Parametric heater sidewall clip/Brötje Klemmbuchse

prusaprinters

The Brötje radiators use 4 plastic clips (2 on each side) to hold the metal side panels. They have to be attached to two pipes inside the radiator. They are rather tight and tend to break when removing one site panel for cleaning purposes.This design was first started to create a replacement. But at the end, it ended up as a small research project to improve it for my personal use case. It might not actually be optimized for other (similar) radiators. But it is possible to open the "heater_sidewall_mount v2 simplified parametric.FCStd" or "heater_sidewall_mount v3 optimized.FCStd" with realthunder's FreeCAD Link Branch and adjust the various parameters in the spreadsheet.The versions are:heater_sidewall_mount v1 originaldesign to mimic the original partsee bottom list for other designs on thingiverse which might mimic specific versions of this clip betterheater_sidewall_mount v2 simplified parametricsome unneeded overhangs and details were removed to make it better printablethe simplified design was parametrized via a spreadsheetheater_sidewall_mount v3 optimizedparameters were adjusted to create a better usable design for my purposesmaller length of the part which connects to the pipereduced wall size of the part which connects to the pipereduced inner diameter of the side-wall part to increase the wall thicknessincreased lug width to increase the overall wall thicknessto compensate for the much stiffer clip, the opening angle was slightly increased to make it easier to put it over the pipenumber of spacers were increased to improve the z-stabilityThe support has to be removed from the small slit on the top. Thanks to the support interface, it could be removed with a small leaver (like a small flat head screw driver) and needle-nosed pliers.The current tests prints are only PLA but should be reprinted in the future in a more haet resistant material.If only a ready to print model is needed then also have a look at the designs fromglatzy91alin1977Albert62Print SettingsSupport settings:Pattern: ZigZagDensity: 15%Support Interface: YesAdditional changes:Slicing tolerance: exclusiveIroning: true