Horseman 45FA Lens-board - Copal #1 with 12mm Extension

prusaprinters

<p>An 80mm² lens-board for the Horseman 45FA field camera with a Copal #1 (41.6mm) opening.</p> <p>This model has a 12mm extension on the front to allow better access to the controls of a given lens should it be required.</p> <p>This is modelled as accurately as possible from an original Copal #0 lens-board.</p> <h3>Print instructions</h3><p>I've been playing around with support settings for this one, using a method I saw on one of the Prusa Facebook groups.</p> <p>Essentially it entails a zero-distance between the interface layer and the print, a manual pause (M601) to be inserted at the first solid layer to be supported, and a release agent to be added before the print resumes.</p> <p>So far I have tried;</p> <ul> <li>PVA glue</li> <li>Sharpie</li> <li>Modge Podge glue</li> <li>Acrylic paint</li> </ul><p>All of these release agents worked well, but Sharpie and PVA glue are by far the best.</p> <p>Have a dig around in the supplied 3MF files for an idea of what I've been tinkering with.</p> <p>General settings;</p> <ul> <li>100 % infill - required to make the piece light tight</li> <li>5 perimeters</li> </ul><p>There's also a version with a chamfer to strengthen the join between the board and the extension, however after inspecting the print I really don't think this is necessary.</p> <p>The final shows my attempts at using manual support structures on top of the interface layers, this gives a slightly different finish that may not necessarily be better but certainly makes the supports fall right off.</p>