motor

this electric motor does not need supports and can be printed at fast speeds

Materials:

1m6 bolts

6-m5 bolts

Approx % pound 18mag Copper wire [0.9mm]

3D PLA printed CAD design stator (File available online]

3D PLA printed CAD design rotor (File available online]

15 cm Insulated copper wire

70-12x2mm neodymium magnets (Available on Amazon]

1-brushless electronic speed controller (Available on amazon]

12x5mm Barring

Reclaimed RC car battery

Reclaimed laptop charger

One male and female electrical 5.5x2.1 mm pigtail jack connectorSoldier

Electrical tape

Wood base(Optional〕

Cuac

Motor Assembly Instructions

Step 1:Wrap wire around each of the 6 m5 bolts 45 times leaving 4-6inches of spare wire on both ends. Using a drill can be helpful.

Step 2: Screw bolts into the stator

Step 3: Solder wires together in a Y configuration (as pictured)

Step 4: Install the barring into the rotor and install 6 magnets per slot (3 inslot, 2 under, and 1 on top) in the rotor in an alternating polarity pattern.

Note:the 2 magnets on the underside of the rotor help minimize thedistance between the coils and magnets.

Step 5: Install extension wires (jump wires) if needed by soldering theconnections to connect the speed controller.

Step 6: Attach rotor to stator and screw in place with m6 bolt

Step 7: Take 3 wires coming out of the stator (without solder on them) andinsert them in the electric speed controller. It does not matter the order ofthese wires in the slots ABC in the speed controller. Ensure the positiveand negative slots are available for connection to the power source.

Step 8:Insert the female side of the pigtail jack wires into the speedcontrollers ensuring positive is in positive slot and negative is in negativeslot tighten screws on speed controller to secure all the wires. Ensure allsolder joints or other connections are wrapped with electrical tape.

Step 9: Plug in the power source,turn on and test it starting at a slowspeed to start. It sometimes will need a little push to get started. Onceworking, superglue magnets in place for safety. That is very important magnet flew out in my case cuz I forgot to glue all the magnets! 

Step 10: If working well, optional is to disconnect motor and speedcontroller so they can be mounted inside a case.

If not working well, test with a different power source. Usinging a multimeterbetween the abc joints and the motor check for connectivity. Check all wirejoints including any solder joints.