PCB marker tool head with spring option.

prusaprinters

<p>I recreated this part based on "HyperCube CNC Toolheads" by Tech2C.</p> <p>You will need:</p> <p>screws:</p> <ul> <li>1 x hex M3 20mm (hex head max 5.4mm inner diameter)</li> <li>2 x M3 12-15mm</li> <li>2 x M3 8mm (mounting screws)</li> </ul> <p>nuts:</p> <ul> <li>3 x hex M3</li> <li>1 x rectangle M3 max 5.5mm</li> </ul> <p>rails:</p> <ul> <li>2 x fi8 x 54mm</li> </ul> <p>linear bearings</p> <ul> <li>2 x fi8 x fi15 x 23-24mm</li> </ul> <p>In the base part, there are 2 sets of mounting M3 holes with hole spacing 24mm (in my printer head mount there are M3 holes with that spacing).</p> <p>I'm using the bottom one set.</p> <p>You can use optional light spring 4.2mm x 23mm, but for PCB printing it is not necessary.</p> <p>In my case, the tool head positioned itself at the bottom.</p> <p>Here is video how it works: <a href="https://www.youtube.com/watch?v=xUkn83k69Ts">https://www.youtube.com/watch?v=xUkn83k69Ts</a></p> <p>Also added 2 parts:</p> <ul> <li>PCB holder that helped me to hold properly PCB during print.</li> <li>Z axis modifier that moves up Z zero position about few mm to secure printer hotend during moves over thick PCB. Slide that modifier onto Z axis switch arm if you need that.</li> </ul> <h3>Print Settings</h3> <p><strong>Printer:</strong></p> <p>Geeetech prusa clone</p> <p class="detail-setting rafts"><strong>Rafts: </strong> <div><p>No</p></div> <p><strong>Supports:</strong></p> <p>Yes</p> <p class="detail-setting resolution"><strong>Resolution: </strong> <div><p>0.2</p></div> <p><strong>Infill:</strong></p> <p>25</p> <p><br/> <p class="detail-setting notes"><strong>Notes: </strong></p> </p><div><p>I set suppports:</p> * for base part to 18%, to lightly support spring slot * for pressure part to 0% (default) <h3>Post-Printing</h3> <h3>How I Designed This</h3> <p>I designed it using Onshape web app.</p> </div></p></p> Category: 3D Printer Accessories