Noob question thread! 2020_Summer

How sensitive is the canbus/cable connection to electrical interference? The cable runs pretty close to the phase wires

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thx this is nice. I found several conflicting sources out on the web. hard to know what’s what.

Usage matters a lot. That chart is specifically for esk8 use (<1 meter and in-chassis DC power). Insulation matters a lot too, use silicone-insulated wires.

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I accidentally ordered the wrong pivot cups and I was wondering what will happen if I put a paris style pivot cup in a caliber II style baseplate? @RipTideSports

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What’s positive and negative lol. My stupidest question yet

As long as you’re careful, plug it in and measure voltage. If it’s giving a negative voltage, you have the multimeters positive and negative leads backwards.

DO NOT TOUCH THE PRONGS TOGETHER WHILE THE CHARGER IS PLUGGED IN. THIS WILL COMPLETE THE CIRCUIT AND END BADLY.

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I think the center is positive and the side prong is negative

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to expand on Justin’s comment

what you are intending to measure is the polarity of the male DC5521 (5.5 x 2.5mm) connector this will inform how you wire the female side in the image.

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This is how most if not all the chargers I’ve had are. You can check the charge brick for the symbol that shows the pin polarity.

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It’s just a standard charger I’m using that I got from Tb lol

lol if the charger polarity is not published on the charger you can carefully measure the voltage using a multimeter as described here. lol

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Center pin is positive. I solder it while a male is plugged in to make sure the pin doesn’t move while it’s hot.

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brian - are you suggesting the plug is designed in a way that would prevent accidental phase to ground contact so it can be left unprotected? this is absurd! :laughing:

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LoL no I’m just saying I don’t trust the rubber stuff around the base of the center pin. I don’t want it to become crooked after soldering. So keeping the mate plugged in holds the pin straight while it’s hot. It also has a side-effect of cooling it off faster.

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i was just kidding around with you. my humor is obtuse and does not always translate well over the interwebs. you are giving sound advice and i shouldnt joke in the n00b thread.

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I bought size M5 screws to hold my trucks but they dont fit through the skateboard’s pre drilled holes. What size drill bit should I use to make the hole bigger to fit or does anyone recommend a different size screw for this?

I would use a 10-32 thread size. I don’t normally recommend FUB over metric, but the standard for this is 10-32 and if you use the standard, your life will be easier.

Use metric for everything else.

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Thanks man! Was m5 sized screws the right move or is there a typical size that most people use that I should have grabbed instead?

Yes, 10-32 size. It’s FUB

FUB = freedom unit bullshit = not metric = Imperial = avoirdupois

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Never sotered before, is this wire 1 pce ? Can i just do the most basic of soldering twist it together and put some liqwed metal on it, all so what typ solder