Tools: Model 2 Syringe tools

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1 Dual Syringe tool
- 1.1 Assembly Instructions
  - 1.1.1 Prep the parts
  - 1.1.2 Assemble
2 Single Syringe tool
- 2.1 Photos
3 Parts
- 3.1 Dual Syringe Tool

Dual Syringe tool

The standard syringe tool for the Model 2

The standard tool uses two snap motors to extrude material. The motors are not inline with the syringe, rather they transmit power via two gears to a plunger within the syringe. The bays of the tool are labeled bay 0 and bay 1, and the motors are plugged into ports 4 and 5 of the snap motor respectively.

Assembly Instructions

Pictorial representations are in development. NOTE: assembly steps are almost identical for the single syringe displacement tool, except that it has one of every part in the drive system rather than two. See the picture for further comparison.

Prep the parts

Place the [6-32 inserts] into the Tool mount outer plate
Place the [6-32 inserts] into the Tool back plate
Cut a length of M3 threaded shaft ~10 cm long, file both ends flush.

Assemble

Screw two [SM062] motors to the drive interface plate, ensuring that the flat side of the motor shaft faces through the plates long cutout.
Slide the syringe holder plate over the motors
Snap the plates into one side plate
Snap the lower drive support plate into that side
Snap the other side together
Place the syringe support plate into the syringe holder plate
Attach the bottom plate to the support and side plates
2x Put a [Round Knurled Thumb Nut, M3 screw] inside [6mm bore, 28mm pitch dia. 16mm hub dia. Gear] and tighten the set screw
Put a [3 mm Bore, 6mm Outside Dia. Ball Bearing] in the gears + nuts
Screw a cut length of threaded rod through the gears + nuts.
Put the drive shaft assemblies into the drive interface plate
Attach the [4mm bore, 28mm pitch dia. 16mm hub dia. gears] to the snap motors.
Slide the upper drive support plate over the shafts and screw into place.
Put 2 nuts on the top of each length of rod and tighten so they are locked
Put 1 nut on the bottom of each rod with enough space to screw one exactly one more nut. (Optional: Glue the nut in place using cyanoacrylate.)
Screw the tool mount inner plate to the Tool mount outer plate
Screw the Tool back plate to the tool assembly
Screw the tool mount plates to the Tool mount back plate

Single Syringe tool

The single single tool for the Model 2

The Single syringe tool allows a model 2 to be made for $200 less than a standard kit. The disadvantage of this machine is the need to constantly switch materials during a print with multiple materials or support materials.

Note that the Single Syringe tool has exactly the same set of parts as the double syringe tool - just modified for one rather than two syringes.