# Sensorless Homing with the TMC 2240 drivers **URL:** \ **Category:** General Discussion\ **Created:** [November 7, 2023, 6:58pm UTC](https://klipper.discourse.group/t/sensorless-homing-with-the-tmc-2240-drivers/11438 "2023-11-07T18:58:51Z")\ **Posts on this page:** 8\ **Page:** 3
**Author:** ![DrumClock](https://yyz2.discourse-cdn.com/free1/user_avatar/klipper.discourse.group/drumclock/32/177_2.png) [@DrumClock](https://klipper.discourse.group/u/DrumClock)\ **Post date:** [November 13, 2023, 6:11pm UTC](https://klipper.discourse.group/t/sensorless-homing-with-the-tmc-2240-drivers/11438/41 "2023-11-13T18:11:52Z")
the 600 mm/s is only a rapid movement of the toolhead, not printing, it will run around 200 mm/s ---
**Author:** ![mykepredko](https://yyz2.discourse-cdn.com/free1/user_avatar/klipper.discourse.group/mykepredko/32/2085_2.png) [@mykepredko](https://klipper.discourse.group/u/mykepredko)\ **Post date:** [November 13, 2023, 6:16pm UTC](https://klipper.discourse.group/t/sensorless-homing-with-the-tmc-2240-drivers/11438/42 "2023-11-13T18:16:15Z")
I think the simple solution (after all you’ve been through) is to not move the toolhead that fast. ---
**Author:** ![LifeOfBrian](https://yyz2.discourse-cdn.com/free1/user_avatar/klipper.discourse.group/lifeofbrian/32/2380_2.png) [@LifeOfBrian](https://klipper.discourse.group/u/LifeOfBrian)\ **Post date:** [November 13, 2023, 7:13pm UTC](https://klipper.discourse.group/t/sensorless-homing-with-the-tmc-2240-drivers/11438/43 "2023-11-13T19:13:33Z")
So to sum this up: you just did not try the right SGT value before or was there anything I missed here? ---
**Author:** ![hcet14](https://avatars.discourse-cdn.com/v4/letter/h/ecd19e/32.png) [@hcet14](https://klipper.discourse.group/u/hcet14)\ **Post date:** [November 13, 2023, 7:25pm UTC](https://klipper.discourse.group/t/sensorless-homing-with-the-tmc-2240-drivers/11438/44 "2023-11-13T19:25:14Z")
> [@DrumClock](#): > > I don’t know why @hcet14 keeps referring to TMC 2130 Sorry about that, just called my old parents. That always confuses me. > [@hcet14](#): > > Can you do me a favor and try something around 0. Maybe 2? The second important thing is using DIAG0. Also see [GitHub - andrewmcgr/klipper\_tmc\_autotune: TMC stepper driver autotuning Klipper python extra](https://github.com/andrewmcgr/klipper_tmc_autotune) ---
**Author:** ![mykepredko](https://yyz2.discourse-cdn.com/free1/user_avatar/klipper.discourse.group/mykepredko/32/2085_2.png) [@mykepredko](https://klipper.discourse.group/u/mykepredko)\ **Post date:** [November 13, 2023, 8:25pm UTC](https://klipper.discourse.group/t/sensorless-homing-with-the-tmc-2240-drivers/11438/45 "2023-11-13T20:25:28Z")
@DrumClock Just looking at your table: ![image](https://global.discourse-cdn.com/free1/uploads/klipper/original/2X/9/9dbb24d75ff445fdeaf6f71309ab98de2c114d7a.png) and I was thinking you might want to expand your variables a bit - try 0.6A for your run\_current and 25 for your homing\_speed. These are the values that I am using and I’m getting a better range of values where StallGuard works instead of the single value that you’re getting. ---
**Author:** ![DrumClock](https://yyz2.discourse-cdn.com/free1/user_avatar/klipper.discourse.group/drumclock/32/177_2.png) [@DrumClock](https://klipper.discourse.group/u/DrumClock)\ **Post date:** [November 14, 2023, 6:30pm UTC](https://klipper.discourse.group/t/sensorless-homing-with-the-tmc-2240-drivers/11438/46 "2023-11-14T18:30:05Z")
HI @mykepredko ¨ so I did more tests and it’s the same, just too sensitive. the best combination is marked “green” -Petr ![image](https://global.discourse-cdn.com/free1/uploads/klipper/original/2X/3/3c1507a090e5614597a10385bdb4b05c2f37beae.png) ---
**Author:** ![mykepredko](https://yyz2.discourse-cdn.com/free1/user_avatar/klipper.discourse.group/mykepredko/32/2085_2.png) [@mykepredko](https://klipper.discourse.group/u/mykepredko)\ **Post date:** [November 14, 2023, 6:32pm UTC](https://klipper.discourse.group/t/sensorless-homing-with-the-tmc-2240-drivers/11438/47 "2023-11-14T18:32:44Z")
Interesting that the chip is that sensitive to only have one working value for sensorless homing. I don’t know what else to say other than I’m happy things are working for you. ---
**Author:** ![system](https://global.discourse-cdn.com/free1/uploads/klipper/original/1X/64419bf2aac6639e6ef5cef200dcd456b0a01ac3.png) [@system](https://klipper.discourse.group/u/system)\ **Post date:** [December 15, 2023, 4:33am UTC](https://klipper.discourse.group/t/sensorless-homing-with-the-tmc-2240-drivers/11438/48 "2023-12-15T04:33:19Z")
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