Servo drives costing 22 euros for 2 motors

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26 Oct 2016 23:57 #82125 by tommylight
That is nice, i just requested some samples, i have some uses for it regarding Linuxcnc! Thank you.

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21 Mar 2017 23:54 #90038 by tommylight
By request, here are the config files for this example. Be aware that it uses a single parallel port in mode X, for 4 servo drives and 4 encoders so it has only 1 input left unused. Also in some cases the motors will run at will as they do not have enable inputs, if they go to an hard stop it will burn the mosfets or/and motor.
I case you do not need 4 drives, you may configure one of the outputs as enable out and wire another mosfet that will stop the power to the drives.
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The following user(s) said Thank You: porshe, fungus, renatobada

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08 Dec 2019 18:31 #152335 by porshe
Hello. Can I connect this board via Pluto-P or MESA in servo driver mode?

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08 Dec 2019 20:23 #152339 by tommylight

Hello. Can I connect this board via Pluto-P or MESA in servo driver mode?

With Mesa yes, pluto i never used.
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09 Dec 2019 17:14 #152380 by billykid
yes, pluto is a fpga, a boy used that one.



saluti
Mauro
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11 Dec 2019 12:52 #152479 by porshe
On one site where they discussed this board, they wrote that you can make a current limit on the arduno. Apply ACS712 Sensor

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11 Dec 2019 14:58 #152482 by tommylight
There are much cheaper and better alternatives now, like the 43A or the 30A ones for arduino, they look like they do have some type of feedback for current limiting or disabling the drives. I did order several of both types so i will test them when i get them and report back. At the price of 7 or 8 $ a piece, well worth investigating.
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27 Dec 2019 23:18 #153340 by andypugh
Note that the chap who wrote the LinuxCNC Pluto driver says that he found then flaky and that they simply wouldn't work at all with some parallel ports.
I probably wouldn't recommend Pluto-P for new builds.

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28 Dec 2019 17:57 #153372 by billykid
yes, I also meant to use the pluto in case it already has one,
also because using a bare h bridge is better to have a faster servo thread, I used a PCI and managed to go to 8khz
with significantly better performance.
regards
Mauro

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30 Aug 2020 01:32 #179992 by Profed81
Why the fourth axis is linear? Do you have tested the fourth axis? I think it would be rotational axis

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