D-sub alternative

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D-sub alternative

Postby ICEUK » 23 Nov 2022, 22:50

I never got on with the D-Sub connector so I looked for alternatives, what I am now using is a Anderson SB50 connector for power, designed a simple mounting for the connectors and 3D printed it, converted my PL8 use Anderson SB50 connector and for balance wires I used

Amphenol Limited, 97B 10 Way Cable Mount MIL Spec Circular Connector Plug, Pin Contacts,Shell Size 18, Bayonet
Stock no.:442-2202
Amphenol, 97B 10 Way Wall Mount MIL Spec Circular Connector Receptacle, Socket Contacts,Shell Size 18, Bayonet
Stock no.:442-2634
Amphenol Industrial Cable Clamp
Stock no.:475-959

It's much easier to remove the power cable from the Anderson using the handle, the Amphenol connectors have a locating lug so you line it up and then turn the outer shell and it pulls the connector in and then locks it in place, soldering is a lot easier as there is more room on the back of the connector. you can buy a rubber boot to cover the Anderson to stop dirt getting and I 3D printed a small cover for the Amphenol connector. My IR values have decreased since I used this set up.

I still have a bit of tidying up to do on the wiring a nice bit of braid will finish it off, apologies for the state of the chair. 3D printed files attached too.
Attachments
IMG-20221118-WA0000.jpg
IMG-20221122-WA0000.jpg
PXL_20221118_144850922.jpg
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Re: D-sub alternative

Postby ICEUK » 23 Nov 2022, 22:56

STL files attached and another picture
Attachments
PXL_20221115_160641792.jpg
WinZip Backup2022-11-23-21-54-15.zip
(20.02 KiB) Downloaded 1 time
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Re: D-sub alternative

Postby Burgerman » 23 Nov 2022, 23:03

A bit bulky but if it works for you. Be careful using those 4mm connectors on the power supply. And careful of charging with a 12v supply. It doubles the chrge amps at the power supply. Expresso got flames doing that! He might have ben unlucky. Who knows.

What cells did you end up using?
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Re: D-sub alternative

Postby ICEUK » 23 Nov 2022, 23:32

I used 202ah cells x 8. The power supply in the picture is one I use for my lipos in the shed just a cheap crappy thing it probably only ever charges at 15amps I have attached a picture of my power supply that I use for my chair a much better quality power supply
Are ring connectors better than banana connectors in power supplies? Is there a specific ring connector you would recommend BM?
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PXL_20221123_222247735.jpg
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Re: D-sub alternative

Postby Burgerman » 23 Nov 2022, 23:58

Any ring connetors are much better!
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Re: D-sub alternative

Postby slomobile » 24 Nov 2022, 17:49

Mil spec circular connectors are really nice but pricey. Another nice pricey option is Deutsch connectors. They are very popular for making motorsports wiring harnesses. The hand crimp tool is expensive, but easy to operate and reliable. If you find yourself often having a need to make up connectors, buying into this ecosystem might make sense so you have spare pins around.
https://www.deutschconnector.com/produc ... onnectors/
https://store.emhmotorsports.com/connec ... utsch-dtm/
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Re: D-sub alternative

Postby martin007 » 24 Nov 2022, 22:46

I like those adaptations.
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Re: D-sub alternative

Postby ICEUK » 24 Nov 2022, 23:32

The mil connectors are expensive around £100 for the connector on the chair and the pieces to make the balance lead but it really is a quality product, soldering is a lot easier as you have so much more room at the rear of the connector you could even use larger wires if you wanted.

Feel free to use or edit the stl files
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Re: D-sub alternative

Postby martin007 » 24 Nov 2022, 23:50

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