Ramps and TMC2100 March 06, 2018 10:14AM |
Registered: 6 years ago Posts: 13 |
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If the jumpers set it to a higher number of micro steps than supported by the driver it will operate at the maximum number of micro steps for that driver. For now the default is maximum micro stepping (all jumpers installed under drivers), which results in 1/16 micro stepping for A4988 drivers and 1/32 for DRV8825. Although for efficiency and accuracy you should opt for the biggest steps that will yield sufficient resolution. Eg. you don't need 5000 steps per millimeter and micro-steps less than 1/16 have reduced torque per step, reduced accuracy and higher driver load].
Re: Ramps and TMC2100 March 06, 2018 10:36PM |
Admin Registered: 13 years ago Posts: 7,001 |
Re: Ramps and TMC2100 March 07, 2018 02:26AM |
Registered: 8 years ago Posts: 5,232 |
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Dust
I dont know why we bother putting info in the wiki... no one ever looks at it!!!
[reprap.org]
Re: Ramps and TMC2100 March 07, 2018 04:16AM |
Registered: 6 years ago Posts: 13 |
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o_lampe
Quote
Dust
I dont know why we bother putting info in the wiki... no one ever looks at it!!!
[reprap.org]
Maybe, if all Wiki documents were YT-videos...
Re: Ramps and TMC2100 March 07, 2018 04:45AM |
Admin Registered: 13 years ago Posts: 7,001 |
CFG1 CFG2 MicroStepping Interpolation Mode VCC VCC 16 µ-steps none spreadCycle GND open 16 µ-steps 256 µ-steps spreadCycle open open 16 µ-steps 256 µ-steps stealthChop
Re: Ramps and TMC2100 March 07, 2018 05:44AM |
Registered: 6 years ago Posts: 13 |
Re: Ramps and TMC2100 March 07, 2018 10:17AM |
Registered: 8 years ago Posts: 5,232 |
Re: Ramps and TMC2100 September 05, 2018 02:07PM |
Registered: 7 years ago Posts: 47 |
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Dust
Look again at the link
In the middle is a HUGE table
Please get glasses or learn to read.
But since you wont... there are three options for 1/16th microstepping
CFG1 CFG2 MicroStepping Interpolation Mode VCC VCC 16 µ-steps none spreadCycle GND open 16 µ-steps 256 µ-steps spreadCycle open open 16 µ-steps 256 µ-steps stealthChop
CFG3 is also left off...
So all jumpers off is what most people want.
If you dont want the Interpolation put jumpers on CFG1 and CFG2
NB CFG1 has a pull down to gnd on most ramps. So it will use spreadCycle unless you actually remove the pin from the driver module (or remove the resistor on the ramps)
Re: Ramps and TMC2100 September 06, 2018 05:59PM |
Registered: 6 years ago Posts: 140 |