Search found 40 matches

by flyboy74para
Fri Dec 13, 2019 7:42 am
Forum: Projects
Topic: Tesla coil playing music
Replies: 10
Views: 851

Re: Tesla coil playing music

First thanks for you input. I am fairly low knowledge when it comes to the electronics side of things but do reasonably well on the MCU programming side of things. The DRSSTC (Doubly Resonant Solid State Tesla Coil) has a low duty cycle, with the pulses lasting between 50 to 200 microseconds, and th...
by flyboy74para
Thu Dec 12, 2019 9:40 am
Forum: Projects
Topic: Tesla coil playing music
Replies: 10
Views: 851

Re: Tesla coil playing music

I built a dual resonant solid state Tesla coil. I put the PCBs on-line as open source https://github.com/profdc9/DRSSTC-PCB-Pack I use the ATTINY85 interrupter that takes Midi files. Here's an example of my coil playing: https://www.youtube.com/watch?v=RaoAdWsovrY&list=PLTUAyZXFxfe-2GhKLFKQYFCd5HA2...
by flyboy74para
Tue Dec 10, 2019 4:24 am
Forum: Projects
Topic: Holonomic robot
Replies: 0
Views: 176

Holonomic robot

I had lots of fun working out the math for my Holonomic robot see my video here https://www.youtube.com/watch?v=wwQQnSW ... e=youtu.be
by flyboy74para
Wed Dec 04, 2019 7:34 pm
Forum: Projects
Topic: Tesla coil playing music
Replies: 10
Views: 851

Re: Tesla coil playing music

+1 nice :D i did a smaller / simpler one that plays rtttl tunes on stm32duino libmaple core here https://www.youtube.com/watch?v=uUC695nTkXw https://github.com/ag88/stm32duino_rtttl OK that is quite interesting. I hadn't seen RTTTL player before. This is much the same as the signal that I am sendin...
by flyboy74para
Tue Dec 03, 2019 7:27 am
Forum: Projects
Topic: Tesla coil playing music
Replies: 10
Views: 851

Re: Tesla coil playing music

I am not the first to create music with a Tesla coil see https://www.youtube.com/watch?v=-f6GijQXaBI&t=70s But as far as I can tell I am getting much clearer tones than anyone else. Most people just try to alter standard audio to sound better then send the output to the Tesla coil but a Tesla coil i...
by flyboy74para
Mon Dec 02, 2019 8:49 pm
Forum: Projects
Topic: Tesla coil playing music
Replies: 10
Views: 851

Tesla coil playing music

I have used a timer on a STM32F4 to create square waves at freq of music notes to be able to play music on my Tesla coil.

See https://www.youtube.com/watch?v=-upXNRTEMkQ
by flyboy74para
Fri Nov 01, 2019 3:06 am
Forum: Off topic
Topic: Buying a CNC
Replies: 5
Views: 654

Re: Buying a CNC

Yes Mack3 or mack4 or LinuxCNC is pretty much the only software anyone uses on the main CNC forums. Wood is certainly the easiest thing to cut and aluminum being the hardest (much smaller tolerances than steel). The flex of the machine as well as the power of the spindle will govern depth of cut. Wo...
by flyboy74para
Thu Oct 31, 2019 9:45 pm
Forum: Off topic
Topic: Buying a CNC
Replies: 5
Views: 654

Re: Buying a CNC

I have played a bit with CNC and have a few different machines. Basically first you need to decide what you want to cut (aluminum, steel, wood). As depending upon what you want to cut how big a machine you need. If your cutting steel then it needs a spinal with low RPM and high torque to cut wood an...
by flyboy74para
Sun Oct 06, 2019 7:56 pm
Forum: General discussion
Topic: some stepper fun on a maple mini - 28BYJ-48
Replies: 10
Views: 1410

Re: some stepper fun on a maple mini - 28BYJ-48

U can create micro stepping by instead of just turning on a pin with digitalwrite you use PWM and with each micro step you increase the width of the duty until the pin is completely on. This of course gives a much smoother movement from lots of little steps instead of the sudden complete full step. ...
by flyboy74para
Fri Oct 04, 2019 7:32 pm
Forum: General discussion
Topic: some stepper fun on a maple mini - 28BYJ-48
Replies: 10
Views: 1410

Re: some stepper fun on a maple mini - 28BYJ-48

The other problem that I have found with steppers is that you really need to use micro stepping or the vibration in the turning of the motors is awful. Although it is possible to create micro stepping using PWM duty width, using a stepper driver that has built in micro stepping as well as amp choppi...