Flexible plate coupling

thingiverse

Work in progress, STL-files will gradually be updated and uploaded. Thingiverse is experiencing significant delays and appears to be unable to process uploads at this time. Attempts will be made later. Thingiverse seems to struggle with absorbing STL files too effectively... ---------------------------------------------------------------------------------------------------------------------- Flexible plate couplings designed for 3D printing and assembly using M4 inbus bolts (DIN 912). Printable in multiple modular parts with OD 25 or 35mm, excluding the exception of OD25 ID10mm due to space constraints. Flexible plate couplings can compensate for various misalignments in different configurations: * One plate: Angular misalignment * Two plates: Angular misalignment and Parallel misalignment Additional benefits include highly customizable stiffness and near-zero backlash. ------------------------------------------------------------------------------------ Available sizes: (TBD) -> To be done / Not yet uploaded X -> With or without flattened shaft, file suffixed with "D" Blocks and clamps: OD 25mm: -ID 5mm X -ID 6.35mm X -ID 8mm X -(TBD) ID 10mm -> OD will change to nearly 29 as the bolt heads will stick out unless filed down, with its own set of files due larger distance between bolts. OD 35: -(TBD) ID 5mm *With or without flattened shaft. -(TBD) ID 6.25mm *With or without flattened shaft. -(TBD) ID 8mm -(TBD) ID 10mm -(TBD) ID 12mm Flex plate: For the flexible plate, it's recommended to print as a multiple of 2 layers for uniformity, assuming a crossing pattern with 0 and 90 degrees offset. Let this be a multiple of 3 for an offset of 0, 60, and 120 degrees. Use thickness modifier to change to desired height in your slicer. Suggested thickness: Layering with 0 and 90 degrees: NEMA 14: 18n*cm -> 0.4 mm NEMA 17: 65n*cm -> 0.8 mm NEMA 23: 300n*cm -> ??? mm *Don't think this is viable yet Layering with 0, 60, and 120 degrees: NEMA 14: 18n*cm -> 0.3 mm NEMA 17: 65n*cm -> 0.9 mm NEMA 23: 300n*cm -> ??? mm *Don't think this is viable yet ------------------------------------------------------------------------------------------- FEM: With 60N*cm and a 0.8mm plate, the typical yield strength of PLA is approximately ~3.5 * 10^7 Pa. After printing, a small cleanup is required by removing support material. ------------------------------------------------------------------------------------------------------ Added the SLDPRT(2018) and STEP(AP214) file. Two files are in their original position, one has added custom support and has been split and placed flat on the bed.