On Halloween this year, we hosted a potluck in the Innovation Center. Music, pumpkin carving, and a couple of experiments, including turning the X-Carve into a pancake machine. We went with a low tech approach, simply replacing the router with a squeeze bottle and relying on thin batter and gravity to keep things flowing.
We also laser etched Nova (our space bunny mascot) onto a pumpkin, which turned out surprisingly well!
With the floors finished, things are finally getting a little bit closer to normal in the makerspace. Moved the X-Carve from the clean lab to the dirty lab, and tested out cutting some HDPE in preparation for a mosaic tile project.
Slowest router speed is best – less fuzz.
Even at the slowest speed, there was plenty of fuzz that needed to be cleaned up with an X-Acto knife.
Pause at your own risk. I paused the cut out of courtesy to the Data Science club, and the job never recovered. When I tried to restart, the X-Carve ignored my pleas. After a while I gave up, and tried to re-run the job using the previously established zero. Things went bad quickly. Easel didn’t seem to care about my prior zero setting, and charged forward, about 6 inches off the mark. I ruined the in-progress HDPE blank, and shaved a little bit off of the waste board besides.
Even with those minor hiccups, I’m loving the final result!
The dust shoe I mentioned in a previous post for the X-Carve printed nicely over the weekend, and today I had some time to assemble it and get it installed.
The instructions called for a strip of vinyl to use as the skirt for the shoe. It pays to be obsessive about hoarding things that might contribute to projects, and I remembered that I had squirreled away several feet of multicolored vinyl, from where I can’t remember. I fished around in the parts area, which is filled with old printers, pieces of foam and plastic, metal brackets, and the like, and found it. Though there’s nothing in the photo for scale, but suffice it to say that the crumpled pile below represents A LOT of vinyl – probably 8′ or 10′ x 4′ of it?
I cut a strip from the bright yellow scrap, and installed it on the shoe, then installed the shoe on the router. Tomorrow I hope to have time to actually turn the machine on (in router mode, rather than in plotter mode) and see how it works!
Max and I spent some time in the shop this afternoon, brainstorming Chemistry activities that will make use of the new X-Carve and vinyl cutter, and working on the new Ultimaker 2 Extended+ that arrived the other day. After some tweaking, we got the printer running, and decided to print this Dewalt DWP611 Thread-On Dust Shoe from Thingiverse (CC BY Noah Mackes). Up until now, we’ve been using the X-Carve as a plotter, but Marisa Sayago (Professor, Art) and I have been talking about some printmaking ideas that involved cutting and engraving, hence the need for the dust shoe.
The printer reported that the job was going to take 17 hours, so Max and I decided to set up a webcam and do some R&D on Open Broadcaster Studio, which I have been considering using for the live fishcam that will be part of the aquaponics project. We installed the software, plugged in the camera, put in the YouTube live streaming information, and it all worked perfectly right out of the gate.
By the time I got home, the camera had slipped or been knocked sideways, but the print is still visible!
I’ve been working with technology for many years, but the idea that I can relatively easily monitor from home a 3D print job of a part I need and was able to download for a CNC machine that can be used to support (among other things) hands-on student activities in Chemistry and Art, while simultaneously testing a software program and a streaming service for another project that combines Library, Chemistry, Biology, Theater Arts, fish, and plants is, frankly, pretty neat.
We don’t have dust collection set up just yet, so running the router on the new X-Carve is a messy prospect. Max Mahoney (Chemistry) has ideas about using the machine for some copper etching labs, so we set about adapting it for a pen. We fairly quickly found a model of a 3D printable pen holder for the X-Carve (CC BY Duane Northcutt), and printed it out, tapping the holes for M4 screws. PLA surprisingly seems to hold a thread fairly well.
After several experiments with various pens, we were able to successfully draw a pleasing circular Voronoi tessellation using an orange Vis-a-Vis overhead transparency marker on 12″ x 12″ piece of foam core board.
The whole thing took about 36 minutes to complete. Here’s a short, mesmerizing (to me anyway) video of the CNC hard at work.
The build crew met again this morning for the third and final X-Carve build day.
Finished up the work area, z-axis, drag chains and final wiring…
After a few perplexing challenges, especially regarding the mounting of the y-axis drag chain, we were able to finish the build, fire the machine up, and make our first test cuts!
All in all, a very satisfying build, and we learned a lot. For anyone looking to build an X-Carve, I would advise double-checking the forums at Inventables if you run into inconsistencies in the instructions – there aren’t many, but there are one or two differences between the current shipping kit and the videos and build instructions online. I would also advise using the GrabCAD models. We ignored these until the very end, but they proved very useful when figuring out the drag chain mounting, and I wish we had checked them sooner – we pretty much ignored them until the very end of the build.
Potato quality video – I was holding the vacuum in one hand and trying to shoot video with the other, and apparently the iPhone didn’t know upon what to focus):
In the next couple of days, I hope to get the dust extraction situation worked out, and to extend the XYZ wiring so that the power supply can live a little farther from the machine.
Back to the build… After a successful build day last week, we started Build Day 2 with some goodies, including Diane’s home-roasted coffee, egg and cheese sandwiches, homemade scones, muffins and pastries:
Today didn’t go quite as smoothly as I’d hoped, mostly because I mistakenly believed that one of the rails had not been tapped, which triggered a mad dash to the local hardware store for a tap and die set that turned out to be unnecessary. My mistake transformed into a learning experience and some skill building, so it wasn’t all bad:
We were able to get the Z-axis assembled:
And all of the motors wired:
We’re planning on finishing up the project after the weekend, and then we’ll get to carving!