The source code for the linear actuator and pump server are housed here: https://github.com/mtu-most/linear-actuator
Full instructions, documentation, data, and pictures coming soon....
Materials and Tools
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Procedure
- Secure motor into the motor end using 4 M3 washers and 4 M3 x 20mm socket head cap screws.
- Insert the 2 metal rods into motor end, then secure them in place with 2 M3 nuts and 2 M3 x 10mm socket head cap screws.
- Hollow out the two ends of the carriage, with a handheld drill bit or knife to make a hole in the plastic.
- Snap the linear bearings into place on the hollowed out ends of the carriage. Then insert an M5 nut into the nut-trap on the bottom of the carriage.
- Attach the base of the Plunger holder to the carriage with 2 M3 nuts and 2 M3 x 10mm socket head cap screws.
- Insert threaded rod into the coupler halfway, the other half should be on the motor, secure it.
- Slide the carriage onto the threaded rod and make sure the two metal rods fit into the linear bearings.
- After the carriage is midway down the threaded rod, thread two M5 nuts onto the threaded rod.
- Insert the two bearings into the circular slots in the idler end.
- Now slide the idler end onto the rods and secure it with two more M5 nuts on the end of the threaded rod. Push the two nuts already on the rod up to the idler end to secure it.
- Insert the syringe body into the body holders, then slide the plunger into the base of the plunger holder.
- Using four M3 x 40mm bolts, four M3 washers, and four M3 nuts secure the two holding pieces to the idler end of the pump. Put two nuts it the top of the holder closer to the carriage and two nuts in the bottom of the holder against the idler end.
- Insert the tab of the plunger holder on top of the plunger to secure it to the pump and prevent slipping when in use.