Motor-couplings

Hi all,

here's a simple elastomer X-coupling, what's pretty easy to adopt for reprap:


Viktor

Nice thought.
Even if we have to machine the claws from brassrods (should be fairly simple)
the inlet itself maybe printable

Although I like the "starshaped" more, those are definately easier to make at home.

'sid

PS Sag mir nicht, Du hast die auch selbstgebastelt

sid from outer space Wrote:
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> ...
> PS Sag mir nicht, Du hast die auch selbstgebastelt

This ones were used in 'stone-old' XY-dataplotters from "Gould"

Some years ago i was employed at "Gerwah" ( [www.gerwah.com] ) where i started and activated as spin-off [www.gerwahmikro.de] here i developed and built some very special systems - here a photo of a medium-sized mikro-coupling and a pin (in comparison to [www.gerwah.com] )

[attachment 1047 Clutch1_kl.jpg]

Viktor

Well...

what can I say? AMAZING!
I'd love to have some of those gerwah couplings..
shiny, colourful... mjammm

'sid

Hi sid,

i didn't have them in stock - but when we have some specific dimensions, i think i'll get them in bulk with a special price ...

Viktor

Just as an amusing, but possibly useful, aside. Related to reprap I am also participating in a technical group that is interested in electrical discharge machining (EDM). One guy is building a sink EDM machine. Sink EDM machines have a ram with a lead screw actuator. The lead screw has to be attached to either a stepper motor or a gearmotor in a good feedback loop.

This guy in my group made a coupling between the lead screw and the gear motor driving his ram with an unusual product known as shoe goo.

[www.eclecticproducts.com]

It's used for a lot of things by some very odd people. I first ran across it when it was used by professional snipers to build their ghillie suits. Anyway, here is the reference that I came across in my user group.

[tech.groups.yahoo.com]

... hmm ... maybe good for finishing brittle or delicate surfaces?

How's the price and the settling time?

Viktor

How's the price...

[www.amazon.com]

... and the settling time?

[www.eclecticproducts.com]

... 2 to 4 hrs settling-time, 24 to 72 hrs full curing ...

If with heating the settling-time could be reduced to some minutes, then this could be a good resin for fabbing at room-temp and curing with a IR-tube.

Viktor