CNC 3018 upgrade with BLDC motor spindle with ER8 spring collet chuck

prusaprinters

<p>I upgraded my cheap chinese CNC with end swithes following this design:<br/> <a href="https://www.thingiverse.com/thing:2796202">https://www.thingiverse.com/thing:2796202</a><br/> But standard brush motor produces so much noise, that inputs of GRBL controller board was triggered immediatelly when motor started, so upgrade with end switches seems to be not usable at all.<br/> Based on ANT PCB mill machine I make my own design with BLDC motor powered spindle.<br/> It is fully compatible substitution of original 43 mm motor delivered in CNC 3018 assembly.</p> <p>For assembly It is needed:</p> <p>1x BLDC motor (i used RAY brand) C3536-1250</p> <p>1x ESC controller 40A with BEC (also I use RAY brand)</p> <p>1x ER8 60L Collet Chuck Holder extension rod/bar Straight Shank for CNC Milling</p> <p>1x ER8 1/8" 3.175mm Spring Collet For CNC Engraving Machine &amp; Milling Lathe Tool<br/> 2x 626 ball bearing</p> <p>1x Multi Servo Tester 3CH ECS Consistency Speed Controler Power Channel CCPM meter Master Checker RC Dron Helicopter Parts RC Hobby</p> <p>3x M3x40 mm DIN 912<br/> 2x M3x 30 mm DIN 912<br/> 4x M3x 10 mm DIN 912<br/> 2x 2,2x6,5 mm DIN 7981C (for servotester PCB)</p> <p>2x O ring rubber 45 mm</p> <p>1x 4 mm COLLET PROP ADAPTERS MPjet 4703</p> <p>1x 6 mm COLLET PROP ADAPTERS MPjet 4706</p> <p>It needs just 12VDC power supply ( not 24VDC! ).</p> <p>Assembly fits to the original Z axis holder, so any other adjustent is needed.</p> <h3>Print instructions</h3><h3>Category: Robotics Summary</h3> <p>I upgraded my cheap chinese CNC with end swithes following this design:<br/> <a href="https://www.thingiverse.com/thing:2796202">https://www.thingiverse.com/thing:2796202</a><br/> But standard brush motor produces so much noise, that inputs of GRBL controller board was triggered immediatelly when motor started, so upgrade with end switches seems to be not usable at all.<br/> Based on ANT PCB mill machine I make my own design with BLDC motor powered spindle.<br/> It is fully compatible substitution of original 43 mm motor delivered in CNC 3018 assembly.</p> <p>For assembly It is needed:</p> <p>1x BLDC motor (i used RAY brand) C3536-1250</p> <p>1x ESC controller 40A with BEC (also I use RAY brand)</p> <p>1x ER8 60L Collet Chuck Holder extension rod/bar Straight Shank for CNC Milling</p> <p>1x ER8 1/8" 3.175mm Spring Collet For CNC Engraving Machine &amp; Milling Lathe Tool<br/> 2x 626 ball bearing</p> <p>1x Multi Servo Tester 3CH ECS Consistency Speed Controler Power Channel CCPM meter Master Checker RC Dron Helicopter Parts RC Hobby</p> <p>3x M3x40 mm DIN 912<br/> 2x M3x 30 mm DIN 912<br/> 4x M3x 10 mm DIN 912<br/> 2x 2,2x6,5 mm DIN 7981C (for servotester PCB)</p> <p>2x O ring rubber 45 mm</p> <p>1x 4 mm COLLET PROP ADAPTERS MPjet 4703</p> <p>1x 6 mm COLLET PROP ADAPTERS MPjet 4706</p> <p>It needs just 12VDC power supply ( not 24VDC! ).</p> <p>Assembly fits to the original Z axis holder, so any other adjustent is needed.</p> <h3> Print Settings</h3> <p><strong>Printer Brand:</strong> Prusa</p> <p><strong>Printer:</strong> I3 MK3S</p> <p><strong>Rafts:</strong> No</p> <p><strong>Supports:</strong> Yes</p> <p><strong>Resolution:</strong> 0,2 mm</p> <p><strong>Infill:</strong> 40%</p> <p><strong>Filament:</strong> PM filaments PETG any<br/> <strong>Notes:</strong></p> <p>support setup 1°<br/> 3x perimeter</p> <h3> Post-Printing</h3>