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The Daily Grind => Jobs Available => Topic started by: Rocinante on July 31, 2016, 12:45:06 AM

Title: 3D printer knobs wanted
Post by: Rocinante on July 31, 2016, 12:45:06 AM
I've yet to actually feel and use knobs made with a 3D printer but Im in need of the gray (aluminum) fluted Neve knobs made for usually trims but that also come in burgundy and dark blue like the ones on the Neve 8816.  I need 10 burgundy, 10 blue or gray and 5 gray.  I know the material isnt aluminum but am hoping that it would still be alright. Let me know as I'm sure one of you guys must have at least tried something similar.
Cheers
Dylan
Title: Re: 3D printer knobs wanted
Post by: maq3396 on August 13, 2016, 10:24:39 PM
Hello

You dont happen to have a CAD or STL/Obj file for these knobs do you?

Easier not to have to design them if the file already exists

Thanks
Mac
Title: Re: 3D printer knobs wanted
Post by: Rocinante on August 14, 2016, 01:55:58 AM
I don't.  i had hoped someone had already tried or did something similar.  Thanks for the suggestion.
Title: Re: 3D printer knobs wanted
Post by: maq3396 on August 16, 2016, 03:24:41 AM
Would you happen to have drawings or pictures with exact dimensions?

Failing that a reference picture?

Title: Re: 3D printer knobs wanted
Post by: peterc on August 16, 2016, 08:09:45 AM
Not sure if this helps, but there are cheap 'Marconis' on Aliexpress....

http://www.aliexpress.com/item/Marconi-style-6-35mm-colorful-plastic-guitar-knob-with-set-screw/32454782217.html
Title: Re: 3D printer knobs wanted
Post by: EmRR on August 16, 2016, 10:12:41 AM
Ya know what knob is moss in need of replication?  The Altec/Langevin/Electrodyne/etc 'Rolo' fader knob. I get asked for a stash of these constantly, and could use 20-30 myself. 

(http://bibbteck.com/content/images/thumbs/0003405_altec-9073a-graphic-eq-plus-fairchild-661tl.jpeg)
Title: Re: 3D printer knobs wanted
Post by: mjrippe on August 16, 2016, 10:37:46 AM
Is this the style you are talking about?  http://r.ebay.com/pMntMj
Title: Re: 3D printer knobs wanted
Post by: Rocinante on August 16, 2016, 11:08:21 AM
Is this the style you are talking about?  http://r.ebay.com/pMntMj

Yes!

I know they are aluminum and tektronix makes knobs that are very similar but they are all 1/8" and short. At $10 a pop (at best) and I need a lot so its wayyy too much. 
Title: Re: 3D printer knobs wanted
Post by: Rochey on August 16, 2016, 12:26:48 PM
Have you considered buying one, then molding new ones using silicone mold?
Title: Re: 3D printer knobs wanted
Post by: Rocinante on August 16, 2016, 04:01:17 PM
Have you considered buying one, then molding new ones using silicone mold?

I have a few attached to Neve stuff so I guess I'm looking up silicon molding...
Thanks
Title: Re: 3D printer knobs wanted
Post by: maq3396 on August 16, 2016, 04:39:34 PM
I was thinking that perhaps a hybrid approach would be the most satisfying...I have done this a few times with good results.

Silicone mold for getting the outer shape and detail.

3D printed component to produce inner shaft or whatever is needed to connect to your device.
Alternatively you could use the shaft of an old pot if it was the correct dimensions.
And a 3D printed jig to make it all stay together until the polymer sets

Numerous possibilities

Trickiest part is likely color matching...that may take a bit of work

The Altecs look fairly straightforward btw.
Title: Re: 3D printer knobs wanted
Post by: Rochey on August 16, 2016, 04:51:06 PM
I was thinking that perhaps a hybrid approach would be the most satisfying...I have done this a few times with good results.
Silicone mold for getting the outer shape and detail.
3D printed component to produce inner shaft or whatever is needed to connect to your device.
Alternatively you could use the shaft of an old pot if it was the correct dimensions.
And a 3D printed jig to make it all stay together until the polymer sets
Numerous possibilities
Trickiest part is likely color matching...that may take a bit of work
The Altecs look fairly straightforward btw.

Love this post.

(http://media1.giphy.com/media/GQnsaAWZ8ty00/giphy.gif)
Title: Re: 3D printer knobs wanted
Post by: Rocinante on August 17, 2016, 12:45:57 PM
Cool. I have a lot on my plate (just got into microcontrollers via arduino and teensy) but the silicon looks very promising. I should think the burgundy and dark blue are easy enough to match.  Thanks. This looks interesting.
Title: Re: 3D printer knobs wanted
Post by: maq3396 on August 17, 2016, 09:54:20 PM
If someone can recommend the best place and part number to get some "sample knobs" from I will give it a go.

Thanks
Mac
Title: Re: 3D printer knobs wanted
Post by: Rocinante on August 18, 2016, 10:39:51 AM
Where are you?  I have one I can send you.  The screw shaft got f***ed up from my carelessness but otherwise its nice.
Title: Re: 3D printer knobs wanted
Post by: maq3396 on August 18, 2016, 04:29:32 PM
I am in London, Ontario, Canada.

Does that work?
Title: Re: 3D printer knobs wanted
Post by: Rocinante on August 20, 2016, 11:40:12 AM
Ill pm you.
Title: Re: 3D printer knobs wanted
Post by: leadbreath on August 22, 2016, 08:08:37 AM
Also loving this post,

 I also need a couple of the knobs for the old style Paintons faders  as used in the REDD desks?

If anyone can help let me know...

Title: Re: 3D printer knobs wanted
Post by: maq3396 on August 23, 2016, 07:20:02 PM
Just the knobs?

That should be reasonably straight forward.

Havent been able to find decent pictures and there seem to be a few variations.

Can you post pics (or send them my way) from a few different angles please?

Thanks
Mac
Title: Re: 3D printer knobs wanted
Post by: leadbreath on August 25, 2016, 09:26:29 PM
Hi Mac

Awesome,  I'll have a look through all my docs and post all the pics/sizes on these knobs.

Much appreciated
Mick
Title: Re: 3D printer knobs wanted
Post by: maq3396 on August 27, 2016, 11:27:39 AM
Thanks,

Those can likely be 3D printed directly...at least for the purpose of rapid prototyping.

Depending on your needs that may be sufficient or could also be molded with a more solid polymer...white as a color is much easier!

A diagram with dimensions would be fine.

Take care
Mac
Title: Re: 3D printer knobs wanted
Post by: chet.d on September 24, 2017, 02:33:36 PM
Ya know what knob is mosts in need of replication?  The Altec/Langevin/Electrodyne/etc 'Rolo' fader knob. I get asked for a stash of these constantly, and could use 20-30 myself. 

(http://bibbteck.com/content/images/thumbs/0003405_altec-9073a-graphic-eq-plus-fairchild-661tl.jpeg)

Yes! 
I've been trying to find some (16) of these rolo's with pretty much no success.  Any 2017 suggestions?
Anyone want to seriously consider fabrication to fill a empty spot in the fancy rolo fader cap market !?
Title: Re: 3D printer knobs wanted
Post by: maq3396 on November 01, 2017, 04:03:09 PM
If you can provide some dimensions I am happy to dabble at it.

A picture of the under surface would be useful as well.

I can print these in resin so should be high quality.

Have to see what can be done about the red color.

Prototypes would be frosted-clear.

Cheers
Mac
Title: Re: 3D printer knobs wanted
Post by: peterc on November 01, 2017, 05:47:37 PM
One of our members has collet inserts in his web store

http://diy-tubes.com/index.php?route=product/product&path=25_29&product_id=504

Peter
Title: Re: 3D printer knobs wanted
Post by: maq3396 on November 05, 2017, 10:35:00 AM
The collets are a nice adjunct.

Still interested in printing some demos of these if there is an interest.

Cheers
Mac
Title: Re: 3D printer knobs wanted
Post by: sr1200 on September 06, 2018, 11:42:24 AM
I do a lot on the 3d printer.  I've done a bunch of audio related things and was considering doing knobs as well.  3d print is never going to look exactly like a molded or milled/painted piece.  That being said for proto purposes is amazing.  You can then take your stl file and have a shop produce them. 

Reason for posting, if anyone wants to dabble, tinkercad.com you can design your own stuff and output an stl file.  No cost and you can get some pretty crazy stuff done with the limitations of the service.