tobias.k3
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Re: TMC2130

Fri Feb 02, 2018 10:28 am

Someone did it with TMC2100 ! Pretty good job:

https://www.facebook.com/groups/Prusai3 ... 179223931/

https://vmod.wordpress.com/prusa-mk2s-ext-driver-board/



(I planned something like this with TMC2100 myself. I only have to find time for this.)
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PRUSA MK2
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tchad.r
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Re: TMC2130

Mon Mar 12, 2018 8:52 pm

I upgraded my Mk2S to TMC2130 following Tom's guide. I did end up switching boards, and then reconfigured vanilla Marlin firmware, so my Mk2S is presently not running the Prusa firmware (which causes a dilemma with my Mk2.5 upgrade kit, more on that in a moment).

I bought a MKS Gen V1.4 board from TwlevePro, and the 2130s from Filastruder. I then bought some cable ends for each board style and created adapter cables so I didn't have to clip the wire ends off my Mk2S hardware.

Getting vanilla Marlin working was a bit of a pain, so if anyone goes this route let me know and I'll send you my config files. I wouldn't consider them polished or 100% done, but they work, and have been for several weeks now. The main annoyance is that the change filament menu changed somewhat, and requires an extra click or two in my current firmware.

I'm now wondering if the Einsy Rambo 1.1 with TMC2130s from UltiMachine would work with the Prusa firmware. I'm assuming it's pretty close, if not an exact match, to what is shipping in the Mk3. I noticed in the Mk3 pictures that the board says Rambo 0.5, and I'm not sure how much has changed between that and version 1.1 that is available for order.

My dilemma is that I just received my Mk2.5 upgrade kit, but I'm not sure I want to screw with figuring out how to wire the new sensors to my board and figure out the firmware changes. If a Einsy Rambo 1.1 would work, I might order one of those and load the Mk3 firmware.

I'll update this with more results later, I'm still printing the printed parts for my Mk2.5 kit.

eric.k4
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Re: TMC2130

Tue Mar 13, 2018 4:53 am

tobias.k3 wrote:
Fri Feb 02, 2018 10:28 am
Someone did it with TMC2100 ! Pretty good job:

https://www.facebook.com/groups/Prusai3 ... 179223931/

https://vmod.wordpress.com/prusa-mk2s-ext-driver-board/



(I planned something like this with TMC2100 myself. I only have to find time for this.)
they did change the firmware. i soldered my wires on the under-side of the board where the stepper motor inputs are broken out, so no software changes required. you don't need to worry about silent mode, as the thing is quiet, just adjust the vref pot on the board. you can use 2130's in non-SPI mode too. there is no need to do anything to firmware or the boards if you can solder (this is a big one) and you can just run with the same firmware like usual. you're just effectively swapping the drivers. you don't need the sensor less homing or back efm/skip detection. silent is nice, and it just works.

The only exception is i used a step up converter to 24v... because motor whine at 12v. i have ones from filastruder, not chineese ones. (2100's)

tobias.k3
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Re: TMC2130

Tue Mar 13, 2018 8:57 am

Those a pretty interesting reports. Thanks!

I just received my TMC2130 drivers and see in the next weeks how to integrate them into the system. For now the cheap Chineses ones from Fysetc Model 1.0 (V1.1 comes with SPI mode as standard). Maybe I order some from Watterott when it is working.
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PRUSA MK2
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- MK2/MK3 hybrid extruder

tobias.k3
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Re: TMC2130

Tue Mar 13, 2018 10:23 am

@ eric.k4 : Can you post some pics of your board mod and the pins you soldered to?
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- MK2/MK3 hybrid extruder

simon.n2
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Re: TMC2130

Sun Mar 18, 2018 12:18 pm

I've made a "shield" to use up to four TMC2130 on the Rambo Mini.

viewtopic.php?f=23&t=14993

Any feedback appreciated.

chris.g5
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Re: TMC2130

Wed Mar 21, 2018 4:57 am

This TMC2130 thing is a real dilemma for MK2 owners. Has anyone experimented with a dual voltage setup. Would that allow running MK3 Firmware on an Einsy board?

simon.n2
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Re: TMC2130

Mon Mar 26, 2018 2:54 pm

chris.g5 wrote:
Wed Mar 21, 2018 4:57 am
This TMC2130 thing is a real dilemma for MK2 owners. Has anyone experimented with a dual voltage setup. Would that allow running MK3 Firmware on an Einsy board?
It should run wihtout any issue with the Einsy board, especially when you have the 2.5 upgrade. I will report on it as soon as I have the 2.5 upgrade.

eric.k4
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Re: TMC2130

Mon Mar 26, 2018 3:35 pm

tobias.k3 wrote:
Tue Mar 13, 2018 10:23 am
@ eric.k4 : Can you post some pics of your board mod and the pins you soldered to?
someplace. they're under the board and marked. they're tiny pads... you can see them through the holes in this image (they're upsidedown) - EEN,EDIR,EREF would be extruder, then there is X,Y and Z EN, DIR, REF pads too. REF is for the current (it's a pwm signal). you can skip that if you tune them via the pot on the board or use ISP which would need to connect to some other pins on the top of the board.

Image

Olef
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Re: TMC2130

Tue Mar 27, 2018 5:57 am

chris.g5 wrote:
Wed Mar 21, 2018 4:57 am
This TMC2130 thing is a real dilemma for MK2 owners. Has anyone experimented with a dual voltage setup. Would that allow running MK3 Firmware on an Einsy board?
(Cross posted)

I completed mine yesterday. I now have a Mk3 with the Einsy RAMBo in a Haribo 3030 extrusion frame, running a Mk2.5 12v heated bed with removable sheet. The bed is running off a 12v Mk2S PSU and the rest of the printer is running off a 24v Prusa PSU. Both PSU's are mounted on the frame and because neither is under full load they both stay cool and should last a while. I supply the Einsy with 24v only and switch an external MOSFET board which the 12v PSU is linked to for the bed.

The printer is gorgeous. It is as quiet and well behaved as my Mk3, all the Mk3 features are turned on and I am running the latest 3.1.3 Mk3 firmware and loving the removable steel sheet bed.

Now I just need to wait for the powder coated sheets so I can get two of them for my vouchers and free shipping!

Working out the full Mk3 conversion with the 2.5 bed was well worth it. I wonder if I have the 1st Mk3 Haribo Mod?

:)

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