Vertex-H

thingiverse

After success with my <a href="https://www.thingiverse.com/thing:2854613">VertexEvo project</a>, I started to look for ways to simplify kinematics of Vertex K8400 even further and at the same time (hopefully) increase the print area. It appears H-bot design can help to achieve both these goals. <b>Update 9-Oct 9-2018</b> I am at the early stage of the design and posting the image to show how it may look. Single 9mm GT2 belt is aligned vertically with the centers of both - X and Y axes. MGN12H rails replaced 8mm round roads. I will be updating this post as I progress. Stay tuned and feel free to comment. I am open to your suggestions. <b>Update 15-Oct-2018</b> Completed design. Looks promising :) Started printing parts... <b>Update 23-Oct-2018</b> Assembled and printed few Things. Used the same firmware configuration as for VertexEvo; just changed Xmax, Ymax and Zmax. Had about 50% successful prints. Another 50% failed with printhead shift along XY. It can be caused by insufficient belt tension or too low motor current. Investigating... Meanwhile here is the list of parts (screws not included): - 3pcs MGN12H Linear Sliding Rails 300mm. You will need to cut 2 of them to 280mm length. Bought on eBay from seller renshuiyuan. - GT2 9mm belt 183 cm (6') - 2pcs GT2 Pulley 20 Teeth W=9mm bore 5mm. Bought together with belt on eBay from seller powge - 2pc GT2 Idler Timing Pulley 20Teeth W=10mm, 5mm bore - 4pc GT2 Idler Timing Pulley with no teeth W=10mm, 5mm bore. Bought all 6 pulleys on eBay from seller liansgcun20173 - 2pcs e3d v6 hotend from https://e3d-online.com/ Chinese clones may not fit. I bought MGN12H rail clones and had to disassemble and clean them. Followed these instructions https://www.youtube.com/watch?v=c53sa46C1qQ One rail was completely unusable, but the seller stepped up and sent me replacement for free. <b>Update 28-Oct-2018</b> Layer shift issue was fixed by reducing motor current. Making minor changes to XY clamps and printehead. <b>Update 31-Oct-2018</b> Redesigned PCB and uploaded gerber file. Ordered PCB from https://jlcpcb.com/ Once it arrives will publish the images of assembled PCB. Published all STL files. Will write detailed description and upload actual images later this week. <b>Update 4-Nov-2018</b> Uploaded video showing Vertex-H at work https://youtu.be/o6aHJYE-vaw <b>Update 8-Nov-2018</b> It appears that 25mm fan is not able to cool down e3d. This is causing nozzle clogging. Will need to fit in 30mm fans and redesign the duct. <b>Update 14-Nov-2018</b> This project is complete. I uploaded 24 images of my Vertex-H. I will update few STLs (hopefully) later today and will add description. I designed print head version that uses original PCB from Velleman, so you don't need to order custom PCB.