TMC 2130 Stepper Drivers: Difference between revisions
Jump to navigation
Jump to search
| Line 34: | Line 34: | ||
=And What About TMC2208?= | =And What About TMC2208?= | ||
*https://www.instructables.com/id/UART-This-Serial-Control-of-Stepper-Motors-With-th/ | *Yes! Drop-in replacement that is quiet, with Stealthchop2. [https://www.youtube.com/watch?v=7VHwcEroHPk]. Requires firmware upgrade. Question is if the torque is acceptable. | ||
*TMC2208 Instructable - [https://www.instructables.com/id/UART-This-Serial-Control-of-Stepper-Motors-With-th/] | |||
*Yes, can get quiet operation as drop-in replacement, no modification needed outside of small firmware change, but not sensorless homing. [http://marlinfw.org/docs/hardware/tmc_drivers.html] | *Yes, can get quiet operation as drop-in replacement, no modification needed outside of small firmware change, but not sensorless homing. [http://marlinfw.org/docs/hardware/tmc_drivers.html] | ||
Revision as of 22:43, 15 April 2019
Wire Via SPI for Stealth Mode
- Solder certain bridges on the driver - not easy
- Change Marlin code in configuration_adv.h
- Need to change pins_RAMPS.h file to tell which pins are being used
- Debug allows M122 in serial monitor for status
- Define sensorless_homing in config_adv !!! This is useful.
- Disable endstops_pullup for sensorless homing
- M914 in sensorless homing determines sensitivity of sensorless homing
- Need to upgrade to Marlin 1.1.9 from 1.1.0 to do sensorless homing.
Analysis of Torque
- According to test results at 36V - the torque is great in Stealth Mode up to to 250mm/s - [1]
Wiring Detail
Source 1
- If smart controller is on Aux 3 - need to wire into Aux 2 headers - see Step 4 at [2]. Disclaimer - author questions validity of LCD working with TMC2130
- Covers 3 parameters set in software - sensitity to bump stop; holding torque; conversion from 16 to 256 microsteps
- Stealth chop gets you less power - how much less? Less speed. Unacceptable for fast bulk prints on large printers
- Can run in hybrid mode to set Stealth mode only below a certain speed, and high speed is noisy.
- Nothing about solder bridge on the driver to select mode?
Source 2
- Chris Riley - [3]5
- Step, Dir, Enable pins face down [4], 4 pins up. Diagnostic pin goes up [5].
- Sacrifices LCD for this install. SDRAMSP supports is commented out [6].
- Diagnostic pin goes to the end stop signal (rightmost). So effectively, we have to solder one pin on the TMC2130 to replace the end stops. That is worthwhile.
- Set x and y home bump to zero when using sensorless homing in config.h - [7]
- Install the TMC2130 library via Sketch -> Include library -> Manage libraries... But which version?
- Need cooling fans - [8]
- For the pins that we reassign - make sure you don't steal them from EXT2 if you are using the second extruder steppers [9].
And What About TMC2208?
- Yes! Drop-in replacement that is quiet, with Stealthchop2. [10]. Requires firmware upgrade. Question is if the torque is acceptable.
- TMC2208 Instructable - [11]
- Yes, can get quiet operation as drop-in replacement, no modification needed outside of small firmware change, but not sensorless homing. [12]
Links
- Marlin docs on TMC2130 - [13]
- New: Marlin docs including TMC2208 - [14]
- Hackaday post - summary is that it's a job to configure properly - [15]
- Prusa forum - good list of references - and explanation of low torque is 12v operation instead of 24 or higher. 1A at 24V only is required to run all stepper motors??? [16]. See first response, Hardware point #9.
Sourcing
- TMC2209 are quiet, but no endstopless operation. Better torque - [17]