ScrewDelta 3dprinter

myminifactory

https://www.youtube.com/watch?v=phc35bW-O-I The columnClamp item is a screw wave reducer that utilizes unused height to shorten free screw length. Two bronze bushings from the list below are inserted at the top and bottom of this waveReducer. No automatic bed leveling or endstops are needed. Black columns consist of igus AWMR12 alu tubes with ceramic coating, 500 mm long, inserted in them with M8 screws and fixed with super glue. For these rods, use lm12uu or igus bushings. The driving screws are igus PTGSG-08X15-01-R-500-ES. If you cannot print the nut well or have an extra $75, order the DST_JFLM_202020DS8X15 nut along with the screws, as it has no play and rolls down the thread under its own weight. Bushings: http://www.aliexpress.com/item/SF-1-0810F-Oilless-bush-with-flange-DU-Self-lubricating-bushing-Sintered-bush-Size-8-10/1948062281.html Magnets: http://www.aliexpress.com/item/Top-Selling-High-Quality-18-x-N52-Strong-Powerful-Round-Magnets-12-x-5mm-for-Kossel/32443597865.html Balls: http://www.aliexpress.com/item/High-Quality-Brand-New-16pcs-Set-10mm-M4-Threaded-Steel-Ball-Rod-Ends-For-Kossel/32369217388.html The best extruder I know is the saintFlint, which performs best at the bottom of the top plate - just replace one original screw with a longer one.