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Switchmaster knob

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The Chad
NeilH
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Post by NeilH Thu Nov 21, 2019 12:57 am

I got the knobs that knicelyr sent last week, but couldn't do anything with them because my gallbladder hose that day to go wonky.
They look great for rough casting. I can't wait to get back in the shop and have a go at them. I think they'll look great.
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Post by NeilH Sun Feb 02, 2020 11:31 pm

I returned to working in my garage for the first time since my surgery. I could have earlier, but it was cold and I’m a wimp. The first job was to start the trim on the aluminum knobs that knicelyr made.
I made a holder out of foamed PVC board, then clamped the knobs in place. It worked a treat. Two of the knobs turned out great, but the 3rd had a void. When the drill bit caught the edge of the void it tore out a bit of unsupported material, so now there’s a hole on the surface. The drilled hole is a bit off-center, but it’s true, so the knob will still work. I can backfill it with epoxy and it’ll be fine. Next operation will be to drill & tap for set screws, then it’s back to the lathe to turn the surfaces. I’ve already prepared an arbor for that.
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Post by corsair Mon Feb 03, 2020 1:57 am

Excellent!!
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Post by Sgt. Vimes Mon Feb 03, 2020 2:00 am

Good stuff!
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Post by Barry Mon Feb 03, 2020 2:17 pm

I'm constantly amazed (and greatly appreciative) of the talented folks who have shown up over the years in our little corner of the Internet to keep our guitar babies working.
Band
Another huge thank to you Rick for diving into all this and making it happen! Dance 1

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Post by knicelyr Tue Feb 04, 2020 2:26 pm

Glad to see they are going to work!
That was a very bad pour Sad
But like Doritos, we can make more Smile
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Post by NeilH Tue Feb 04, 2020 6:35 pm

It may not have been a void, but an imperfection in the alloy. The chips coming out were grainy and brittle once I got 5mm in. The others turned and drilled smoothly and made nice chips.
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Post by Westbone Wed Feb 05, 2020 2:01 am

NeilH wrote:It may not have been a void, but an imperfection in the alloy. The chips coming out were grainy and brittle once I got 5mm in. The others turned and drilled smoothly and made nice chips.
Seems like a bit of 'slag' got in that one.
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Post by NeilH Sun Feb 09, 2020 3:43 pm

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I got the knobs drilled & tapped and made some janky grub screws. I only scrubbed them with Scotch Brite, and didn't fill them with epoxy yet, but couldn't wait to see how they looked black. I used Birchwood Casey aluminum black, but didn't clean or prep it, an didn't didn't stick. It revealed more voids, but those won't show once they're painted black.

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Post by TFi2397856 Sat Apr 04, 2020 4:05 pm

Do you have any more of these? Happy to buy a few from you.

Thank you
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Post by Purge Thu Apr 09, 2020 4:59 pm

A long long time ago, on a website far away... I made some of these. I used silicon molds to make resin casts of the ones on my mint condition Super Headless bass, then milled out the centre for some suitable sized aluminium tube which was then drilled and tapped for the grub screw. Later found that a 6mm hole would give a really tight fit, no need for the grub screw. I have about 50 incomplete ones (Just need the pot shaft hole milled out), they are as close to perfect replicas as I could get. Let me know if you'd like them.





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Post by Sgt. Vimes Thu Apr 09, 2020 5:04 pm

Purge wrote:A long long time ago, on a website far away... I made some of these. I used silicon molds to make resin casts of the ones on my mint condition Super Headless bass, then milled out the centre for some suitable sized aluminium tube which was then drilled and tapped for the grub screw. Later found that a 6mm hole would give a really tight fit, no need for the grub screw. I have about 50 incomplete ones (Just need the pot shaft hole milled out), they are as close to perfect replicas as I could get. Let me know if you'd like them.






I could do with 3 of those beauties if you please!
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Post by Purge Thu Apr 09, 2020 5:17 pm

No problem - well slight one, can't remember your address. PM please.
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Post by corsair Thu Apr 09, 2020 5:37 pm

Ahh.... I remember those!! I believe I have some on an instrument somewhere!!
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Post by knicelyr Fri Apr 10, 2020 11:22 am

Purge,

I am doing similar, can you give me the details on the resin and dye you are using?
I would also like 3 of them.

Thank you,
Rick
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Post by Sgt. Vimes Fri Apr 10, 2020 11:25 am

Purge wrote:No problem - well slight one, can't remember your address. PM please.

Sent a pm, in case you didn't see it Wink
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Post by Purge Fri Apr 10, 2020 3:03 pm

knicelyr wrote:Purge,

I am doing similar, can you give me the details on the resin and dye you are using?
I would also like 3 of them.

Thank you,
Rick
Was using, this was years ago. All I can remember is I got the resin and dye from www.tiranti.co.uk . The resin warped a bit if the grub screw was overtightened, tried experimenting with cold metal casting (30% resin 70% iron filings IIRC) which was too brittle before I settled on the aluminiuminserts or a very slightly too small hole for the pot shaft. PM me your address and I'll send you a few.

Pete (Or should I say Sgt at arms Keel? Ook!) yours should be posted on Monday.
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Post by Sgt. Vimes Fri Apr 10, 2020 3:18 pm

Thanks buddy!
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Post by Purge Fri Apr 10, 2020 3:21 pm

Ook
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Post by Sgt. Vimes Fri Apr 10, 2020 3:21 pm

Tuesday, it's Bank Holiday Monday Very Happy
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Post by Sgt. Vimes Fri Apr 10, 2020 3:24 pm

Purge wrote:Ook

Very Happy
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Post by Purge Fri Apr 10, 2020 3:36 pm

OOK!!!
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Post by Sgt. Vimes Tue Apr 14, 2020 5:49 pm

Purge wrote:OOK!!!
Switchmaster knob - Page 2 BG9J0aK
OOK OOK! 
Thanks buddy, these are incredible!
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Post by bwoodjc89 Fri Oct 27, 2023 8:51 am

I know it has been several years. Are all of these gone?
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Post by Barry Fri Oct 27, 2023 9:51 am

zombie mask You're right, this is a Zombie thread!

I'm sad to say that all the members involved in all this activity have not been active for quite some time.

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Post by bwoodjc89 Fri Oct 27, 2023 10:22 am

I've made one of these knobs on a 3D printer that turned out ok. I'm fairly certain that I got the file on this forum. Need to make another if I can find that file again. I thought a metal one would have been great to have.
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Post by Barry Fri Oct 27, 2023 2:50 pm

You likely did get it here...somewhere.

Several members have made their own SwitchM0aster knobs using various methods, including 3D printing I think.

Our built in search app is not very good. Have a look at Google's "SITE" search parameter results instead and you might find what you're after: LINK

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"A little song. A little dance. A little seltzer down your pants." -Chuckles the Clown
Switchmaster knob - Page 2 Guitar10
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