Well, I think, prototyping stage for laser spirograph project is over and it's time to release final design for DIY community.
For final controller I've ordered factory-made double sided PCB with lovely green solder mask (people always wonder why my home-made PCBs are not green ;-))
|PCB fabricated by Futurlec|
PCBs are made by Futurlec. It's my first order from this Thailand based company and I'm quite happy with quality of work and service. Lead time is about one week. There's no minimum order but price is really good if to order in quantity.
Along with Gerber file format they accept files from most PCB CAD software like Altium, Eagle, Orcad, Protel. Within days they send back images of processed PCB layers for confirmation and correction (if needed) and within week manufacture PCBs.
And yes, they sell parts too ;-)
|Easy setup. Just plug and play.|
Controller is provided assembled and requires minimal set up.
Voltage for laser module is adjustable (POT R14) within 2 - 4V and should be set before connecting laser.
Controller supports 5V and 12V fans with maximum current 300 mA. Voltage is selected by jumpers (W1 and W2) on board.
For 5V W1 - open, W2 - close.
For 12V W1 - close, W2 - open.
Spirograph requires 12V 1A DC power supply to operate but if it's intended to work only with 5V fans then it can be powered with 7 - 9V 1A DC power supply.
Any other optional stuff like ON-OFF power switch and fancy LED indicators can be easily added to enhance overall appearance.
|New generation of portable laser show.|