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06-27-2016, 02:56 PM #1
Question for Stepper Motor Experts
I put together a Folger Tech i3-2020 printer. And of course, I started making changes to it. I added a servo to kick down a Z-Probe. And because my previous printer used 3mm filament, I want this printer to be 3mm instead of 1.75mm. (Incidently... The 1.75mm filament worked great. This kit is really worth the money which is an exact opposite of what I would say about Geeetech's printer kits!)
In order to switch to 3mm filament I ordered "3mm Wire Feed Device Kits for Makerbot MK8/MK9 extruder" and the "3mm Throat Tube Pipes With Teflon" at these link addresses:
http://www.ebay.com/itm/281903889879...%3AMEBIDX%3AIT
http://www.ebay.com/itm/322048059374...%3AMEBIDX%3AIT
Everything switched over pretty easily. But when I started some test prints, I can see the filament stepper motor is losing steps. I tried turning up the power on the extruder's Step-Stick, but that did not fix the problem.
So, right now I have a higher torque NEMA-17 Stepper Motor on order. The existing stepper motor is 36 oz. inches of torque. The one on order has 78 oz. inches of torque (and is at this link):
http://www.ebay.com/itm/111827476477...%3AMEBIDX%3AIT
My questions for the Stepper Motor Experts are:
- Is it likely I can fix my problem with a Stepper Motor that has higher torque ?
- Will the motor produce higher torque with the same current or will the current have to be set higher to the motor?
- Can I get a higher current version of the Step-Sticks than the standard version? (I've got the A4988 Step-Sticks)
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06-27-2016, 11:43 PM #2
- Join Date
- Jun 2014
- Location
- Burnley, UK
- Posts
- 1,662
yes
no yes
I don't think so but they should handle it
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06-28-2016, 08:33 AM #3
THANK YOU SO MUCH FOR THE HELP Mjolino!
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07-02-2016, 05:32 PM #4
- Join Date
- Jan 2015
- Posts
- 36
Typically you need a geared extruder for 3mm filament,I use a bulldog xlnt, however the Greg's wade extruder(reloaded) is also an excellent choice.
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07-07-2016, 02:29 PM #5
- Join Date
- Jul 2016
- Location
- Pennsylvania, USA
- Posts
- 255
Hi
The higher torque motor likely will step pretty slowly if run on a "normal" 12V system. You will be back to missed steps, but for a different reason.
Bob
Holes and pockmarks in print walls
06-04-2024, 09:14 AM in General 3D Printing Discussion