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How to reduce vibration?
12-24-2019, 01:35 PM
Post: #1
How to reduce vibration?
Hey - love the product and the build, but I have found that there are some vibrations when the camera is in motion. This is fine for timelapses with high shutter speeds but it won't be good enough for astrophotography or anything in real time.

Has anyone got ideas on how to reduce the vibration? Either in code or something in the build?
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12-24-2019, 07:23 PM
Post: #2
RE: How to reduce vibration?
What stepper drivers are you using?
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12-26-2019, 10:31 AM
Post: #3
RE: How to reduce vibration?
Use the TCM2208 stepper motor drivers. They are silent and "interpolate" steps so the vibration will be drastically reduced.
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12-27-2019, 07:28 AM (This post was last modified: 12-27-2019 07:30 AM by chrismhs.)
Post: #4
RE: How to reduce vibration?
I bought the kit, so the A4988 drivers. Will get hold of a couple of TMC2208 and give it a go! Thanks!
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12-27-2019, 01:57 PM
Post: #5
RE: How to reduce vibration?
(12-27-2019 07:28 AM)chrismhs Wrote:  I bought the kit, so the A4988 drivers. Will get hold of a couple of TMC2208 and give it a go! Thanks!

Remember to place the heatsinks on the TMC, they got hot and can get damaged if they do not dissipate the heat properly
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01-19-2020, 05:50 PM
Post: #6
RE: How to reduce vibration?
First question:
Can the A4988 motor drivers simply be replaced by the TMC2208 without any changes on the code and the DEVIA control board?
If I have seen it correctly, the TMC2208 has more circuit board legs than the TMC2208 which might be in contact with the DEVIA board and cause some trouble?

Second question:
Would the DRV8825 be also a good alternative to the A4988? This replacement should be plug and play without the need to adapt anything in the code, if I know correctly.
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01-20-2020, 10:38 AM
Post: #7
RE: How to reduce vibration?
(01-19-2020 05:50 PM)maxmar Wrote:  First question:
Can the A4988 motor drivers simply be replaced by the TMC2208 without any changes on the code and the DEVIA control board?
If I have seen it correctly, the TMC2208 has more circuit board legs than the TMC2208 which might be in contact with the DEVIA board and cause some trouble?

Second question:
Would the DRV8825 be also a good alternative to the A4988? This replacement should be plug and play without the need to adapt anything in the code, if I know correctly.

Yes, you can replace one for the other.They are 100% compatible. But the motors will spin in the opposite direction. If you want to "solve" this, connect the motor cable backwards on the DEVIA control board.

And yes, you can use DRV8825 but the TMC2208 are way better talking about noise, step control and smoothness.
NOTE: you may need to adjust the output current of the TMC2208. By default they deliver 1.3-1.6 Amperes and that is TOO MUCH. They will get too hot.
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