Embossing Printer - automate a manuale machine
|i always liked this old-style embossing labeling printers, so i bought one in the next stationer with the aim to link it to my Usb-port by using a arduino microcontroller.|
|this is the final machine.|
the making of
|To get some strong motors with batteries, Poweradapter and gear box i bought some cordless screwdrivers and disassembled them.|
|All mechanical parts were laser cut in 3 and 5 mm polyamide.|
|The motors need a current up to 2A. Therefor a Motordriver is needed.|
Two H-Bridge of Type L6202 (datasheet) with some aluminum cooling elements do this job.
|To have some precise control on the motors position an laser cut encoder wheel is read out with a photointerrupter. The Type GP1A53HR is used (search google) - most important attribute is that the output is a Schmitt trigger. You will find more information and code snippets in this Photointerrupter article.|
Tom Pawlofsky Mai 2010
please feel free to email any comments, misstakes or improvements.