![]() ![]() It’s a good option for me convert to 1.75mm filament because it’s almost impossible to find 2.85mm here and when I found it’s triple the price and has a lot of moisture due to low demand □ I also get an allmetal/ bimetal heatbreak to avoid the one with internal PTFE tube (it cames with Capricorn in a bore 4.1 heatbreak I guess). Smaller motor (weaker torch), but relation 7:1 and total extruder weight of 119 grams (photo bellow). Nowadays there is a newer and lighter extruder in the market, the H2 from Biqu, just got one. Prints like a charm now (even flexibles). In retrospect I would recommend to start with a 3D-printed one. ![]() Also it's quite heavy and the included linear bearings are trash. There is also a aluminium head assembly on AliExpress, but be careful, you may have to modify (drill/mill) to get it working. I would also recommend to print everything from ABS or similar temperature stable. V6 groove mount compatible hotend (24V Heater Cartridge, PT100 Thermistor) "Tinker-Firmware" by TinkerGnome (/TinkerGnome/Ultimaker2Marlin/releases) "Ultimaker 2 BMG direct drive mount" by Tigerhawk60 (- Bondtech BMG extruder My original design was quite laborious, but I found a more elegant solution based on ultiarjan's suggestion:ġ) tube-holder: reuses the bowden-tube as cable-guideĢ) Y-endstop-extender: BMG stepper motor will crash into the UM2 housing without it Sorry for the late reply, but I revised my mod quite a bit. any presence of oil on them can cause an extrusion failure.Hello TheGrine, im interested in this configuration, could you please give me feedback of the configuration? When greasing the gears please care not to accidentally grease the wheels that pull the filament. Therefore, I spread out a piece of paper, carefully disassembled the gears, and gently greased all the components. I found it to be an excellent grease even for use with linear rails. Luckily a few weeks ago I ordered the Super Pinda from PRUSA in order to test the accuracy compared to the mini IR sensor. Applying a little grease to the gears system will make the system work better, keep the gears longer and protect it from moisture in the long run. I noticed also that the Biqu doesn't bother to grease the gears before sending them out to customers and I found it very disturbing. I may be wrong, but it seems that the gears are made of black coated steel material that can rust over time due to moisture in the air. inside the package you will find:Īfter changing the heater block orientation and nuzzle I have started taking care of something else that was bothering me. Very neat, it came with instruction and a separate bag that contained all the other accessories and tools. The extruder came in an airtight custom box, lying comfortably in a soft material that kept it from being damaged. After a rather short wait, the packaging arrived. If there were alternatives in serial production, I guess the price would have been much lower than this. But when I bought it there was no reliable direct-drive alternative that weighs less than the H2 extruder. It wasn't cheap, $ 100 for the extruder is definitely expensive. So a long time ago I ordered the extruder. NTC 3950 100k Thermistor and a 24v Heater. Max temperature: 260✬ but Upgradeable to 500✬ Max pushing force: 7.5kg (I was only able to verify 4.62kg) Weight 219g including hotend and fan! (mine was 225g) Direct drive extruder Ratio 7:1 / Torque 770mN.m ![]()
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