Dual Useless Machine Battle (D.U.M.B.)
thingiverse
This is basically a combination of 2 useless machines I saw on youtube:http://www.youtube.com/watch?v=AcJuL2R1mCo andhttp://www.youtube.com/watch?v=CWqoI7UKpQg 16 switches and 2 players. A 4 digit 7-segment display shows the current value of the switches in hexadecimal, and the machine can cooperate to set the swtiches to display the current time:https://www.youtube.com/watch?v=cBS2tky4yZs Or they can battle, each trying to hold the majority switch count for the longest time! Instructions Materials needed: (2) NEMA 17 stepper motors (4) 40mm x 8mm linear rails (4) LM8UU linear bearings (2) GT2 pulleys (6Z51M036DF0605) (2) 8x22x7mm bearings (608 style) (1) apx 2m of GT2 timing belt (2) M8x35mm hex bolts (8) 15mm outside snap rings (2) M8 hex nuts (4) M8 washers (2) micro switches (2) Servo motors (MG995 size) (1) 14" x 0.75" angle aluminum (16) SPDT toggle switches (12) M3 x 10mm socket cap screws (2) M3 hex nuts (4) M4 x 20mm socket cap screws (2) M4 hex nuts Printed materials: (1) Left stand (stand_4.1.stl) (1) Right stand (stand_4.1r.stl) (6) Motor mounts (2) Servo mounts (2) Switch clips
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