The Secret Society of Lathe Trolls

We continue and have restored our laboratory. We replaced the linear drive with another one, and now the player is a new Technics SL-1500C. No torque tweak yet. We modified our cutting head a little. The speakers have been completely rebuilt, the diffusers have been re-glued, and the gaps have been ...

Thomas, thank you for all your hard work! And also for sharing all this with us!

Thank you, we have more than a dozen spare speakers! Tomorrow we plan to start collecting a new copy. While in the same form, the design is functional. The main forces were devoted to the development of their diamond cutters. We already have good results. I'll be sure to post information later.

Just read it, Thomas. Very cool and detailed written! I was always interested in how this was implemented (variable groove pitch) in professional cutting recorders. For myself, I decided to deal with this when our cutting recorder records perfectly with a constant groove pitch. But your solution wit...

Thomas, Alfred - thank you for your support, it is very important!

By the way, today, during experiments, the tweeters in the cutting head burned out for the first time. I started a 20Hz-20kHz sweep tone, and the level on the amplifier was at maximum. Smoke and puff, the speakers are in the trash!

I think this means closing this forum . My heart was already shaking when I watched the video, and then read the article on the Prusa blog, and then from the comments I saw a message about an April Fool's joke!!!

Hello Thomas. I see significant progress in your project. Glad to see you still have the energy and drive to continue. I agree with you that many here read more than write. And without feedback, many enthusiasts quickly burn out. And since I write quite rarely myself, I will correct myself. After al...

Hi all 🫡. I would like to check in and inform you that we are returning to the active phase of work on our cutter. In the coming month, I will again be happy to share our results. The reason for our absence is banal - war. We had to change plans dramatically and only now have we found the opportunit...

Sorry for the silence. For various reasons, I had to be temporarily absent. So, we have moved towards experiments with diamonds. We managed to get a few more uncut stones. We got the first results, but we haven't cut yet. I am attaching a few photos with unsharpened blanks and sharpened, but not yet...

Hello everyone, we continue to work, but there is nothing to show yet. We are redesigning our cutter a bit. We also receive various equipment that we ordered earlier. So, as I said, we are experimenting with styluses. We were given an artificial diamond of almost 16 carats and we will make styluses ...

Great job, a lot of work, head looks very professional 👍. Excellent sound, very balanced, sufficiently high level, low surface noise. I missed the highs of the Black Lips a little and when I listen with headphones there is a sense of overload or distortion. New Order and Eminem sounded very good (th...

tragwag farmersplow Thanks guys! Your feedback is very important to us! Your experience and posts on the forum have given me a lot of useful things! A few more PETG embossings with the same head but with our tungsten carbide re-sharpened stylus, heating was also applied a little (photo from the the...

Well, today - April 18, 2023, we finally achieved a significant result! Surface noise is still significant, but we'll deal with it later. Tomorrow we will start making the second version of the suspension. To do this, we will assemble a new design. We have two more linear drives. Just yesterday I wa...

Today I participated a little in the process of working on our future lathe. So we made a torque tube from aluminum and a V-spring from spring steel from a stencil (we have a lot of it, we order a lot of electronic boards). In this version, we made the stylus mount at an angle for embossing. Later w...

As you understand from the previous photo - the head covered with polyurethane - "did not play as it should", or rather, did not start recording better. Sorry for the long break in messages. Those who have children will understand me. My wife got sick and I was constantly with our children. But our ...

Dublicate previous message. Delete, please .

IMG_7053.jpeg And here is the «miracle» amplifier! It costs $50 on Alibaba. The only thing this trickster did was put in an LED indicator and changed the knobs. https://m.alibaba.com/p-detail/detail-1600238905122.html Individual elements, cheap equalizers, indication are also available there. Of co...

Forgot. Tonight my colleague decided to dampen our head. Tomorrow we will remove the excess polyurethane and check!

He sent me a photo of what it looks like now! I hope it's dry until tomorrow.

We continue our experiments 🥳🤣 We had to open one of the tweeters and restore it. We completely reassembled the head and tried to cut it with a sharpened ruby ​​on PETG. It was very noisy, we didn't do the heating🤧. At the same time, embossing through the spread of the ruby ​​gave a minimum of noise...

Many people like shiny things. Shit can shine too! The video shows the same shiny speaker systems with cheap full-range speakers, a cheap turntable with a cheap head. On the supposedly “fully automatic” recorder, there are indistinct level indicators from Aliexpress, and in the era of color touch sc...