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Another DIY Vacuum RCM

Like many AKers, I wanted to make myself a vacuum RCM to avoid the great expense of a purchased unit. After completing the project, I would highly recommend the vacuum cleaning method to those who doubt.

It all started with one of a couple old tape storage bins I found at local thrift store. Cool story in itself.... found 5 tape storage bins with >300 vinyl rip cassettes from the 70s-80s for $20. After organizing them, I had one left over that was falling apart and it went to the garage. Pic is one of the good ones I kept for tape storage for reference.
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I failed to take pics of the construction process so no in progress pics to be found. The build I will attempt to simply describe below. It was simply gluing the sides back on to make the box structurally sound. I had a Pioneer table, black plastic belt drive model, with a broken motor, so I used the spindle bearing assembly and platter as the record holder. So obviously this is a manual spin DIY RCM. I then made a trip to Lowes to get a small wet/dry shop vac, some various plumbing fittings and adapters to get from shop vac hose to 1/2"pvc. I also picked up the commonly used square paint applicator to be my cleaner. I tore the guts out of the old tape organizer with care to save what would show once project was completed. I removed the parts of the drawers that interfered with the internal vacuum plumbing and spindle attachment and gorilla glued the drawer fronts back on to complete the aesthetics. I then liberally brushed some polyurethane to keep the spillage from soaking in. I use a typical homebrew solution for cleaning, 50% rubbing alcohol, 50% water, splash of jetdry. Also water bottle for rinsing. Both with lids pierced from the back side with a nail for ease of application. I also keep some lint free rags around for cleanup. And for the pics.

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My wand is easier to remove then spin out of the way for record change. So I lightly sanded the end that connects to the elbow for quick change. I plugged the end with a pipe plug I had in my random hardware drawer. I heated it with a torch so I could press fit in the end to seal the vacuum. I then flattened the side that would have the vacuum slit, courtesy of the dremel tool, with a rasp. I also made the end that received the heated plug back to round so it would not touch the record. I originally tried to surround the vacuum slit this with a piece of microfiber fabric, but the suction kept pulling the record to the wand and I was fearful it would scratch my records or overheat the shop vac. So I bought an extra paint pad and cut a piece to glue on the PVC wand so the wand would not contact the record.

All in all it works great and I am happy with the result except the records do not come off 100% dry. A small time of air dry and they are ready for play. Should I be content with this or does anyone have any tips to modify my design to do a better job of removing all the moisture?
 
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Mine come off bone dry. My guess is you have vacuum leaks in those drawers. Caulking every air gap will insure you have enough suction to completely dry the records.
 
Nice! I'll add a link to the DIY RCM sticky thread. :thmbsp:

I like your way of sealing the wand end flush so it can sit on the record surface without complication. As far as drying, perhaps trim the slot pads a little thinner so there is less "fabric" to absorb/retain moisture and what is present will be closer to the vacuum slots? Just a thought - I was never very successful in building an effective wand so I ended up just buying a VPI assembly for mine. :D
 
There is no leak in suction. All the joints are pvc prime/glue, doped threads, or glued and hose clamped. When I remove wand from system the shop vac relaxes as if I removed the restriction. I think DC has it. The distance from suction slit in wand to record is length of bristles of paint pad. I will have to experiment some more as time allows. Thx for the add to sticky. It is what inspired me. :yes:
 
DC, i took your advice and reduced the amount of material on the wand. A few passes with the Wahl clippers and its much shorter so as to not hold the moisture as it was. I also opened the slot with the dremel some more while i was at it and after a few spins it comes off much dryer. I just cleaned some recent thrift finds and am much happier with this change. :banana:

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Love it!

I am going to make a RCM one of these days. I already have a couple new Lamb vacuum motors for a carpet cleaning machine. I just need a beat up TT and a box. The rest is just head scratchin' stuff.

I look at all the DIY machines on AK...so I can steal all the best ideas. :D
 
I look at all the DIY machines on AK...so I can steal all the best ideas. :D

I was doing the same thing for a long time. My main hold up was would it really make that much of a difference for the effort. That and I didn't want to spend a lot of money on it. I think I have about $50 in mine and I can use the shop vac for other things as I didn't make it an integral part of my design. So if you can take anything from mine, its that it can be done for cheap.:thmbsp: I am a big thrift store shopper, for music and other random oddities. I'm sure one could find a box/table or something for the base of their RCM on the cheap. Good luck!
 
In the instructions for my RCM (VPI model) it says to make sure the slot in the tube is angled slightly toward the back of the unit. This is the direction the LP is moving FROM when it spins. It says if you don't angle the tube it won't remove all the liquid.

I wonder if you might need to play with the angle of the tube and the direction of rotation when vacuuming?

Great job on the RCM!!! I love the idea of re-purposing the tape cases. Keeps them out of the landfills and looks cool to boot!!!
 
In the instructions for my RCM (VPI model) it says to make sure the slot in the tube is angled slightly toward the back of the unit. This is the direction the LP is moving FROM when it spins. It says if you don't angle the tube it won't remove all the liquid.

Thanks! I may give that a go. The 1/2 PVC is cheap to experiment with different wand designs.
 
Very similar in concept to what I use. I have a (sadly) non-functional Technics turntable that I've removed the arm from. My PVC wand looks very much like yours. I have a cap on one end of the wand with a hole drilled in it, that slips over the spindle, and a slot cut to cover the non-label portion of the record. I used the fuzz side of velcro for my material on the wand. The fitting on the other end of the wand that adapts it to the vac hose is set to ride on the very edge of the record when the wand is set upon the spindle, so that the wand is slightly raised off of the record just a bit.

I use an old D4 brush as my scrubber, manually apply my cleaning solution, then apply the wand and power up the vac and give it one slow turn by hand. Works great.
 
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