Assembly

Assembly

Tools Needed

Place down one 12" single rail and one 12" double rail both on their 1" x 12" side.
In between the two rail, place two 6" single rail on either end so the four rails form a 9" x 12" rectangle.
Prepare Screws for Tank Stands
- Loosely screw together 4 sets of cap screws and T-nuts.
- Slide 2 assembled screws onto the 12" single rails and 2 onto the 12" double rails.
- Make sure the screws face the inside of the frame-rectangle.
Attach the frames together using 8 cap screws, 8 T-nuts, and 4 single brackets.
Attach a bumper below each corner (4 total).

Orient the rectangular framing such that the 12" double rail is on the right.
Behind the farther 6" single rail, center one 24" double rail oriented vertically with a 2" side flush with the frame.
Attach the 24" double rail to the base frame using 4 cap screws, 4 T-nuts, and a double bracket.

Attach a cap screw and T-nut to each screw hole of the 3-D printed syringe pump mechanisms.
When attaching the screws, leave room for the pieces to slide onto the framing.
The T-nut should be on the flat side of the print.
Slide the syringe hub holder onto the 24" double rail oriented like an “L”.
Tighten the screws when the holder is 5.5" above the rectangular frame.
Slide the flange holder onto the 24" double rail oriented like an upside-down “L”.
Tighten the screws when the flange holder and the syringe hub holder can fit your syringe.
Ours is approximately 5.25" apart at their farthest edges.

Place the steel hex nut into the syringe displacer's hexagonal slot and slide it into place.
The threaded part of the nut should align with the circular cutout on the displacer.
Place the linear bearing into the syringe displacer's circular hole.
You want the bearing to be flush with the syringe cutout.
Spin the threaded rod into the steel hex nut until the syringe displacer is around the middle of the threaded rod.
Slide one motion shaft into the linear bearing.
Place the motion shaft and the threaded rod into their corresponding hole in the flange holder.
The motion shaft is closer to the frame, the threaded rod is farther.

Attach the 8mm end of the rigid coupler to the top of the threaded rod using two M4 set screws.
Attach the syringe motor to the syringe motor mount using 4 M3 screws. The wire should face left or right.
Slide the syringe motor mount onto the framing so the motor shaft fits into the rigid coupler.
Also, the motion shaft fits into syringe motor mount's cylindrical extrusion.
Secure the motor to the coupler with 2 M4 set screws.
Tighten the mount’s cap screws.

Place a nylon hex nut into the 3D printed axel's hexagonal slot.
Slide the axel into a post and secure with a nylon screw.
Snap two plastic ball bearings onto the axle with the bearings facing out. Eventually, you want the metal bearings to be facing away from the baths.
Repeat steps 1-3 two more times (3 assembled rod posts total).

Note: orient all the rod posts so that the bearings’ metal parts face out.

Orient the frame so that the 24" double rail is furthest from you.
On the 12" single rail, place one assembled post with its bottom edge 2.25" from the bottom of the frame.
Repeat step 2 with 12" double rail's left rail.
Attach both posts to the frame with 4 cap screws and 4 T-nuts.

On the 12" single rail, place another post with its top edge 3.25" from the top of the frame.
Attach the roller motor to the 3D printed roller motor mount with four M3 screws. The wire should face down.
On the 12" double rail’s right half, place the roller motor mount with its bottom edge 2.25" from the bottom of the frame. The wire faces away from the frame.
Attach the roller motor mount and post to the frame with 4 cap screws and 4 T-nuts.

Note: tank stands are attached on the inside of the frame in an upside down “L” shape

Beneath a passive rod post, attach a wide tank stand using the two pre-attached screws farther from you.
Repeat step 1 for the other passive rod post.
Beneath the motorized rod post, attach a narrow tank stand using the remaining pre-attached screws.
Repeat step 3 for the roller motor mount.
Place the coagulation bath on the wide tank stand.
Place the wash bath on the narrow tank stand.

Slide one roller onto one motion shaft.
Slide a shaft sleeve on either side of the roller.
Place the roller onto the passive rod posts, aligning the shaft sleeves with the plastic ball bearings.

Slide the second roller onto the other motion shaft.
Slide a shaft sleeve on only one end of the motion shaft.
On the other end, attach the 8mm side of the flexible coupler using two M4 set screws.
Attach the 5mm end of the flexible coupler to the roller motor using two M4 set screws.
Align the shaft sleeve with the plastic ball bearings on the other side.

Position the rollers in the middle of the tanks.
Slide an M2 nut into each slot of each roller.
Secure the rollers to the motion shafts with M2 screws (4 nuts and 4 screws total).

Place the prepared PCB inside the 3D printed controller box, ensure the connectors match the outlets on the box.
Secure the PCB with 4 M3 screws.

Remove the threaded ring from the pushbutton, insert the pushbutton into the dedicated slot on the controller top panel.
Secure the pushbutton with the threaded ring.
Remove the nut from the potentiometer, insert the potentiometer into the dedicated slot on the controller top panel.
Secure the potentiometer with the nut using a plier.
Place the display into the dedicated slot on the controller top panel.
Secure the display with 4 M2 screws with nuts.

Last updated on April 22, 2025