Tag Archives: 3D printing

more heated chamber

Posted on January 13, 2016 by paulwallich

I think this is a pretty good indicator. Both prints using the same spool of ABS (which my friend Tyler at filabot dropped off for playing with because of the nonuniform color). Right without a chamber, left with chamber. The … Continue reading →

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printrbot metal plus heated chamber

Posted on January 12, 2016 by paulwallich

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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Downcycling

Posted on January 8, 2016 by paulwallich

Those random pieces of plywood that had a bunch of stuff lasercut out of the middle? Save them. You never know when they might come in handy. For example: the other day I needed to make a simple camera mount … Continue reading →

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More Big-Nozzle Fun

Posted on December 4, 2015 by paulwallich

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

Posted on November 30, 2015 by paulwallich

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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I need a better CAD program

Posted on November 13, 2015 by paulwallich

Or to get really good at creating polygon coordinates in my head. My new fan duct is an improvement over the old one, which was an improvement over a bare fan with a dab of packing tape. (I made something … Continue reading →

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Fat Marvin

Posted on November 5, 2015 by paulwallich

While I was fiddling with the acceleration settings on my Printrbot JrV2 to get less shaking and perhaps more accuracy, I discovered that reducing the acceleration below 1000 mm/sec^2 pretty reliably caused the machine to stop working  partway through a … Continue reading →

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True North

Posted on November 1, 2015 by paulwallich

Well, except for declination error and any nearby metal objects, and within the resolution of the stepper motor… Ingredients: Adafruit 9-degree-of-freedom accelerometer/gyro/magnetometer, wired through a slip ring to an Arduino clone with lots of spare 5-volt power, driving one of … Continue reading →

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I’m a little puzzled by these loops

Posted on October 6, 2015 by paulwallich

(PET+, 250 degrees, .25mm layer height, 60 mm/sec, no additional acceleration control) I think I know what most of the other issues are — the blebs are from not retracting enough on layer change, the ringing is from running too … Continue reading →

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Ubis 13: Just a better hot-end?

Posted on October 6, 2015 by paulwallich

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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