We have a functioning printer! More details in the next few days…
Archive for March, 2010
TCNJ Printer: Quick update…
March 25th, 2010TCNJ Printer Update: So close, yet so far
March 6th, 2010I’ve been racing to get my printer done before spring break starts (now) and I leave for a conference next week (Tuesday). The X and Y decks are in, the power is in, the boards are mounted, and endstops are mounted, the Z deck is in… but… I managed to destroy two of the three ribbon cables used to connect the motherboard to the stepper boards. Not sure how I’m going to replace them as they are no for sale on Makerbot.com. Looks like it’s time to email Bre.
Additionally, while building the plastruder, the insulation tape ripped and I am very unhappy about how loose it ended up being around the print heater. I am likely to order a supply of new items, like the insulation tape, to eventually replace it (summer)?
I’m angry at the build directions, as I can not find how the endstops should be connected, how the wires should go, and if I need to wait to do this. If one follows the directions to a “T”, you would not connect them. Finally, I completely don’t understand the popsicle stick and endstop directions. Can someone post a good close of series of photos of how yours looks? I’m not clear on where I’m gluing the sticks, size of the sticks, where they are placed, etc. The directions are far, far too vague.
Printing Bug
March 5th, 2010Prior to our successful (and very exciting) print the other night, we ran into a curious problem during print attempts. Namely, during the actual printing all the stages would suddenly stop but the Plastruder would continue emitting plastic. Here is an example of a failed attempt:
We even tried loading the model onto an SD card and building from the card. The same problem occurred. The interesting thing about this is that the print would stop in a random location each time. Finally, after digging around some forums for awhile, I found a post by someone suggesting a specific combination of versions for the software and firmware to use. With a lack of anything else to try, we decided to give it a shot. This involved downgrading the current versions of the software and firmware we were using. We then, with anticipation, attempted another print and, seemingly like magic, it worked!
Here is the list of software/firmware versions that we were using when our print was successful:
ReplicatorG 009
Skeinforge 005
Motherboard firmware 1.4
Extruder firmware 1.6
First Print!
March 4th, 2010Sara and Stephanie should be very pleased; they are responsible for the construction of Allegheny’s first Cupcake CNC 3D printer!
[youtube width="560" height="340"]http://www.youtube.com/watch?v=D1RcMtu1UR8[/youtube]
This was very exciting.
The builders and their aptly named Victory Cupcake. Many congrats.


