Search found 302 matches

by Fela Borbone
Sat May 02, 2026 11:09 am
Forum: Experimenters' & Innovators' forum
Topic: The dark art of diamond sharpening
Replies: 117
Views: 73346

Re: The dark art of diamond sharpening

I can't find It anymore,
Thanks Alexsation for sharing...
Why stones are grinded whitout shank?
by Fela Borbone
Sat May 02, 2026 11:05 am
Forum: Experimenters' & Innovators' forum
Topic: The dark art of diamond sharpening
Replies: 117
Views: 73346

Re: The dark art of diamond sharpening

I used this varnish, I think is similar, i baked it with a big infrared lamp
by Fela Borbone
Tue Feb 03, 2026 5:51 am
Forum: Experimenters' & Innovators' forum
Topic: A Very Basic Record Lathe
Replies: 21
Views: 44369

Re: A Very Basic Record Lathe

Amazing suspension box! Well done
by Fela Borbone
Tue Jan 27, 2026 2:12 pm
Forum: Secrets of the Lathe Trolls
Topic: Grampian hot stylus adaptor
Replies: 8
Views: 2172

Re: Grampian hot stylus adaptor

It may be imperial thread, but I used M2.5 (metric) and it worked
by Fela Borbone
Fri Jan 09, 2026 8:47 am
Forum: Experimenters' & Innovators' forum
Topic: My DIY stereo lathe diary - design and build
Replies: 31
Views: 5599

Re: My DIY stereo lathe diary - design and build

Hello Zdenda, ​A mechanism for servo-controlling stylus pressure may consume significant time and resources, so you might want to focus on making it work smoothly, quietly, and accurately first. But as we are talking about measuring and controlling pressure,I have to say it is doable; I tried using ...
by Fela Borbone
Thu Dec 04, 2025 3:00 am
Forum: Experimenters' & Innovators' forum
Topic: help with this V-spring desing
Replies: 7
Views: 652

Re: help with this V-spring desing

A dynamic microphone and a speaker are more or less the same thing, coil ,magnet, membrane... only size and impedance change.In fact, and old DJ trick is to plug the headphones in the mic input and speak thru them. So, you use the speakers as microphones,record in a computer, tap or pluck in the mov...
by Fela Borbone
Wed Dec 03, 2025 6:01 pm
Forum: Experimenters' & Innovators' forum
Topic: help with this V-spring desing
Replies: 7
Views: 652

Re: help with this V-spring desing

Well, Spring steel or alike is easy to find in many old devices, (like the ribbon that rolls back the cable of vacuum cleaners). But is brittle, if you want to machine it, first heat red hot and let cool slowly. Then is easy to machine. If then heat again, but cool it fast in cold water or oil, beco...
by Fela Borbone
Wed Dec 03, 2025 3:11 am
Forum: Experimenters' & Innovators' forum
Topic: help with this V-spring desing
Replies: 7
Views: 652

Re: help with this V-spring desing

Hello, The V-spring is meant to restrict the movement of the torque tube only in the direction that the coils push and pull, preventing it from twisting. Regarding stiffness, you have to consider the overall stiffness of the system (coil support and V-spring), which will determine the resonance of t...
by Fela Borbone
Sun Jul 06, 2025 12:29 pm
Forum: Experimenters' & Innovators' forum
Topic: Semar choice 😁🔥
Replies: 131
Views: 77522

Re: Semar choice 😁🔥

Pm sent
by Fela Borbone
Thu Jul 03, 2025 6:53 am
Forum: Secrets of the Lathe Trolls
Topic: $20 for LT 20th Anniversary
Replies: 12
Views: 4696

Re: $20 for 20

Happy 20!
by Fela Borbone
Sat May 17, 2025 3:04 pm
Forum: Experimenters' & Innovators' forum
Topic: My DIY Lathe recorder from scratch
Replies: 19
Views: 3651

Re: My DIY Lathe recorder from scratch

I mean the mass that the speakers move,
The parts linking the coil to the stylus, It takes lots of energy to move fast enough big mass.
by Fela Borbone
Sat May 17, 2025 4:36 am
Forum: Experimenters' & Innovators' forum
Topic: My DIY Lathe recorder from scratch
Replies: 19
Views: 3651

Re: My DIY Lathe recorder from scratch

Hola Franco,
You cutter looks good, but keep the moving mass (inside the cutter head)as low as possible, every fraction of a gram counts, thats the trade-off, low mass but as stiff as possible.
Also,instead of acrilic, try policarbonate or petg, they are more easy.
Keep the good work!
by Fela Borbone
Mon Mar 24, 2025 7:05 pm
Forum: Experimenters' & Innovators' forum
Topic: The dark art of diamond sharpening
Replies: 117
Views: 73346

Re: The dark art of diamond sharpening

...but now I do this job by hand with a bricollage drill, regulating the speed gripping the chuck with a leather glove..
by Fela Borbone
Mon Mar 24, 2025 6:47 pm
Forum: Experimenters' & Innovators' forum
Topic: The dark art of diamond sharpening
Replies: 117
Views: 73346

Re: The dark art of diamond sharpening

By the way, another Emco Unimat 3 here, I used it to make carbone fibre shanks, but I'm back to aluminun...
by Fela Borbone
Mon Mar 24, 2025 6:42 pm
Forum: Experimenters' & Innovators' forum
Topic: The dark art of diamond sharpening
Replies: 117
Views: 73346

Re: The dark art of diamond sharpening

Great thread! Thanks a lot, Estrada and other trolls posting here and sharing..This is gold. I made tungsten point stylus for embossing, worked great., Tried diamond but my results were not good... slow coarse grinding and bad finishing. I used the wrong equipment, didn't dig too much, give up early...
by Fela Borbone
Mon Mar 03, 2025 5:12 pm
Forum: Experimenters' & Innovators' forum
Topic: G.C.M.R Record Lathe
Replies: 17
Views: 23489

Re: G.C.M.R Record Lathe

Nice machine!
by Fela Borbone
Sat Mar 01, 2025 5:54 am
Forum: Experimenters' & Innovators' forum
Topic: Semar choice 😁🔥
Replies: 131
Views: 77522

Re: Semar choice 😁🔥

Tungsten+Policarbonate = emboss
Weight, lots till you get a traceable groove (you dont damage the stylus,don't worry) then lift slowly till you get no surface noise.
Heat, I dont really need it, others may prefer to use. Just don't record in a too cold room.
by Fela Borbone
Tue Jan 28, 2025 10:47 am
Forum: Vinyl Mastering, Lacquer cutting, Pro's and others
Topic: Elasticstage - short run record production
Replies: 28
Views: 71204

Re: Elasticstage - short run record production

This is an interesting enterprise, not as new as they claim, but certainly robotized and more efficient. Why they dislike the word 'dubplate' is a mystery. Anyway, it's a good option for artists, who won't have to bother selling their records themselves (though I wonder if they'll receive copies for...