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3D Printer Fun: Record Clamp

polypetalous

polypetalous

Super Member
Thought some might find this interesting... melding of my two favorite hobbies Audio & 3D Printing.
Been short on audio related funds, yet been jonesing to try out a "record clamp" on my setup... thanks to recent AK thread(s).
So thought I'd 3D print one to "trial."
After searching the web for a "record clamp print file," I only came up with one in existence from 2014 that doesn't actually work or print, so decided to design my own.
Caveat with "design," as obviously mine borrows heavily from existing record clamp designs, but you know what? It works! And each piece IS unique in one way or another...

Printed on my Anet A8 printer (cheap $160 kit printer)
Using PLA filament

Some pics:
Prototype 1.1 pic 1.JPG Prototype 1.1 pic 3.JPG Prototype 1.1 pic 2.JPG Prototype 1.1 pic 4.JPG


Ben
 
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kirk57 said:
Hmm. Plastic may actually be a desirable material for this purpose.

Can you make them black?
Click to expand...

I wasn't sure of the durability of the plastic threads, but so far they are solid (thread is based on a M12-1.75pitch), but you are right the plastic collet does offer less "chance for spindle damage" over the typical brass collet.

Color is just a matter of paint or using colored filament (ALL colors exist), I just happened to have a white spool loaded.

Ben
 
kirk57 said:
Hmm. Plastic may actually be a desirable material for this purpose.
Click to expand...

As a clamp, as opposed to a weight, plastic should be fine. My TriPod and Souther are both plastic.

I have no 3d printing capabilities but would love to try one out.
 
You need to add a recess on the Pucks underside so you can add washers under warped records
so the clamp can push the outer edges down to the outer rim of the platter.

39779456733_8f98cf7163_b.jpg
 
Nashou66 said:
You need to add a recess on the Pucks underside so you can add washers under warped records
so the clamp can push the outer edges down to the outer rim of the platter.
Click to expand...

Agreed...
I had intended to add the recess, but admittedly got excited to have a prototype in hand.
This was the "easier/faster" print to ensure it all worked.

I tested it with a very warped record and it did indeed flatten it out.

Recess will be included in next revision.
Thank you for the input, appreciated!

Ben
 
ripblade said:
Nice job! I soooo want a 3d printer, but, it would be a waste with my programming skills. :(
Click to expand...

I encourage anyone who likes to build/tinker to try out 3D printing... and again this was produced on a $160 machine, so buy in is low.
Takes some time to build and dial in, but nothing terribly difficult and the Anet A8 has a large, knowledgeable online following.
I have worked with half-million dollar printers and truly enjoy this cheap one the most.

Ben
 
thirsty93 said:
Can you make one of these or know someone who can?
Click to expand...

Short answer is yes I could...
But, herein lies the problem(s):
1) I or someone else would need to model the part, which is time and effort.
For example the record clamp took me ~20 hours to model, with most of it spent on the collet and those dang "split lines."
2) This appears to be a "shelf bracket," so I would be concerned about how heavy the shelf + contents are and how many of these brackets there would be to support the shelf. Not sure how long a 3D printed part (PLA or ABS) would hold as it looks like the pegs/dowels carry all the load.
3) The shape of the part does not lend itself to "easy/clean" 3D printing, supports would have to be added due to the shape and home printers do supports but they can make for a messy print and/or not great finish.

So, IF I was one to do something like this I'd want to re-design the part to better lend itself to 3D printing... Such as turn the front "curvature" into a straight line (rectangular), and the "recess" where the shelf slips in I'd turn into a v-groove. Those two changes would make this a part that could be printed without supports.
I ALWAYS try to design and print without supports (wherever possible).

But ultimately, I'd have doubts about the longevity of a 3D printed part for this application, and would HATE to have some gear come crashing down because of some weak brackets.

Perhaps you can cut down the existing plastic pegs, drill out the stumps and bond in some proper size dowel pins... ?


Ben
 
Thanks for your response Ben.i bought this back in the 90’s from av architecture and the brackets are junk even new.i love the stand but I’m looking for a way to better support the glass shelves.i need something that basically bolts to the vertical and supports the glass horizontally.but the tube is only as wide is the bracket.any ideas Thanks Bob
 
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