FabScanPi Sandwich Box

prusaprinters

<p>This is a alternative box for the FabScanPi (2016 - ) using the latest hardware including raspi 3, raspicam V2 (8MP) and FabScanPi-HAT. You can find all details about the FabScanPi on the <a href="http://fabscan.org">http://fabscan.org</a> Website.</p> <p>This thing is called "sandwich-box" because of the used sandwich material for the box panels.</p> <p>Instead of the original box which consists of plywood this design is using 2020 standard aluminium profiles in addition with sandwich-material (alu-PET-alu) panels for the box element.</p> <p>The big advantages of this design are the flexibility which can be used to improve the scanner and to keep up with new components and allows own changes.</p> <p>You can either use servos or stepper-motors for the laser rotation. The holes in the bottom plate need to be the same as for NEMA17 steppers.</p> <p>The outer dimensions are about 32 x 32 x 32 cm. The usable space in the inside is about 26 x 26 x 26 cm.</p> <h3>How I Designed This</h3> <p><strong>Bill of material</strong></p> <div><p>You'll need the following parts to build your own fabscan sandwich box:</p> Aluminium profile 2020 type (same as used for MendelMax 1.5) <p>4x 300mm length (one end with M5 thread)</p> <p>12x 260mm length</p> <p>1x 230mm length (both ends with M5 thread)</p> <p>Sandwich panels (alu-PET-alu) 3mm-type, black color</p> <p>1x 300mm x 300mm (base)</p> <p>3x 294mm x 200mm (sidewalls)</p> <p>1x 180mm x 254mm (front)</p> <p>1x 294mm x 254mm (top)</p> <p>~80x screw socket head M5 x 10mm</p> <p>~80x nuts M5, slider-type for 2020 profiles</p> <p>4x screw socket head M5 x 20mm</p> <p>Printed parts:</p> <p>7x lower corner element</p> <p>1x lower corner element with raspi-slot</p> <p>2x upper corner A</p> <p>2x upper corner B</p> <p>4x screw hide (printed / painted in black color)</p> <p>1x flap corner A</p> <p>1x flap corner B</p> <p>1x stepper mounting</p> <p>1x platform holder</p> <p>2x angle connector (or 4x for less torsion)</p> <p>1x camera mounting</p> <p>1x servo mounting R</p> <p>(1x servo mounting L) when two lasers / servos are in use</p> <p>1x (or 2x) laser cradle</p> <p>1x raspberry-pi mounting</p> <p>optional:</p> <p>1x handle</p> <p>4x profile end piece ( <a href="https://www.thingiverse.com/thing:248025">http://www.thingiverse.com/thing:248025</a> )</p> <p><strong>Working Progress (Blog)</strong></p> <p>31 May 2016</p> <p>Box component design finished.</p> <p>03 Jun 2016</p> <p>Aluminium profiles, sliding nuts arrived.</p> <p>04 Jun 2016</p> <p>First assembly of the profiles. I had to buy M5x12 screws because parts were too thick for M5x10 and too thin for M5x16.</p> <p>05 - 07 Jun 2016</p> <p>Design and test print of the stepper holder, angle connector and table holder sucessful.</p> <p>09 Jun 2016</p> <p>First version of Laser cradle design and camera mounting finished.</p> <p>I am still waiting for the ordered black sandwich panels.</p> <p>10 Jun 2016</p> <p>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.</p> <p>14 Jun 2016</p> <p>Design of SG90 servo- and raspi- mounting finished.</p> <p>I also got the sandwich panels and can start the assembly tomorrow.</p> <p>16 Jun 2016</p> <p>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 reflextions).</p> <p>18 Jun 2016</p> <p>Upload of the raspberry-pi mounting and the appropriate lower corner element.</p> <p>04 Aug 2016 Hardware is finished, including the new FabScanPi HAT.</p> <p>08 Jan 2017 Updated Rasberry-Pi holder - removal of SD-Card was improved.</p> <p>25 Jun 2017 Added a customized holder for the calibration pattern sheet for Software 0.4.0 and beyond.</p> </div> Category: 3D Printing