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Trinamic Motor Controller


#1

Hello,

Does Pololu have any plans to offer a Stepper Controller based upon the Tinamic TMC5130, 40 or 60 series controller/driver chips?

Best,

Mike


#2

Hi, Mike.

We have no specific plans to do anything with those drivers at the moment. Can you tell me what features you like about them? Are you looking for something like a Tic Stepper Motor Controller based on those, or something else?

- Ben


#3

Hi Ben,

Thanks for the reply.

I like the ability to use the features of these Trinamic chips to help subdue vibrations in the linear rails I use (THK KR15, KR20 and KR26) for a macro imaging system I’ve developed and continuing to evolve. I want to reduce the time between capturing images and now must wait for the motor/rail/camera/lens vibrations to subside which are a consequence of moving the camera/lens a short distance, usually 3~50 microns. Some of my image sessions capture ~6000 individual images and produce a single final rendered image of ~20,000 by 15,000 pixels (300MPixel) and will going to 30,000 by 20,000 (600MPixel). Now I must wait quite a few seconds between images, and thus the overall session is very lengthy! Also like the ability to quench the audible noise from the motors at certain micro-step sizes.

Since these chips have a micro controller builtin, it seems interfacing to them is almost as simple as the superb TIC stepper controllers you offer (I have 9 TIC-500s, and 5 of your DRV8825 drivers, plus some others).

Best,

Mike


#4

Thank you for the additional information; that sounds like a very interesting application! What are you using currently in your system?

I see that Trinamic already makes breakout boards for TMC5130 and TMC5160 (I am not familiar with the TMC5140 and I don’t see that listed on Trinamic’s site). What are you looking for that these boards do not already offer?

By the way, in case you aren’t aware, we recently discovered an issue with our Tic T500 controllers. If your units are the original tic03a version, we can arrange for free replacements if you email us with your order information.

- Ben


#5

My system is comprised of 3 different setups, one vertical, one horizontal and one which can configured as both vertical or horizontal. I’m using THK KR20 and a KR26 equivalent linear rails with 400 step motors (NEMA 17) for driving the camera/lens (Nikon D850 or D800E or D500) with custom lens configurations. I use 2 THK KR15 linear rails with 200 step motors (NEMA 11) to move the subject (silicon chips we design). A Raspberry Pi 3B + was selected as the main control computer and Tic-500 as the motor controller/drivers. You can see some of the setups below, including the Tic-500s. Note that I (mawyatt) mention the Tic-500 often, and very favorably!!

https://www.photomacrography.net/forum/viewtopic.php?t=38353

https://www.photomacrography.net/forum/viewtopic.php?t=38511

https://www.photomacrography.net/forum/viewtopic.php?t=38512

https://www.photomacrography.net/forum/viewtopic.php?t=38548

https://www.photomacrography.net/forum/viewtopic.php?t=38604

Here’s a link that shows an early test image of a silicon sliver from a broken silicon wafer. Be sure to download the last image " Another S&S Test Image of Old Silicon Wafer Sliver" to see the full resolution

http://img.gg/10oj9Jm

I have images much better than these simple test images, but they are proprietary.

Best,

Mike


#6

Hi Ben,

“I see that Trinamic already makes breakout boards for TMC5130 and TMC5160 (I am not familiar with the TMC5140 and I don’t see that listed on Trinamic’s site). What are you looking for that these boards do not already offer?

I didn’t directly address your question, “what the Trinamic boards do not offer?” I’m using the USB interface on the Tic-500 and would prefer to continue to use USB which the Trinamic boards do not offer.

Best,

Mike


#7

It seems like you could just get that with a USB-to-serial adapter. Are you just looking for a single board that combines an adapter like that with a Trinamic driver, or is there some additional functionality you would be looking for?

- Ben


#8

Trying to keep things simple on the hardware and software side, so yes a single board solution, or better yet a 3 axis control board with USB interface would be ideal!!

Have you done any evals with the with the Trinamic TMC5130? I’m really interesting in seeing if they can reduce or eliminate the motor/rail movement induced vibrations of the rail/camera/lens to a level where I can substantially reduce waiting times.

Best,

Mike


#9

We haven’t done much with Trinamic drivers yet, so I’m not sure what you can expect. If you decide to try it, you might start just with a separate USB adapter and Trinamic’s basic eval board to see how it works for you. I would definitely be interested to hear your results.

- Ben