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DIY USB cables/ Power cables

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3 replies to this topic

#1 Lucas.Maguire

Lucas.Maguire

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Posted 15 September 2021 - 11:06 AM

Hello! 

 

I was looking into making a set of custom USB cables and power cables for my rig. I was wondering if there are any DIYs or tutorials that are people's "go-to" and dealers for parts needed. 

 

 

I'm looking to make USB 2.0, USB 3.0, and DC 2.1 cables for the pegasus powerbox advanced. 

 

Thanks! 

-Luc



#2 rhetfield

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Posted 15 September 2021 - 12:04 PM

As much as possible, I would search places like Allied, CDW, Digikey, and Amazon for premade versions of whatever you need.  Trying to solder a USB cable especially needs the hands of a brain surgeon to get it done decently.



#3 iwannabswiss

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Posted 15 September 2021 - 12:48 PM

eBay's where I get many of my parts.

Edited by iwannabswiss, 15 September 2021 - 07:07 PM.


#4 chemistorge

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Posted 15 September 2021 - 12:50 PM

For power I order of amazon, some prewired 2.1 mm connectors, some cable and a 10A power supply. I put a female on one end and connect 6 male 2.1 mm connectors spaced along a cable. 

 

DC 2.1 mm sockets and plugs (5A): https://www.amazon.c...uct/B0911TYJQC/

 

12V 21A cable (rated high to reduce voltage drops along cables) : https://www.amazon.c...duct/B07F6FBCZN

 

10A power supply: https://www.amazon.co.uk/gp/product/

 

This lead now powers my mount, focuser, filter wheel, dew heater, raspberry pi, asi cams and flats box. 

 

For 5V devices (raspberry pi and USB hub for ASI cams) I took a project box and put 2 USB breakout boards and two 2.1 mm jacks holes in. One jack is 12V in, the other is 7.4 V out (cannon cameras). The USB voltage is set to 5.25V (allow for voltage drop along cables). There are three DC-DC buck converters inside that step down voltages. 

 

USB Breakout board (solder across data pins to allow USB charging by phones etc.): https://www.ebay.co....tm/232686107596

 

DC-DC buck converters: https://www.amazon.c...e?ie=UTF8&psc=1




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