Turn-key PCB assembly services in prototype quantities or low-volume to mid-volume production runs

Low cost home made plotter project

Probably many of you are thinking about how cool is to have CNC plotter or 3D printer. There kits and ready printers available for reasonable price. But still they are pricy for hobby use. But nothing is lost you like to build stuff. Hobbyprojects.com posted his progress in building plotter where he wanted things to be cheap and simple. He’s build all part separately by finding simplest and cheapest solution to rising problems. Some of his parts came from Epson printer. He also purchased used stepper motors from local junk store. The electronics part he built around PIC16F877 microcontroller. He built his own motor driver circuit out of discrete components, but it seems that results aren’t as good as it would be with specialized chips like Allegro A3984. Connection to PC was implemented via optocouplers. Several LEDs indicate each motor activity. Continue reading

A Magnificent X-Y Plotter

Do you wish to have an X-Y Plotter, which it operates in two axes of motion (the ‘X’ and ‘Y’) by helping you to draw those continuous vector graphics? Since most of the standard plotters only has one control “Y” axis, this additional “X” axis will bring a big different. Today, you will have the chance to create your very own X-Y plotter, but it does need a little bit modification by yourself. If you have limited budget, you can uses those components that were salvaged from any types of old scanners, but the amount must be in a pair. Those components that needed for this project are: Belts Motors Driver boards Stepper motors When you’re combined all the above components, it will give you a resolution of 16 micrometers per step, which is a whole lot better accuracy than what you expected here. Continue reading