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Rotisserie DIY RCM: 'Rough n' Ready'

Spectrum77

Spectrum77

Super Member
After reading through DC's consolidation of DIY RCMs http://audiokarma.org/forums/showthread.php?t=318672, I thought I'd give it a go:

"Rough n' Ready Rekkid Cleanser"
* Apologies if the procedure is unclear and/or too specific to the items used. For inspiration only!*

1. Take a rotisserie oven:
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2. Remove motor, controller, rotisserie drive cog. Add a turntable platter. This one is from a Technics deck, driven by a Hall motor. The magnet ring attached under the platter was incorporated into the design.
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3. File the edges from a 6mm nut and bang it into the underside of the platter.
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4. Drill out location stub from rotisserie cog. The head of the 6mm bolt, rotating in the concave of the stub, will keep the platter centred.
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5. Assembly: stub from centre of rotisserie cog, 6mm bolt (secures cog to platter), cog and 6mm nut in platter.
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6. Take an old speaker cab and cut holes for vacuum pipe and motor. Drill mounting holes controller.
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7. Cut mounting holes in 9mm ply for sliding door rollers. These rollers support the edges of the platter as it revolves for cleaning and vacuuming.
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8. Cheap Chinese-made wet/dry vacuum sits (as is) inside the cab. The vacuum nozzle friction fits 20mm water pipe perfectly.
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9. 20mm pipe -> 20mm - 16mm adapter sleeve. Held in place by a clamp.
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10. 16mm water pipe -> elbow and this forms the vacuum wand. Add an old, frozen woofer for effect. Reinstalled the back on the cab- vacuum no longer sounds like a jet engine.
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11. Cut a slot in the vacuum wand with a Dremel tool. A strip of velvet ribbon adhered with double-sided tape either side of the slot protects the vinyl.
* Photos to come- (uploading problems...)

12. Clamp secures rekkid to platter. Hand clean with a paint pad, then Disc Doctor brush and water rinse. Vacuum between processes.
* Photos to come.

I used to scrub records using by hand turning an old turntable and vacuuming by hand with a slotted crevice tool. This rough n' ready machine is much easier to use as the record is clamped down, the vacuum wand removes cleaning fluid and rinse water perfectly as the torquey rotisserie motor turns the platter. The whole process is far faster than before.
 
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16mm water pipe showing vacuum slot. This slot is a bit too wide- will try cutting another with a thinner disc on the Dremel tool.

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Pipe sprayed black and velour attached with double-sided tape. This tape is removable and used for hanging posters, etc.

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Velour close up. This is ribbon from a haberdashery store. Provides enough cushioning to prevent the pipe scratching the vinyl, but isn't so shagpile that it soaks up liquid.
 
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* Click on the pictures to start short demo movie. Movies take about 30 seconds to begin.*

First stage of cleaning process. The initial detergent scrub is usually left to soak for 2 minutes before vacuuming.



Same process showing the operating procedure.



The power strip is dangerously close to liquids. This needs to be repositioned!!
 
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Pretty cool. Nice "distillation". FWIW I use the motor for the cleaning and rinsing phases, unless I have a stubborn spot that needs scrubbing.
 
Very nice. My rcm has the same cut out with the velvet but it is on the end of the hose. I need to make it so it's attached like yours. Nice job.
 
Good idea! I searched for a disused rotisserie assembly when I was building my RCM but never found anything suitable.

I'll add it to the thread.
 
Thanks for the comments, hope the design proves useful to someone else.
Still requires some refinements: the slot in the cleaning wand occasionally leaves behind some moisture residue- perhaps the finer slot will help. Also, the platter has some lateral movement due to the bolt head having some play in the stub seat. The bolt needs to be completely contained via a different mounting. But good 'nuf for now!
 
What are you using for the clamp/weight to keep the record on? Could you provide close-up pics?
 
Can get pics on the weekend (RCM is at my mountain shack).
The clamp consists of a large, grey PVC water pipe cap filled with some cedar (to give it momentum when screwing off and on) and there is a 6mm joiner (a threaded sleeve for joining threaded rod, etc.) jammed into the cedar which attaches to the 6mm bolt in platter. Self-adhesive cushioning tape on the bottom of clamp prevents (most of) the label from liquids.
 
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