BTT TMC5160 Stepper Motor Driver - UltraQuiet, SixPoint, StallGuard2

If you’ve ever explored the vast world of Stepper Drivers and how they actually operate, you’ll know that it’s a complex world, demanding high precision and intense formulas. Fortunately, as complex as this world is, we end-users don’t need to really worry too much about how they work, but rather just and how we can get them to work in the ways we need. This is the beauty of the Trinamic TMC Drivers and Pololu StepStick combination, as it takes all of the complicated workings of stepper drivers and simplifies them into relatively standardised drivers that are perfect for applications like 3D Printing, CNC machines and other hobbyist use cases.

These TMC5160 Drivers from BigTreeTech utilise the powerful TMC5160 driver with the Pololu StepStick design, offering a relatively beefy power output for hobbyist applications, while also adding a few cool features that boost its performance. These drivers are most commonly used with the BTT SKR V1.4 Range, as well as the BTT002 Motherboard and the BigTreeTech SKR Pro, and are designed to bring a range of cool features along with good power, for an effective, efficient and surprisingly convenient end user experience.

The Key Features of TMC5160 Stepper Motor Drivers:

With a name that’s noticeably different to the TMC21xx and TMC22xx ranges, it’s a little bit surprising to see that the BTT TMC5160 doesn’t have any unique new features. However, after testing and learning more about these drivers, it’s easy to see that these aren’t meant for new fancy features, but rather for high power delivery, being capable of up to 40V @ 4.4A Peak and 3.1A RMS. This is a crazy amount of power for 3D Printing, possibly opening up new opportunities for stronger, faster or a higher number of Stepper Motors, with this power also being complemented by some of the great features that have given TMC such a highly regarded name in the world of stepper drivers.

So let’s take a look at some of those features now:

• StallGuard2: StallGuard is a clever Trinamic-patented tech’ that is able to ascertain real-time sensorless feedback from the motors, which is typically caused by EMF and excess current. This allows you to technically utilise the motors as sensors, eliminating the need for end switches, as StallGuard2 can simply detect when the motors stall after reaching the end of their travel path. This is also more precise than simple end switches, as instead of a Yes/No kind of feedback, they get variable feedback from the motors depending on the speed, torque and other forces involved in the process. However, it must be noted that StallGuard2 can’t be used in conjunction with StealthChop (only StallGuard4 is capable of this), but it CAN be used on conjunction with SpreadCycle, which performs quite similarly to StealthChop, but doesn’t have quite offer the same level of smoothness throughout the entire torque range.
  
  
• StealthChop2: If you already know what the original StealthChop is, and the awesome benefits that it offers, then you will hopefully be just as excited as we are with the new StealthChop2, which is similar to original, but integrates a current pre-regulator to avoid overcompensation of step prediction, while allowing for more torque during acceleration phases. And while this may sound complicated at first, what it translates to is fewer missed steps or overshot steps, as well as a higher level of power even when motors are caught in an odd rotor position. This means more reliability and more predictability for your motors, and of course the awesome near-silent operations that both StealthChop and SpreadCycle are well-known for.
  
  
• SixPoint Ramp Generator: With most stepper drivers, you typically have to define their settings before even letting them loose, and if you want to change which motion profile they follow, you need to turn everything off and redefine them again. Of course, there are some stepper drivers that allow for configuration over UART and even WiFi, in such cases, you still have to stop printing – or at least stop the current action – to get the best motion profile for whatever part you’re busy printing. However, with the fantastic new SixPoint Ramp Generator that has been built into this driver board, you can enjoy all of the best aspects of all of the best features, as it can generate a custom motion profile for each action, with up to six different motion profiles spliced in together, to give you the absolute best from every TMC feature. Of course, just this explanation can’t do it justice, and if you’re eager to really dig in deep into how this works, we encourage you to check out page 81 in the TMC5160 datasheet, and simply enjoy the amazing way that Trinamic have utilised and optimised all of their best features for a truly amazing result.

Additional Resources:

• As always, the best place to start when looking at a new stepper driver to install into your 3D Printer is the official BTT TMC5160 V1.0 GitHub Page, where you can find the user manual, hardware notes and other handy resources.
  
  
• If you’re looking for more basic information, check out this Trinamic SilentStepStick Drivers Page, where the most popular driver boards are compared against each other, listing some of the cool features that each offers.
  
  
• If you’re struggling to figure out how to install or operate these drivers, or are simply eager to find out more about the ever-awesome Trinamic brand, be sure to check out the Trinamic YouTube Channel, where they feature instructional, informational and also fun videos regarding all of the projects they’re involved in.
  
  
• Finally, although the models features on this site aren’t exactly the same as what we have in stock, this FYSETC Stepper Drivers Wiki Page offers a wealth of great information and insight into many of the popular TMC stepper drivers with StepStick breakout boards.