3D printed electric screwdriver
Gear ratio 25:1
Just enough torque for smartphones and such with more speed than an average commercial screwdriver of similar type.
It requires:
.Powerful type 130 dc motor (peak current of mine at 4 volts is about 3 Amps)
(Also as it turns out stock brushes of this motors last for about a week)
I upgraded mine with graphite brushes i took from another motor. Yet to find out how long that would last.
. 18650 lithium-ion cell
. Lithium cell protection board
. Couple of buttons
. H bridge motor controller (i used TA6586)
. Micro USB
. Some litium battery charging chip
| Battery_holder.stl | 1.8MB | |
| Bit_holder.stl | 925.8KB | |
| Body102.stl | 605.9KB | |
| Bottom_cap.stl | 6.1MB | |
| Button_leaver.stl | 990.4KB | |
| Cage.stl | 333.4KB | |
| Carrier.stl | 1.2MB | |
| Cura_settings.rar | 1.2KB | |
| Electric_screwdriver.rar | 18.3MB | |
| First_stage_output_gear.stl | 2.4MB | |
| Fit_test.stl | 4.7MB | |
| Gearbox_bottom.stl | 913.4KB | |
| Hausing.stl | 959.9KB | |
| Inputgear.stl | 2.4MB | |
| Internal_gear_ring.stl | 21.3MB | |
| Main_body.stl | 6.6MB | |
| Micro_USB_holder.stl | 432.4KB | |
| Output_shaft.stl | 1.8MB | |
| Planet.stl | 2.8MB | |
| Roller.stl | 2.2MB | |
| Screwdriver_v75.f3d | 14.6MB | |
| Smaller_hausing.stl | 974.7KB | |
| Top_cap.stl | 5.8MB |
