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Couplings! Anyone found any good method or parts?

Posted: Sun Aug 11, 2019 9:32 am
by admin
For those who has built the original size, what couplings have you used? The printed ones I made was as described just for initial testing and they are clearly not up to the job for very long, at least not in PLA. There are of course many different ways of connecting shafts and traditionally in smaller model boats a thick PVC hose pr shrink tube is used.

I would like to know if anyone has found any off-the-shelf couplings with set-screws that can be used for the project? (or any other convenient method for that matter).

Re: Couplings! Anyone found any good method or parts?

Posted: Tue Aug 13, 2019 1:17 am
by Kylecox1019
admin wrote:
Sun Aug 11, 2019 9:32 am
For those who has built the original size, what couplings have you used? The printed ones I made was as described just for initial testing and they are clearly not up to the job for very long, at least not in PLA. There are of course many different ways of connecting shafts and traditionally in smaller model boats a thick PVC hose pr shrink tube is used.

I would like to know if anyone has found any off-the-shelf couplings with set-screws that can be used for the project? (or any other convenient method for that matter).
I have been using amazon.com for most my odds and ends. I don’t know about international shipping but I did find these and they come in multiples sizes as well as adapter for different size ends.

https://www.amazon.com/Hobbypark-Coupli ... th=1&psc=1

Or something if you have an angle in tour driveline. These are the ones I will be using but in 5mm-5mm.

https://www.amazon.com/Motor-Coupling-U ... 0cnVl&th=1

Re: Couplings! Anyone found any good method or parts?

Posted: Thu Sep 12, 2019 8:05 pm
by Morgan8er
the distance between the motor shaft and jet drive housing and shaft is VERY short...I'm going to turn a short piece of brass with set screws for both sides, just like the suggested brass dogbone in the previous post...but shorter...much shorter; like 1/2 as long? Anyone else have any other suggestions?