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New Feature [Closed] 3D Printing Service

 
Jamie
(@jskinner97)
Noble V-Ratter Registered
Posts: 1572

I'm currently trialling 3D printing, having done a few bits myself, including a new drive cog to repair the record door on my 1980s Sharp Vertical Record Player. A few teeth had been chewed off the 35-year-old gear. I'm wondering what interest there would be in designing and printing new parts, such as gears, knobs etc. Obviously it would be a trial, so no costs involved, just testing the water to gauge interest. 

cog1
image 2021 09 01 183107
cog2

Jamie. 

Topic starter Posted : 01/09/2021 6:31 pm
Alex728, helloekco, PYE625 and 4 people liked
freya
(@freya)
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Posts: 1283

Jamie,

Nice work on that.

 You may be the very person i`m looing for to make some knobs for the sliders of the same make Sharp machine !

 

stephen

 

Posted : 02/09/2021 3:58 pm
Jamie
(@jskinner97)
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Posts: 1572

@freya Hi, No worries, send me a few pictures and i'll see if it's indeed viable.

The cogs are now on ebay, https://www.ebay.co.uk/itm/114974455152

Topic starter Posted : 06/09/2021 9:06 pm
19Seventie
(@19seventie)
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Posts: 89

Hi Jamie

It could be useful to have the AFC tuning keys that portables had?

I'm currently looking for one for my Ferguson 34170. Maybe on that note, new doors could possibly be made for TVs and the likes?

Posted : 11/09/2021 12:14 am
helloekco
(@helloekco)
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This is something I'm very interested in! I've been toying with the idea of getting a printer myself for a while, I just can't think of a good place to keep it. I have a small list of things I need it for; some vintage electronics related (e.g. channel knob for my Ekco T344F), some classic car related.

Posted : 13/09/2021 11:06 pm
Jamie
(@jskinner97)
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Posts: 1572

I've just finished with Stephens slider for his Sharp... It's been a learning curve that's for sure! If anyone wants to upload a few pictures of the sort of thing they'd like to see done, I can certainly give it a look. It's a VERY time consuming process. Just on this below design I must've spent nearly 10 hours over the course of a few weeks (aswell as working 42hrs a week driving a school bus!) 

image 2021 11 26 200852
Topic starter Posted : 26/11/2021 9:09 pm
crustytv
(@crustytv)
Vrat Founder Admin
Posts: 10842

Excellent work Jamie, hope you get lots of commissions, you're providing a valuable service to the vintage communities.

Posted : 26/11/2021 9:20 pm
freya
(@freya)
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Posted by: @helloekco

This is something I'm very interested in! I've been toying with the idea of getting a printer myself for a while, I just can't think of a good place to keep it. I have a small list of things I need it for; some vintage electronics related (e.g. channel knob for my Ekco T344F), some classic car related.

3D printing for the channel knob wont hold up, there is a fair amount of torque on the shaft, unless you bend the spring clip to reduce the indent considerably its not recommended. A call or PM to John Wakley AKA Heatercathodeshort on UKVRR may very well have one.

Posted : 27/11/2021 3:54 pm
helloekco
(@helloekco)
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@freya Yes, that's a good point. I suppose 3D printing is good enough for items like that to just look the part, without withstanding much use. The vast majority of the effort is with building the 3D model, and I suppose producing new copies now and again isn't that much of a hardship, as long as it's your own printer!

(I already tried John a while back, with no luck unfortunately.)

Posted : 27/11/2021 4:39 pm
freya
(@freya)
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Is yours missing altogether ?, i had a T368 with a shattered channel selector,  rebuilt the shaft using metal tube as a sleeve, admittedly it had to be pinned to the turret tuner shaft with a split pin. Easily reversible if a knob was found.

Posted : 27/11/2021 5:23 pm
Jamie
(@jskinner97)
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Posts: 1572
Posted by: @helloekco

This is something I'm very interested in! I've been toying with the idea of getting a printer myself for a while, I just can't think of a good place to keep it. I have a small list of things I need it for; some vintage electronics related (e.g. channel knob for my Ekco T344F), some classic car related.

It may well be worth a punt, Stephen's slider is very small... A few mm thick, so it won't be the strongest part, this is presumably why the originals are so tender and missing/broken on almost every Sharp of this model... A channel knob would have some considerable amount of material around the shaft, spreading out the load. Strengthening parts can also be added, if it has a metal part already then that can be transferred to a 3D Print.

The resin I am using is likened to ABS Plastic, sharing almost identical qualities. 
This is the one I use - https://www.amazon.co.uk/ELEGOO-405nm-Rapid-Printer-Photopolymer/dp/B07FD818JW/ref=asc_df_B07FD818JW/?tag=googshopuk-21&linkCode=df0&hvadid=310804172596&hvpos=&hvnetw=g&hvrand=13350630082385177322&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=1006751&hvtargid=pla-626636036397&psc=1

I also have slightly more flexible resins which allow a small amount of movement, rather than "shattering" so to speak.

Topic starter Posted : 27/11/2021 6:59 pm
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helloekco
(@helloekco)
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Posted by: @freya

Is yours missing altogether ?, i had a T368 with a shattered channel selector,  rebuilt the shaft using metal tube as a sleeve, admittedly it had to be pinned to the turret tuner shaft with a split pin. Easily reversible if a knob was found.

Yes, I'm afraid it is. I do have the channel knob on my other set though, as a template. I'd certainly have a go at recreating the metal insert from a piece of sheet metal.

 

Posted : 27/11/2021 8:57 pm
Jamie
(@jskinner97)
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Posts: 1572

Finished article... They're not perfect, but never will be, it's £250 worth of printer, not £2500. Was more an experiment to see if hard-to-find parts can be created.

Due to the time needed per 3D Design, I will be withdrawing this service for now, however please PM me if anyone would like more information and I may be able to sort something in the near future.

Mods/admin please close this thread.

slider2
slider1

Topic starter Posted : 30/11/2021 10:09 pm
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crustytv
(@crustytv)
Vrat Founder Admin
Posts: 10842

Jamie, that is superb 👍

Even more so when, as you rightly point out, you had to build all that in CAD first, not a quick or simple task. I know I've had a play, just doing a cog, relatively simple to what you did, is a lot of work. Time invested over return, makes it really only viable for doing things for yourself, folk may want the parts but unlikely to pay what, you really should get for such effort.

As requested, thread closed. If you want it opened again, just ask.

Posted : 30/11/2021 10:24 pm