Search found 204 matches

by arvidb
19 Dec 2017, 15:33
Forum: Custom Applications
Topic: VESC4X
Replies: 3
Views: 111

Re: VESC4X

Make sure the hardware you choose has all the peripherals needed (timers, ADC channels etc) and that they can be used together in the way necessary (I believe the VESC needs to be able to sync ADC measurements to certain parts of the PWM output - this needs hardware support). Also, make sure your pl...
by arvidb
17 Dec 2017, 16:33
Forum: VESC Projects
Topic: VESC in homemade lathe/drill press
Replies: 11
Views: 538

Re: VESC in homemade lathe/drill press

regarding a 2400W motor, 245Kv is used... I my world of electronics, 245Kv would mean 245,000 volts...?!? also, this forum refers to batteries by 12S, 3S, etc... does that mean "cells", at 1.2V per cell...?!? i've worked on electronics from radars to micro-hybrids, and have never come acr...
by arvidb
12 Dec 2017, 14:51
Forum: For sale, orders, etc.
Topic: MINI compatible with VESC® Software
Replies: 28
Views: 2572

Re: MINI compatible with VESC® Software

The "kicad_subory" footprint library seems to be missing from the github repo. If you could add that I would be greatful. (Either to the MINI4 repo directly, or to a separate repo if you don't want it in the MINI4 tree.) Also, any particular reason why you've used resistor footprints for m...
by arvidb
11 Dec 2017, 16:12
Forum: For sale, orders, etc.
Topic: MINI compatible with VESC® Software
Replies: 28
Views: 2572

Re: MINI compatible with VESC® Software

BTW, I like your motor test bench setup. I see you are using a "beam" (or "helical") type of flexible coupling. Does it work satisfactorily for you in this application? How much speed can it handle without too much vibration? There seems to be nothing available for "RC speed...
by arvidb
11 Dec 2017, 15:57
Forum: For sale, orders, etc.
Topic: MINI compatible with VESC® Software
Replies: 28
Views: 2572

Re: MINI compatible with VESC® Software

Great work, and thanks for sharing!

Was it the change of C80 from 2.2 µF to 10 µF that made it work better with higher voltages?
by arvidb
27 Sep 2017, 11:25
Forum: FOC
Topic: oscilating in FOC mode, not in BLDC mode
Replies: 4
Views: 951

Re: oscilating in FOC mode, not in BLDC mode

Yes: https://en.wikipedia.org/wiki/PID_contr ... of_methods

(Sorry for the late reply, hopefully it will be useful for someone!)
by arvidb
27 Sep 2017, 11:17
Forum: Custom Applications
Topic: Weird issues with debugger
Replies: 2
Views: 270

Re: Weird issues with debugger

Does everything else work? Do you have a working 5 V rail (measured over C33)? Do you have a working 3.3 V rail (measured over C25)?
by arvidb
16 Sep 2017, 11:54
Forum: General
Topic: PC Software and firmware versions incompatability
Replies: 5
Views: 409

Re: PC Software and firmware versions incompatability

The current version of the tool seems to be https://github.com/vedderb/vesc_tool. (This, I believe, is the new rewritten tool that also works with VESC6.)
by arvidb
12 Jun 2017, 21:10
Forum: Related Hardware
Topic: High Power VESC
Replies: 70
Views: 16037

Re: High Power VESC

Ah, an EC5! I use them too, on my RC car. I think the worst problem with them (which they share with pretty much all RC type connectors) is that they have no strain relief for the cables; all strain is taken up by the solder joint. (And I know what you mean with "too much solder around the bull...
by arvidb
12 Jun 2017, 11:45
Forum: General
Topic: Emergency braking concept for VESC
Replies: 40
Views: 8553

Re: Emergency braking concept for VESC

Well, yes, with good cooling (i.e. VESC6) you might get away with dumping 5 % of 2500 J into your MOSFETs, if you don't do it too quickly. No way you will be able to dump 50 % into them though!

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