What is the best way to drill penetrations through the edge of an enclosure for wire pass throughs? I donât want the wires trapped when I want to get inside the enclosure. I canât figure out how to clamp the enclosure securely on my drill press and I donât trust my hand to drill through the edge.
Is it ABS? Because I definitely hand-drill ABS. Make an indent first with an awl if you have one else a drywall screw. You can also use an X-acto knife on ABS if youâre super-careful not to lop off the end of your finger.
Always drill a pilot hole first dead centre of the actual hole size. Much easier to centre a small drill bit than a large. I use a bradawl sometimes too. This thing is my favourite tool for being careful though.
You just use a very sharp bit the same size as the tip of the cone bit and slowly bore out the hole to the right size.
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I always found forsner bits to play pretty nice with soft plastic since the hole wanders less
A scratch awl should be in everyoneâs toolbox. I use it on nearly every project. Bonus if you find a kit of nail sets that comes with one.
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Picky picky. 
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Do bergmeisters need a spacer between bearings?
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Itâs not absolutely necessary but it does help
@torqueboards what is the max charge current for your 12s4p pack? Is it limited by the BMS? Iâve got the 4amp wall charger, but Iâm wondering whatâs a safe battery regen value. Iâm currently using -8 amps per side of a dual vesc. Is that too high?
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What cells are they? If they are Samsung 30Q cells and itâs 4P, then the safe regen might be somewhere around -12A. You could probably do more if you wanted.
Yeah they are Samsung 30q. I had set to -12. After my last test ride (6 miles mostly flat, small build hills, stop and go at lights in the city, 95 degree outside temp) my motors were really hot. I donât have bt yet so I couldnât check the actual temp. I thought maybe my regen value was too high causing heat buildup. Maybe it was just the outside temp bring so high.
Fwiw my other motor settings are
Motor Current Max: 50A
Motor Brake Max: -40A
Battery Current Max: 30A
Battery Regen: -8A
The high regen current will cause hot battery, but only when braking at high speed, and there is an inherent limit in how long you can continue to do that. (youâll slow down)
High motor max can cause hot motor.
Also my numbers were for âbatteryâ. If youâre running dual, you need to halve all the battery numbers but not the motor numbers.
This is probably okay, doubled, for a 4P pack with 30Q cells. So the pack would see 60A and -16A
@anon54720240 VESC Tool 1.16 https://ufile.io/sslh3w2a
@AnotherEndeavor safe zone is -8 to -12a per motor but Iâve been using -20 to -30a with no issues so far for the direct drive setup.
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Just update the firmware. Finding the tool for your outdated firmware will be much harder and you probably wonât find it.
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Which vesc tool version are you looking for? I got a few saved in my PC.
Edit #1:
I have these:
- Vesc 0.83
- Vesc 1.00
- Vesc 1.04
- Vesc 1.08
- Vesc 1.13
- Vesc 1.14
Edit #2:
Here are the files if anyone wants them. I think it will only be up for 30 days.
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Absolutely they do. All bearings need spacers. All of them. If not when you tighten up the wheel you are putting lateral forces on the inner race and the bearings will bind.
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This was my understanding as well. Hmm I didnât get any with my wheels. Maybe I just didnât look well.
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Is a single 6374 190kv motor enough to carry a big guy around 160 lbs up a hill and around town?