V6-Hotend-Adapter for Ender-3 with direct drive extrusion

thingiverse

This model is an adapter plate for mounting a V6 hotend to some Ender-3 with direct extruder mod. See also my other thing: https://www.thingiverse.com/thing:4160963. Besides the printed parts, you need M4 and M3 thread cutters for aluminum and the appropriate drills. And of course, the correct screws must be used. This model is not perfect, but it serves me well. For the full metal hotend, you should be aware that printing with too low speed can result in heat creep. Below 1 mm^3/s volumetric flow, there is a high risk that this problem will occur. Edit 2020-06-07: I added some guidance for filament to Fixature and a guide plate to be inserted below the extruder wheel clamp. This was necessary because I had problems printing flexible filament (FlexFill 98A from filamentum/Prusa) due to coiling in the large spaces. The full-metal titanium heatbreak for V6 Hotend can be purchased from rs-praezision: https://www.rs-praezision.de/epages/83750466.sf/de_DE/?ObjectPath=/Shops/83750466/Products/%220001%20E3D%20V6%22. Be cautious when buying the V6 Cooler. Many of them, especially clones, have M6 thread instead of M7 for taking the heatbreak. The original V6 cooler has M7 and the heat block has M6. This is also what the above titanium heat-break has. I have 8 coolers in my box that didn't fit because of the wrong M6 thread. Edit 2020-09-10: I added the TopFiller to be placed in between the extruder and the hotend holder, to fill every little space where (very) flexible filament can spool itself in. This happened to me with FlexFill 98A. For rigid filament (PLA, PETG,...), this little piece is not necessary. Another remark: The vent opening of the piece is not ideal. I had already some problems printing overhangs that are not facing the opening directly. For example, overhangs on the left side of the model. I think I will soon replace the right cover part of the holder with a more sophisticated one to cool the printed part more effectively. For further information about this winding up problem, see: - https://www.hestay.nl/en/3d-print-support/3d-print-tips-explanation/overhang/ - https://rigid.ink/blogs/news/how-to-print-overhangs-bridges-and-exceeding-the-45-rule