Cyma CM.030 Hopup Arms for R-Hop

prusaprinters

<p>If you are making an R-Hop for your Cyma CM.030 (Glock 18C) and you would like to keep your original hop up arm intact, or if for whatever reason you would need a replacement part, this is the model you are looking for.</p> <p>Use first a 1.3 and then a 1.5 mm drill bit to clear the hole if you print on an FDM printer, but be careful not to break the hinge in the process. You can put the hinge in a vice to prevent it from breaking while turning the drill bit.</p> <h3> Material</h3> <p>I used ABS since I found it being more rigid than PET. I've tried those printed in PETG, but they bend to one side when pressed down by the hopup adjustment wheel. A quick acetone vapor smoothing treatment also helps to improve the material performance.</p> <p>Don't take my word for it - try it and see which one works best for you. It also depends on filament brand.</p> <p>Just don't use PLA - it will melt and bend on the first hot day.</p> <h3> Variations</h3> <ul> <li>Flat A - original shape, no U-nub, for R-hops and similar. Due to a thin arm it tends to bend.</li> <li>Flat B - original shape no U-nub, with a strengthened arm to prevent bending.<h3>Print Settings</h3> </li> </ul> <p><strong>Printer Brand:</strong></p> <p>Prusa</p> <p><p class="detail-setting printer"><strong>Printer: </strong> <div><p>I3 MK3S</p></div><strong>Rafts:</strong></p> <p>No</p> <p><p class="detail-setting supports"><strong>Supports: </strong> <div><p>Yes</p></div><strong>Resolution:</strong></p> <p>0.10</p> <p><p class="detail-setting infill"><strong>Infill: </strong> <div><p>100%</p></div></p> <p><strong>Notes:</strong></p> <ul> <li>ABS (since it is more rigid than PET and can withstand higher temperatures than PLA) I tried one printed in PETG, but it would bend to one side</li> </ul> </p></p></p> Category: Sport &amp; Outdoors