Hackers Kit for the fablab_ruc_dk_DIY-digitizer

thingiverse

2D capture it's ideal for CNC or laser cutting Saw this design from fablab_ruc_dk. Not having any Encoders I thought maybe I'd play around with some old mice and optical end stops before ordering Encoders from China. The holes are all the right size for the 6mm Shaft 600P/R Incremental Rotary AB phase encoders, plus extra wheels with the 120 degree holes for mounting the laser cut encoders. I haven't made any mounts yet for the mouse innards or opto endstops because this is an experimental hack. Another thought was to try high-grade, high-precision potentiometers in a potential divider circuit and use analog-to-digital (atod) inputs on the Arduino. So here's my hacker-type redesign - encoders based on 0.15mm to 0.17mm laser kerf at 2 degrees spacing, because anything closer wouldn't leave any material left over. I added an Arduino mounting area so everything is kept together on one platform. Original design http://fablab.ruc.dk/diy-digitizer/ Great links for mouse repurposing: https://sourceforge.net/projects/mousesensor/files/ ,http://thedenneys.org/pub/robot/encoders/, http://ferretrobotics.blogspot.co.uk/2011/01/interfacing-optical-mouse-usb-with-pic.html, http://www-bsac.eecs.berkeley.edu/~sbergbre/research/publications/OpticalMouseHack.pdf ,http://diy3dprinting.blogspot.co.uk/2015/05/diy-contact-3d-scanner-with-arduino-and.html ,http://www.wildcircuits.com/2013/03/optical-mouse-hacking.html Instructions: Get 5mm plywood or 3/16th if you're in the US. All holes for fixings and mounting are 3mm screws, with Arduino mounting holes using standard PC motherboard brass standoffs. The captive nut in the T joint is a 3mm half-nut - they seem to work much better than full nuts for these joints. In the UK, it's not possible to get those nice square nuts everyone uses for these T-joints. Vector engrave violet lines with settings 60-80 mms at 20% power on 60W laser. Next laser-cut red lines as holes - settings 9-12 mms at 90% power on 60W laser. Finish with black lines by laser cutting, using the same power and mm settings. http://diy3dprinting.blogspot.co.uk/2015/05/diy-digitizer-with-detailed.html?utm_source=dlvr.it&utm_medium=facebook http://fablab.ruc.dk/diy-digitizer/