Linear rail for Prusa i3 Bear upgrade

prusaprinters

<p>Those are the parts I'm using on my Prusa Bear upgrade...<br/> I'm trying to re-use the U bolt concept.</p> <p>BOM:</p> <p>12) Flat Socket Cap Screw M3-4mm<br/> 6) Flat Socket Cap Screw M3-12mm<br/> 26) Socket Head Cap Screw M3-8mm<br/> 26) M3 Sliding T Nut - Zinc Plated<br/> 6) Nylon Hex Nut M3<br/> 32) Button Head Screw M5-10mm<br/> 8) Low Head Cap Screw M5-8mm (for the rail holder)<br/> 40) M5 Sliding T Nut<br/> 4) T Joining Plate<br/> 6) Angle Corner Connector<br/> 2) 20x40 Aluminum Extrusion 331mm<br/> 2) Linear Guide: Length 370mm, Width 12mm<br/> 2) Standard Block for linear rail: Unit Height 13mm (left side)<br/> 1) Long Block for linear rail: Unit Height 13mm (right side)</p> <p>Liquid plastic adhesive UV.</p> <p>After you printed the 3 spacers, you have to modify the 6 flat socket cap screws with a File as in the pic.<br/> Place the screw as in the pic and glued it, please to be sure it's well glued.<br/> The glue don't have to come out from the holes.<br/> All the screws have to be perfect in it, the screw's head don't have to touch anything.<br/> Attach the spacers on the blocks, place the carriage and then lock it with the Nylon Hex Nut.</p> <p>The instructions are complete because I'm doing a Step-by-Step Guide with photos.</p> <h3>Print instructions</h3><p>Rafts: No</p> <p>Supports: No</p> <p>Layer Height: 0.20mm</p> <p>Infill: 20%</p> <p>Perimeters: 4<br/> Top:5<br/> Bottom:5</p> <p>(Same print setting used to print the Y-Rod holder for the Prusa Bear upgrade)</p>