Lego syringe

Lego syringe with Trans-Red "blood" elements.

The most difficult part of this design was actually getting the colors right. The rarest part is not, in fact, the chrome silver antenna, but the 8-long dark gray Technic axle. Generally, even-length Technic axles are black and odd-length axles are dark gray. The dark gray 8-long axle was included, so far as I can tell, in only one kit. And dark gray is the only color in which all the plunger parts are available. And this is the only plunger design I’ve come up with that satisfies me.

Here’s the parts list:

  • 2 Plate 2 x 2 Round (#4032), Black
  • 1 Plate 2 x 2 Round (#4032), Dark-Gray
  • 1 Technic Axle 3 with Stud (#6587), Dark-Gray
  • 1 Technic Axle 8 (#3707), Dark-Gray
  • 1 Antenna 6H Chrome (#104), Silver
  • 1 Bar 4L Light Sabre Blade (#30374), Trans-Red
  • 2 Brick 2 x 2 Round (#3941), Trans-Red
  • 1 Dish 2 x 2 Inverted (#4740), Trans-Red
  • 1 Brick 1 x 1 Round with Hollow Stud (#3062B), Trans-White
  • 6 Brick 2 x 2 Round (#3941), Trans-White
  • 2 Plate 2 x 2 Round (#4032), Trans-White
  • 1 Plate 2 x 4 (#3020), Trans-White

Anyway, if you don’t have the parts and want to build one, kits with Trans-Red elements for the “blood” version are available in my Etsy store. The model is fairly self-explanatory, but I have produced a simple set of instructions (PDF), which are visible below.

Lego Syringe Instructions.

16 thoughts on “Lego syringe

  1. Very nice. :) If you want to get to less rare parts and are willing to go with light-gray for the plunger, you can use a 7-long and a 5-long axle. The end of the axles will reach just barely through the “rubber gasket” if you keep the same remaining length of the plunger.

  2. This is actually already in the FLL Lego Robotics competition, as a field piece. Well, a very similar one anyways.

    I like this design better than the other one, though.

  3. Thank you, but I’m not sure I understand what you mean. There is no hole in the 4×2 clear plate; the axle does not actually pass through it. There’s a “Technic Axle 3 with Stud (#6587), Dark-Gray” that hangs off the back. I think I have seen some Technic plates that have holes that could pass an axle, but not any in Trans-Clear.

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