULT_AXIS_STEPS_PER_UNIT {80,80,200,564}
Where 564 is the double value.
This has absolutely NO effect.
What do I do wrong?
Thanks a lot for a short advice!
Best regard
Michael
Roland Benner commented agoHi Meduza,
this gearbox is really fantastic.
I use 2 of them because of my dual head.
The gearbox is 2cm high, to avoid collision with spools I had to swap left and right hand feeders. Load spring and lever open/close looking to outside now.
That's amazing, because I found that the knurled relief on the filament is looking to inside of the bowden, tha t reduce the friction in the Bowden.
Of course I had to reverse feeder in firmware.
Thank you
Roland
Michael Hafner added this to the Feeder collection ago
thraxis added this to the Ultimaker 2 collection agoRoland Benner added this to the UM Upgrades collection ago
viae added this to the Hardware Upgrades collection ago
JAT.MN added this to the Ultimaker Mods collection ago
HYPA Berlin added this to the UsefullUM2 collection ago
Carsten Müller added this to the Tuningparts collection ago
Keith Violette added this to the UM2 Mods collection ago
Tommy Napier added this to the Upgrades collection ago
Daniel Kachaev added this to the 3D Printers collection agoErik Cederberg published this design ago