Hole and hot glue. Used bezels once because I had a panel drilled for them, but never really saw the point.
4 Likes
A 808 open/closed Hi-Hat drum clone inspired by a design from Eric Archer with an inverting-opamp at outputs for amplify the signal to a modular level
http://www.ericarcher.net/page/2/
My actual Drum Box:
11 Likes
Cool !
Mister Kick (only 4 
)
3 Likes
Ah that’s awesome!
I just finished building the Noise Module from Eddy Bergman (Eddy Bergman.com: Synthesizer Build part-31: NOISE MODULE.) and was wondering if I should put it in 5cm or 2.5cm. I guess I’ll go with 5cm and also put the 4-colour in it 
5 Likes
I have had relatively good luck with 3d printing bezels directly in my plates. If they fail, hotglue does seem to do the trick
5 Likes
Hey @Farabide , your method gave me an idea…! 
I could put a small piece of silicone tape covering the hole behind the panel and stick the LED through the tape.
These tapes are sold in various thicknesses (2-3-5mm…etc…). I believe it would give a good grip because the tape’s adhesive and the elastic properties of the silicone would do a good job.
An adhesive tape with super glue would be very good as a final solution, it is also sold in various thicknesses.
Thank you soo much!
3 Likes
Indeed, hot glue and hole works fine. Even without hot glue: I use a good quality 5mm cobalt drill for 2mm or 3mm thick aluminium panels and the LEDs all have a nice tight fit, so that I can still push them out with a bit more force 
but I have a few old cheaper LEDs which are a bit too lose, for them I just put hot glue. Don’t forget to preheat the metal a bit, otherwise the glue will fall off easily; and of course clean it first with isopropyl alcohol (or something similar).
5 Likes
That thick clear sticky tape stuff is superb with piezo pickups and as a dry or wet/oily surface to play on with fingers into a piezo. Adds great highlights to cymbals and percussion too.
2 Likes
good tips , a hot glue master there .
6 Likes
I have a bezel punch tool for knocking out slightly raised edges but it was made in the day of massive and dim LEDs and is useless now. You just put it on the back of a panel and hit it to make a sort of inverse counter sink. ( Or is that just a sink?)
5 Likes
I will try this for sure! 
2 Likes
7 Likes
Just got the final parts for an @analogoutput FFB, I was waiting on the green faders before I posted a picture.
11 Likes
Drum machine progress;
the rack growing up quietly…
List of modules: (left to right)
- Craig Anderton’s Hip Bass Drum
- TR-808 Kick by Juanito
- Twin-T Kick by @Krakenpine
- drumBs (circuitbenders)
- DR-55 rimshot
- DR-110 open/closed Hi-hat/Cymbal clone
- TR-808 o/c Hi-Hat by Eric Archer
- CR-78 Snare clone
- TR-606 Snare clone
- Sidechain/ducking effect by Juanito
- CGS18 Drum Simulator by Ken Stone
- 6 Channel audio Mixer
- Master output (mono/stereo inputs,
R/L line-out, headphone output, vu-meter)
and this one is my cockpit for driving all of them !
Modules:
- 555 Dual Master Clock generators: (Start/Stop, Tempo/PW (swing), manual clock, sync input, 2x clock outputs, inversed clock output (NOT gate), 0,8mS trigger output
- 3 channels/8 steps Trigger-Sequencer
- Clock Divider (/1/2/4/8/16/32)
- Clock divider (/3/5/6/7)
- Random Gates (with white noise)
- Piezo Drum trigger/cv controller
(internal or external piezo trigger) - Beat Follower/Staircase CV generator
- Gate to Trigger converters (0,8mS/1,2mS/1,8mS)
- Gate buffered Mult (2x3/1x6)
- Pulse Burst generator by Thomas Henry
- Pulse Delay
- Balter VC Gate Delay by NLC
- Boolean Logic gates 1 (OR/AND)
- Boolean Logic gates 2 (XOR/XNOR/NOT)
- Mini-Beat Logic
- EITHER-OR Logic passive/x8 Gates combinated
- kill-switch (mute switch)
13 Likes
9 Likes
3 Likes
So its kinda hard to explain… but -
It is 4 Oscillators on top - both generate squares and triangles and inverted squares and inverted triangles - they modulate eachothers boundaries (BOUNDS) with the first setting High Boundaries (Oscillator Peak - max threshold around 8.5v) and the last setting its lowest boundaries - But they like to switch back and forth and modulate one another - Pots set upper and lower bounds and freq.
This UPPER set of Four Horses (FOURSES) feeds the Intersexon Triangles.
Middles Section is the INTERSEXON for the Upper 4 Oscillators and the Lower 4 Oscillators and acts kind of like a Sample and Hold - but with fast switching.
The LOWER set of FOURSES feeds the Intersexon Squares.
It is like sending a ball through a greased tube, with only enough room for the ball to move forward, but the balls are bouncing off of one another…
So 8 Oscillators of intense noise…
The UPPER section generates the Angles
The LOWER section generates the Rhythm.
Some more info can be had here
https://www.ciat-lonbarde.net/fyrall/paperz/fourses/index.html
These are the schems I went by to make it 
5 Likes
One of the really neat things here is the voltage starving circuit…
Peter calls it SPESAL CUCK… as the instrument sways to the whims of the CUCK… lol.
3 Likes
Yes. It is.
For certain values of “info”… 
3 Likes
A lot of nice things here !!!
5 Likes