printrbot GO – first print

So the wiring was a little kludged together but I didn't have the patience to wait for the wiring solution Brook told me he'd put together for me, so I hacked something together to get the thing up and running using some bits from Radio Shack. I was pretty sure that the power supply which came with the bot would be underpowered for the heated bed, at least for ABS type temperatures, so after getting a tip from Brook that an X-box 360 PSU might work (the original version puts out 203 watts) Read more [...]

printrbot GO – the box (part two)

So I've gotten totally out of sync between the building and the writing.  I guess that's what happens when you obsess over one and neglect the other, so let me try to catch up a little bit. There were a few critical pieces missing from the kit as received.  Most critically, the Z couplers were nowhere to be found.  These are the pieces that connect the shafts on the motors for the Z axis to the threaded rods that move the entire X assembly (and extruder) up and down.  Essentially, you Read more [...]

printrbot GO – the box (part one)

So with the X axis assembly, um, assembled... it's time to start putting the box together.  For the top and the bottom, it seems that Brook recommends wood glue.  I can't say for sure I won't do that later, but for now I've decided instead to beef up the attachments using countersunk screws and nuts instead. You see, there are a few places where you absolutely need countersunk screws and don't have them.  The panel in the bottom of the drawer that will expose the Y axis belt securing bits and Read more [...]

printerbot GO – let there be X

I didn't take a lot of pictures while putting together the X axis assembly as it went mostly without incident and the documentation was pretty good and complete. A few comments about the unexpected however. This one hole for a wood screw seems to just be in the wrong place.  It's on the left side of the X assembly and if I had planted the screw here, it would've just splintered the tab below it since the hole is basically directly over the edge of the material. It's worth noting a couple Read more [...]

printrbot GO – Y assembly

Sometimes we do things that are foolish.  While it may indeed be a good idea to bevel some of the exterior edges on the GO, it was decidedly not a good idea to spend a lot of time and effort on this before actually assembling the thing.  Birch ply wood is a great material for an assembly such as this because it is inexpensive and can be easily brought to shape on a laser cutter.  It does not however hold up particularly well to detailing and the size of the wood screws and the perilously-close-to-the-edge Read more [...]