Bondtech (Clone) Extruder for Hephestos 2

thingiverse

COMMUNITY: If you've made your own part-cooling part, let me know and I'll add your design. I'm not 100% satisfied with the current part-cooling. - Bauteilduese_Variante_1 - Bauteilduese_Variante_single Update 07.11.19: I've made some design improvements to the part-cooling, but I'm still not 100% satisfied with the cooling on tight overhangs. I've uploaded two alternative part-cooling designs. Update 13.08.19: I've uploaded the STEP-file of the assembly. Unfortunately, the holder isn't exactly like the one from the STL-files 'Bondtech_Halter_verkuerzte_Version...'. The one from the STEP-file is missing a hole and a small lip where the radial fan 5015 sits. Nevertheless, it should function as well. Update 06.07.19: For better cooling, I've upgraded the part-cooling to version Luefter_V1.4. Update 08.06.19: For a tighter fit, you can use the original E3D-Fanmount. If you prefer to use a 40mm fan, I recommend this adapter: E3D 30mm to 40mm fan adapter by Core3D_Tech (https://www.thingiverse.com/thing:2748800). Hello Makers, I've designed an extruder mount to fit a Bondtech BMG - Clone (geared) direct extruder on the BQ Hephestos 2, but it should work with the original Bondtech as well. The first version (still on my printer) uses a classic NEMA17. This version, however, contains a NEMA17 pancake stepper with a rated current of 1.7A/phase. It's possible to use a larger NEMA17, but there will be a loss of build volume on the x-axis. Please note this and estimate your own x-limits. This version should be better, but I'm not sure if there is still a build volume loss. I'll update as soon as possible. The Bl-touch is integrated and uses some M2 or M3 screws. The sensor is quite near the nozzle, but I've noticed no problems so far printing PLA at 220-230°C. You may need some spacers to reach the right probe distance in the z-axis. Carefully check if the sensor reacts before the nozzle hits the bed. The 5015 fan has a tight fit and should snap into place. If it doesn't fit, you can remove the housing clamps of the fan with a knife and tighten the two fan-halves with two M3-screws on the mount. The Probe Offset in Marlin (Config.h): #define X_PROBE_OFFSET_FROM_EXTRUDER -26 // X offset: -left +right #define Y_PROBE_OFFSET_FROM_EXTRUDER -35 // Y offset: -front +behind #define Z_PROBE_OFFSET_FROM_EXTRUDER 0 // Z offset: -below +above if ENABLED(AUTO_BED_LEVELING_LINEAR) || ENABLED(AUTO_BED_LEVELING_BILINEAR) // Set the boundaries for probing (where the probe can reach). #define LEFT_PROBE_BED_POSITION 15 #define RIGHT_PROBE_BED_POSITION 170 #define FRONT_PROBE_BED_POSITION 20 #define BACK_PROBE_BED_POSITION 260 Material required: 2x M3x12mm for cable chain mount 2x M3-nuts for belt mount 4x M4x12 for Extruder mount 3x M3x36mm for Nema/Bondtech-mount 1x E3D V6 40mm Fan Mount (https://www.thingiverse.com/thing:506958) 1x Fysetc Bondtech clone 1x E3D V6 1x 5015 Fan 1x Bl-Touch Maybe I'll update this post with some drawings/explosion views.