Category Archives: possibly useful

printrbot metal plus heated chamber

I think I could make this one a little better, but only at the cost of making it much harder to watch prints in progress. It’s got an outer frame of bent 3x12mm aluminum strip that clamps itself to the … Continue reading

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Sometimes it’s just nice to have the right tool

It’s holiday-cookie time, and the new beater we got for our 15-year-old stand mixer didn’t fit. It went partway on the shaft and then jammed. Grr. So this morning I went down to the basement and over to the old … Continue reading

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More Big-Nozzle Fun

This may actually be useful for other people. When I went to test different extrusion speeds for my 0.75mm nozzle on the Ubis13 I was concerned about how fast I could go and still have the heater keep up with … Continue reading

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3D printer nozzle wars

I finally got around to trying the  0.75mm nozzle on my Metal Plus. It arrived before the holiday, but I didn’t have the time to make a custom wrench for it (the flats appear to be just a hair too … Continue reading

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Bending acrylic is easier than I thought

This summer I took the little radiant space heater down from the ceiling of the woodshop — it really wasn’t doing much to keep me warm out there.  And we’ve had the scraps of a bunch of broken acrylic storage … Continue reading

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Ubis 13: Just a better hot-end?

So the all-metal hot-ends finally arrived, and I fixed the Metal Plus so I could actually use them, and I’m a convert. First, of course they make it possible for me to print with filaments I couldn’t use before, like … Continue reading

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Yet another tiny robotic car

Yes, it’s made mostly out of random parts I had lying around. That’s sort of the point: even if you had to buy all the parts, this thing would be cheap, and if (like me) you accumulate toy and electronic … Continue reading

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Anti-aging technology

Along with some of my mother’s tool collection, I inherited her complaint that as she got older her arms were getting too short to read things. Even if I wanted to just crank up the type size, there’s a limit … Continue reading

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Measure Once…

This is what happens when you’re trying to design a part to fit something that you don’t have a good model of. These are all the prototypes of the fan duct I made for my printrbot jrv2, starting on the … Continue reading

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I don’t know whether to be pleased or annoyed

I got a refurbished  HP laptop off a discount site a couple months ago, so that I could have a machine for doing hacker/maker stuff away from home (we have a macbook, but it’s flakey with arduinos and only runs … Continue reading

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