Author: Maker Block

Can we make a printed Nerf dart shooter?

I’m curious.

I figure a typical Nerf dart shooter works as so:

  1. A dart with a plastic cap and a hollow center
  2. Putting the dart in a thin cylinder, with the cap facing out
  3. Pulling back a larger cylinder that fits around the thin cylinder, where the larger cylinder is capped at one end
  4. Suddenly releasing the larger cylinder, so that it will be propelled forward
  5. The air between the two cylinders is compressed, and forced into the cavity inside the dart
  6. The compressed air forces the dart out of the thin cylinder

I think this is doable with 3D printed parts and a rubber band.

Google, what the hell?!

Apparently I can’t access Google Groups.  Which sucks.  I have several different Gmail accounts and I can’t use any of them with Google Groups.  As a result, I can only read what’s going on in the Google Groups on my RSS feed – and not respond to anything.

Google, this may not be evil…  But it is just plain mean.  Cut this out, please, and restore access to Google Groups to Gmail users.

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A friend of mine was talking about homeopathy…

… the other day and how he liked natural solutions and remedies.  I asked him if he knew what homeopathy is.  He thought about it and said, “You know, natural stuff.”  I told him that homeopathy is the belief that exposing yourself to very small doses, parts per million, of a harmful or toxic substance will in some way provide you with a resistance against such compounds.

Astonishingly to me, this did not appear to phase him at all.

I just don’t get it.  How in the world is a small shark bite supposed to protect you from a big shark bite?

@giseburt, if you hated the circus…

…then don’t go to Disney On Ice.

It’s hard to say which would be worse.  I’m not sure if I hate clowns because I fear them so, or because I fear them because of my deep and abiding hatred for them. 1  On the other hand, Disney On Ice is miserable, miserable, miserable.

  1. That said, I like balloon animals.  And red noses.  Face paint?  Not so much. [↩]

Don’t think I’ve given up…

Just because I didn’t label the Clockwork Spider on Thingiverse as a “work in progress,” don’t think I’ve given up on it.  It exists now as an actual physically printed object and I’m very happy about that.  However, the legs are just a stand-in1 for nice spidery looking legs I’ve already designed.  There’s no point in printing the real legs up until I’ve gotten a mechanism that will make them work.

  1. As it were [↩]

Clockwork spiders

I’m so freaking happy with the design, print, and assembly.

You can assemble the entire thing by hand in just a minute or two with no tools or hardware.  Turn the center wheel to make it walk.  Right now the gears are a little rough – but I have an idea on how to fix that in the next revision.  But, if the gears turned even slightly better, I think this design is almost ready for the big time.

I cannot wait to have a printed wind up rubber band powered clockwork spider skittering across my desk at work.

*skritch* *skritch* *skritch*  “Oh, don’t mind leggy.  She can smell fear.”

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