Can I get a miniture turntable ?

[toolsntat]

I'm thinking of a project (yes, Mr Nevergetaroundtodoingought has another project )
I want to display a Bog Oak "Little Billy" plane and have it rotating on, preferably, nothing bigger than 40mm diameter.
What do you reckon?
Cheers,Andy

 

[Mike G]

Wouldn't you just buy a normal turntable, strip off the big circular table, and replace it with a small table?

 

[Tris]

A bit bigger than you suggested but they are out there

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[toolsntat]

Perhaps a bit more information will highlight my predicament.
I'm hoping to bore out the end of a 4" diameter log and insert the turntable flush to the surface of the end grain.
Another piece of timber will also be mounted upon the same surface to create a backdrop, hence the diminutive turntable requirement.
Cheers, Andy

 

[Mike G]

Right, so get an old battery-powered drill, and strip it. Mount the motor inside the log, with the chuck still attached. Either wire in the battery, or get hold of a transformer and wire it to that. Make a mini turntable using a bit of wood and a bolt, and mount that in the chuck. Set the speed to the lowest possible, and away you go.

 

[9fingers]

Microwave turntable motor should be ideal.

 

[Tris]

This might do the job

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This miniature gearbox is of steel and brass construction with brass gears and is mounted on a 1mm thick steel bracket. It incorporates a high quality three pole motor with sintered bronze bearings. The design and construction of the unit make it suitable for a host of model and light industrial...

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[toolsntat]

Right, so get an old battery-powered drill, and strip it. Mount the motor inside the log, with the chuck still attached. Either wire in the battery, or get hold of a transformer and wire it to that. Make a mini turntable using a bit of wood and a bolt, and mount that in the chuck. Set the speed to the lowest possible, and away you go.

I like your thinking Mike but unfortunately it is not a very big log and 1/2" needs to be taken off the top leaving me approximately 3 3/4"

Microwave turntable motor should be ideal.

Damn and blast, I knew I should have kept those old microwaves...
I don't think I have ever seen a microwave motor Bob, looking at the log would you be able to fit it in?
Cheers, Andy

 

[toolsntat]

This might do the job

Shop Single Ratio Gearbox | Hobby.uk.com Hobbys

This miniature gearbox is of steel and brass construction with brass gears and is mounted on a 1mm thick steel bracket. It incorporates a high quality three pole motor with sintered bronze bearings. The design and construction of the unit make it suitable for a host of model and light industrial...

hobby.uk.com

Interesting, could it be slowed right down to say 2 or 3 rpm ?
I don't have a target speed but something sedate is preferable.
I wonder if overheating could become an issue with any suitable unit?

 

[9fingers]

They are not very big Andy

 

[9fingers]

By using the output shaft running on the underside of the turntable, a useful speed reduction can be achieved.

 

[Tris]

Interesting, could it be slowed right down to say 2 or 3 rpm ?
I don't have a target speed but something sedate is preferable.
I wonder if overheating could become an issue with any suitable unit?

They do list another motor that gets down to about 4.5 rpm, whole range here including sub miniature

Electric Motors - Electrical & Electronics - Components Online | Hobby.uk.com Hobbys

Electric Motors - Electrical & Electronics - Components Online | Hobby.uk.com Hobbys

hobby.uk.com

If you are looking for really sedate what about a clock motor and mount the disc to the shaft for the second hand. Think you could add a switch inline with the battery fairly easily

 

[Pete Maddex]

I don’t think a clock motor would have enough power to turn a turntable.

Pete