LATHE "THE SIMPLE" r2.0 POWERED BY WASHING MACHINE BLDC MOTOR

cults3d

Well, this is the r2.0 version of my lathe, only handly driven, but easely portable to CNC. Into provided CNC.ZIP you'll find all items needed to build the CNC version. Items in STEP and F3D format are provided for both versions. As usual, buyers can request the link to the whole project at Tinkercad.com. First alignment video here: https://youtu.be/TfO16oEG1MU Second video with CNC wotking here: https://youtu.be/YZiykR4ji8k Third video here: https://youtu.be/6G-Da1S9fOc Fourth video (cold CNC test) here: https://youtu.be/pcWi-et-hy8 UPDATES 2022-07-05 - For brave hearts only; added a experimental rotating turret, 360° in 22.5° self-locking steps. All necessary items and instructions in ROTATE.ZIP. 2022-07-10 - uploaded 3BUTTONS.ZIP with Arduino UNO sketch to drive the Z stepper manually via 3 buttons. 2022-07-13 - uploaded Z_AXIS_CARRIAGE_BASE.STL, aimed to reinforce carriage robustness 2022-07-16 - uploaded brand new software LCD_GRBL_MEGA_2AXES.ZIP implementing LCD 2004 and SD card (see fourth video above). Thanks to Carlos Guerrero https://github.com/cguerrero1205/LCD_GRBL and Bart Venneker https://github.com/bvenneker/Arduino-GCode-Sender for their wonderful work! As previous version, it uses an easy to get motor from faulty washing machines; at today they're almost all BLDC (Brush Less Direct Current) equipped, very similar as concept to the stepper motor we're used to. The motor I use is an Ignis WM (Nideco motor) and needs 195VDC at 310Hz for max power and speed, but it can be driven with a lower frequency (less speed and without almost any loss of its 600W power); I opted for an VFD 220V 0-400Hz 1,5KW and 50Hz seems to be good choice for speed. Furthermore it features wonderful bearings, engineered for big radial charge, perfectly balanced rotor and, last but not least, a very quit operation. If you however don't like BLCD motors, you can always a motor of your choice and provide it with adequate suppports and driving method. This lathe features: - main carriage knob to intuitive movements, 2.5:1 - reinforced and dust protected tool carriage with C-Beam profile, two sides driven - continuously variable speed via a cheap VFD BLDC controller - fixed tools turret with two insertion sides, 0° and 90° - optional rotating turret 360° in 60° clicking steps - tailstock carriage sliding with manual action, lockable in place - can accomodate also every printed 80mm chuck - max workable length 500 mm (with tailstock, of course...) - very few printed items NEW - LCD2004 and SD card to work from files or manually move the axes (n. 1 Arduino Mega, encoder KY-040 and Arduino MicroSD card adapter) Exploded views STL included. I hope you like this too... INSTRUCTIONS Motor: - cut away 10mm from back foots (see red parts in picture above) - put it exactly at center of profile and place the 4 foots - move the tailstock close to the chuck and align the chuck center to it - tight firmly the motor and the four feet screws - apply the 19-14mm adapter to the motor rotor - screw in the chuck adapter plate - with spinning motor ensure that there's absolutely no oscillation - tight the two 19/14 adapter grubs enough to let a mark on the rotor - remove the adapter from motor and with a 4.5mm drill bit make a little conical hole 1mm deep to each mark on the rotor, to fit the grub points - apply again the adapter and tight well the grubs - check again with spinning motor that there's absolutely no oscillation and eventually correct CNC Manual operation: It's only necessary cut off the power to the controlling board... Firmware: brand new based on GRBL 1,1h, implements LCD 2004 and SD card wich lets you work directly from SD or manually move axes. BOM Electronics: manual version - n. 1 washing machine BLDC motor - n. 1 button self-locking switch - n. 1 safety switch - n. 1 cheap VDF 1.5KW 3 phase controller - n. 1 SSR relay in 220/380 out 220/380 - n. 1 10KOhm linear 10 turns potentiometer CNC version - n. 1 washing machine BLDC motor - n. 1 button self-locking switch - n. 1 safety switch - n. 1 cheap VDF 1.5KW 3 phase controller - n. 1 SSR relay in 220/380 out 220/380 - n. 1 I2C LCD 2004 display - n. 1 Arduino Mega 2560 board - n. 1 Arduino Uno board - n. 1 Arduino Uno CNC shield - n. 1 Arduino MicroSD module - n. 1 KY-040 encoder - n. 1 ON-OFF switch - n. 2 Nema23 steppers - n. 1 12VDC20A power supply - n. 1 40mm fan 12VDC - n. 2 hall proximity sensors - n. 2 8x3mm Neodymium magnets - n. 1 10KOhm linear 10 turns potentiometer Mechanics: - n. 1 K11-80 chuck - n. 1 14mm base for K11-80 - n. 1 19mm to 14mm adapter for above chuck - n. 1 Makita 9523 gears set, very cheap - n. 4 Bevel gears 1.5 Modulus 20 teeth 8mm bore Body: - n. 1 C-Beam profile 4080 308mm - n. 2 profiles 2080 230mm - n. 1 profiles 2060 230mm - n. 2 profiles 2060 70mm - n. 2 profiles 2040 1000mm - n. 2 profiles 2040 175mm - n. 2 profiles 2020 807mm Bearings: - n. 13 608ZZ bearings - n. 2 F6900ZZ bearings - n. 11 M5 spacer 6mm T8: - n. 1 T8-2 leadscrew 770mm - n. 1 T8-2 leadscrew 580mm - n. 1 T8-2 leadscrew 350mm - n. 4 T8-2 round nuts - n. 1 T8-2 T type Opensource anti-backlash nut Rods and bars: - n. 1 M10x135mm threaded rod - n. 2 rod 8x65mm - n. 2 rod 8x45mm Wheels: - n. 1 threaded hex coupler M10x32mm - n. 28 24mm Delrin wheels - n. 14 5mm eccentric nuts MISCELLANEOUS - n. 1 safety switch - n. 1 T2 loop belt 810mm - n. 2 T2 belt timing 60 teeth 44mm OD 8mm bore - n. 2 no teeth pulleys 5mm bore - n. 1 5 to 8mm flexible coupler - n. 1 10mm socket drill chuck - n. 31 90 degrees profile locks - n. 8 8mm collar locks - n. 1 M10 nut - M5 flat head screws screws - M5 nyloc nuts - t-nuts