Homebrew PCBs

GREAT!
TNX for the video.
..... looking forward to what you build.
and as gears go....

I am not the only one to run into this problem.
Something as simple as replacing nylon plastic gears with a metal gear
has proven impossible without spending $150 on custom made gears.

http://www.learnmorsecode.com/laminator/royalmods1.jpg
http://www.learnmorsecode.com/laminator/royalmods9.jpg
http://www.learnmorsecode.com/laminator/royalmodsgear1.jpg

and the other gear  issue seems to be that not all synchronous mores use 
a D shaft
so you can buy a $3 motor on ebay but then you have to figure out how to 
get a gear for its round shaft.

All these gear issues really is what pushed me to heavy metal press PCBs:
http://www.learnmorsecode.com/laminator/hotcakes.html




On 12/18/2016 09:22 AM, mosaicmerc@... [Homebrew_PCBs] wrote:
>
> Hi guys:
> Thx for the link to that SPWM controller board Harvey. I have ordered 
> the board and the FETs. I will do a open source Hackaday project on it 
> as a laminator speed control as I get time. It seems all I need to add 
> would be the 170VDC to obtain the 120VAC (170VDC RMS). I plan to do 
> that by using an old PC PSU  to supply the 170VDC (internal tap) and 
> the 5VDC & 12VDC.
>
> As a project I may do a dedicated PIC microcontroller speed control 
> with everything integrated (including a voltage doubler for 220/240VAC 
> motors) as a 'safe' kit to build to deliver the 200mA capability to 
> handle a wide variety of small synchronous motors. Probably housed in 
> a 4" x 2" PVC electrical can with a couple LEDs for status displays.
>
> It seems that most AC Synch. 'spare part'  motors come in the 220V 
> variety.
>
> As I consult for a CNC machine shop company that makes gears, I can 
> inquire as to making a batch of gears, standard size for l aminators 
> and such with set screws. Maybe 6061 aluminum would be durable enough, 
> but certainly mild steel is doable. Oil impregnated bronze might be 
> available.
>
> These two link,below,  on youtube help demo the board and demo how a 
> micro does the job as well..including theory, BASIC code & wiring.
>
> Demo of the sine wave PWM inverter board
> https://www.youtube.com/watch?v=gtmYnbtcPVg
>
> Use a micro to create the sine wave PWM to drive an H bridge
> How to implement an sPWM on arduino/atmel (sinusoidal PWM code and 
> explanation) <https://www.youtube.com/watch?v=Pf2Jx5LMXH0>
>
>
>
> 	
> image <https://www.youtube.com/watch?v=Pf2Jx5LMXH0>
> 	
> 	
> How to implement an sPWM on arduino/atmel (sinusoida... 
> <https://www.youtube.com/watch?v=Pf2Jx5LMXH0>
> Code and documentation can be found here: 
> https://github.com/Terbytes/Arduino-Atmel-sPWM Second part of this 
> video can be found here: https://www.youtub...
> 	
> View on www.youtube.com <https://www.youtube.com/watch?v=Pf2Jx5LMXH0>
> 	
> Preview by Yahoo
>
>