FabScanPi Sandwich Box

thingiverse

This is an alternative enclosure for the FabScanPi (2016-) using cutting-edge hardware, including the Raspberry Pi 3, Raspicam V2 (8MP), and the FabScanPi-HAT. You can find all details about the FabScanPi on the http://fabscan.org website. The enclosure is called a "sandwich-box" due to its use of sandwich material for the box panels. Instead of the original box, which consists of plywood, this design utilizes 2020 standard aluminum profiles in addition to sandwich-material (alu-PET-alu) panels for the box element. The big advantages of this design are its flexibility and ability to keep up with new components, allowing for personal changes. You can either use servos or stepper-motors for laser rotation. The holes in the bottom plate need to be identical to those used for NEMA17 steppers. The outer dimensions of the enclosure are approximately 32 x 32 x 32 cm, while the usable space inside is about 26 x 26 x 26 cm. I Designed This Bill of Material To build your own FabScan sandwich box, you'll need the following parts: Aluminum profile 2020 type (similar to that used for MendelMax 1.5) 4x 300mm length (one end with M5 thread) 12x 260mm length 1x 230mm length (both ends with M5 thread) Sandwich panels (alu-PET-alu) 3mm-type, black color 1x 300mm x 300mm (base) 3x 294mm x 200mm (sidewalls) 1x 180mm x 254mm (front) 1x 294mm x 254mm (top) ~80x screw socket head M5 x 10mm ~80x nuts M5, slider-type for 2020 profiles 4x screw socket head M5 x 20mm Printed parts: 7x lower corner element 1x lower corner element with raspi-slot 2x upper corner A 2x upper corner B 4x screw hide (printed/painted in black color) 1x flap corner A 1x flap corner B 1x stepper mounting 1x platform holder 2x angle connector (or 4x for less torsion) 1x camera mounting 1x servo mounting R (1x servo mounting L) when two lasers/servos are in use 1x (or 2x) laser cradle 1x raspberry-pi mounting Optional: 1x handle 4x profile end piece (http://www.thingiverse.com/thing:248025) Working Progress (Blog) 31 May 2016: Box component design finished. 03 Jun 2016: Aluminum profiles, sliding nuts arrived. 04 Jun 2016: First assembly of the profiles. I had to buy M5x12 screws because parts were too thick for M5x10 and too thin for M5x16. 05-07 Jun 2016: Design and test print of the stepper holder, angle connector, and table holder successful. 09 Jun 2016: First version of Laser cradle design and camera mounting finished. I am still waiting for the ordered black sandwich panels. 10 Jun 2016: Upload of camera mounting and laser cradle. Next will be the servo holder then the raspi mounting. Waiting for specific details about dimensions from Mario. 14 Jun 2016: Design of SG90 servo- and raspi-mouting finished. I also got the sandwich panels, and can start the assembly tomorrow. 16 Jun 2016: Upload of modified flap corner parts as well as the servo mountings and a cap for the M5 screws within the scan-box (to prevent reflections). 18 Jun 2016: Upload of the raspberry-pi mounting and the appropriate lower corner element. 04 Aug 2016: Hardware is finished, including the new FabScanPi HAT. 08 Jan 2017: Updated Rasberry-Pi holder - removal of SD-Card was improved. 25 Jun 2017: Added a customized holder for the calibration pattern sheet for Software 0.4.0 and beyond.