Embossing Printer - automate a manuale machine
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| 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. | ||
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| this is the final machine. | ||
the making of
for some technical background please see Timer DC-Motor Background and Photointerrupter
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| To get some strong motors with batteries, Poweradapter and gear box i bought some cordless screwdrivers and disassembled them. | ||
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| All mechanical parts were laser cut in 3 and 5 mm polyamide. | ||
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| 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. | ||
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| 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. | ||
Article by
Tom Pawlofsky Mai 2010
contact
pawlofsky–AT-arch-DOT-ethz-DOT-ch
please feel free to email any comments, misstakes or improvements.