The Secret Society of Lathe Trolls

Hi Joel, I use Dayton Audio's 19 mm DAEX19CT-4 coin type exciter.
Regards, Tom

Thanks SC for this valuable warning. I shall add dust extraction.

Tom

Hi Gabriel. I answered your request at https://www.lathetrolls.com/viewtopic.php?f=15&t=9939
Greetings,
Tom

Hi trolls, Gabriel / fonogabor read my thread at https://www.lathetrolls.com/viewtopic.php?f=15&t=9892 and asked me to explain how I grind my tungsten embossing styluses. Here is how: I use 1,6mm tungsten rods, which are in fact TIG welding electrodes. Clamp the rod in a vise at an angle of 15 degre...

Hi trolls, It took some time due to other projects, but I finally got to explore one of my ideas to implement a de-esser . Since I want to make my embosser as analogue as possible, the idea was to take one of my old cassette decks and put the Dolby system to use. While in record-mode the Dolby compr...

I use 2 ball bearings to pivot the head. There's a stainless steel rod connecting the bearings to the frame. The frame is bolted to the linear rail. See pictures.

Hello Bay, I use a simple NE555 pcb as a pulse generator to signal my 8825 stepper driver. An external pot regulates the freq, switches for Dir; Step; microsep. Works great, although there is some rumble from the steppermotor in the recordings. I use a homemade tungsten stylus (presto model) on poly...

Thanks Thomas, let's keep on plowing!
Tom

Thanks! Pictures of the setup are below. The white plastic icecreambox contains the stepper driver and the pulse generator. The switches are for 1. start stepping, 2. direction, 3. switch from 1/32 to 1/4 step. The groove advancement is regulated by the potentiometer that defines the pulse frequency...

Although a lot of tweaking is still required the results with the new head are actually promising and the stereo effect is not too bad - although not like the original input. When testing with tones and white noise I measured results up to 19kHz (max 20dB above noise floor). Here are two music sound...

To review the stylus movement in detail I made a macro video in slow motion by filming at 25 fps, lighting with a strobe light at 300 Hz, and powering the exciters with 295 Hz at 3Volts. The stylus is tungsten 1,6mm. Here is the video:

Hello trolls, I started my journey in January by browsing YT and other sources about creating records. I came across Davids video (Pentlandsound) and that really got me started in February. I do have some experience in audio electronics and simple mechanics so what could possibly go wrong….. I built...