Way back in 2008, the Innovation Center got its first 3D printer, a Z Corporation Z450. At the time, it was very difficult to explain to most people what “3D printing” even meant, as it hadn’t yet entirely entered the public consciousness. Professor Dan Ross (Engineering and Computer Information Science) was an early adopter, and was in fact the first FLC faculty member to incorporate 3D printing into his courses.
Fast forward to 2017. The Z450 has long since given up the ghost, and we’ve got a few 3D printers sprinkled around the college, including a LulzBot Taz down in the Theater Arts shop, a few Makerbot Replicators in the Engineering classroom, and the U2E+s, U3s, Rostock Max, and Form 2 in the Innovation Center.
This semester, students in Dan’s Engineering 312 : Engineering Graphics course worked on designing and printing gear boxes.
I had the chance to talk to some of the students in the lab toward the end of the semester (which is winding down), and saw some of the parts-in-progress on the printers, but until Dan sent these photos, I hadn’t seen the completed student work. I have to say I’m pretty impressed, and it’s great students using digital fabrication to solve real-world challenges.
A couple of weeks ago, Nathaniel (student) set out to replace a (mysteriously) missing piece of his car with a 3D printed part. He carefully measured the remaining bit, modeled the replacement using Tinkercad, which is really accessible and easy to use. He then printed the replacement part using an Ultimaker 3, which took all of 22 minutes.
After a few minor modifications with the Dremel…
…a good fit was achieved…
…and the car was fixed!
It’s especially satisfying to see 3D printing used to empower people to solve real-world problems.
The new Ultimaker 3 arrived the other day, and Thomas Schmitt (student) unboxed it and got it set up and calibrated. Thomas has been designing a bobbin for fly fishing fly tying, and some of the project parameters, including a threaded rod and a hollow tube that serves as a thread guide, seemed to provide a good test case for a first print on the U3. The machine comes standard with dual extruders, and ships with a roll of PVA, a water-soluble filament.
The first print came out really nice, and the water-soluble support material is a game changer, especially for printing certain fine details and hollow areas. Some of the tricky biology models that faculty want to print are finally going to be within reach.
Assembled a team of faculty and students to continue work on the Rostock Max v3 (part 1, part 2). As before, the project is nicely modular, so while Max (Chemistry) and CJ (student) worked on the electronics…
…Diane (Sociology), Alex Hartigan (student), and Thomas Schmitt (student) focused on the main assembly.
As it turns out, instead of three each of the inner and outer bits that hold the bearings for the carriage, the kit included four and two. We talked about some options, and the crew decided to mod one of the errant parts to make it work, which involved sawing off a bit of it…
…and drilling a couple of holes…
…while I contacted the vendor about sending a replacement. We think our modified part will work, but I’m working on getting the right part sent, just in case.
We’ve probably got at least another day of work before the printer is finished, and as folks began drifting away, Levi (receiving) delivered 12 new lab stools. CJ, Alex and Thomas hung around and helped assemble them.
Still waiting on the workbenches, which should be here in the next couple of weeks. Lots of energy, and lots of making!
Hosted the second Rostock Max build day today. The crew – mostly the same folks from the first build day – put in a good day of work, and we got much of the hot end done, finished up the base, and made good progress on the top assembly. We decided to adapt the topping out tradition, aka “signing the beam,” though we aren’t actually finished with the build.
Students Alex Hartigan (Math and History project champion) and Kristina Johnson showed their appreciation for their Calculus 3 professor Kevin Pipkin by designing, printing, and presenting to him this lovely award.
It sometimes takes a while to get rolling on a complicated build. I’ve learned that one of the best ways to kick things off is to get all the participants doing something communal and simple, so we started by collectively picking out all the little bits left over from the laser cutting process. A low risk/high reward opportunity for the group to gel, visit, socialize, and quickly develop a common purpose.
This kind of social busywork seems to scratch some shared primate itch, and reminded me of my favorite moment from last summer’s Making Across the Curriculum workshop, during which folks gathered around to chat and pick the protective paper off of Diane’s Wheel of Voting Rights project.
That finished, we loosely divided up the work and got to building. With this particular build, there are a lot of steps that can be completed independently and in no particular order – in other words, not a lot of serial dependencies – so folks were able to dive in and work in pairs and trios without (usually) having to wait for others to finish. Despite a few missing parts (which turned out not to be missing after all), we made a good start, and will continue building later in the week.
Some significant failures recently in the 3D printing department. Inspired by Steve Holzberg’s (Biology) cancer prints, Linda Abraham (Biology) found a model of a rhinovirus for printing. Given the complexity of the model, and the intricately folded surface detail, we decided the Form 2 was the printer to use. Loaded up the clear resin and let it print. The result:
Mostly it worked fine, but the top of the model had problems. A strange rupture appeared in the sphere:
The anomaly coincided with, was caused by – or maybe left? – this cloudy residue in the tray:
The tray was fresh out of the wrapper, and it was the very first run of clear, so I’m not sure exactly what caused the failure. In any case, the model is still perfectly usable, after a little filing to smooth out the jagged edges of the rip.
The center part of the model printed beautifully, and after some careful calculations to determine where things went wrong, Max set out to print the remainder of the model – in pink, since we ran out of white filament – with the idea of gluing them together somehow.
This one too is failing out on the margins. Support material configured as a tower seems to be the common failure point. Stay tuned…
Had the opportunity to work with students from FLC’s Math & Engineering Club this afternoon. In a conversation some weeks back, Brandon (club president) and I discussed using the XBox Kinect sensor as a 3D scanner, something I’ve been wanting to do since last semester, but have not had the time to get going. I let Brandon know that I had two such sensors in the lab – the 360 version and the newer XBox One version – and so we arranged to meet today to go over the process. Brandon as it turned out brought the whole club.
They set to work scanning one of their colleagues, along the way learning things about object placement, lighting, and the Skanect software. Meanwhile, the newly-formed Data Science Club met in the main lab to talk about an app they’re designing.
While Brandon worked on cleaning up the scan of Chris, I walked the other students through changing filament on the Ultimaker and setting up a print job in Cura.
Brandon ended up doing the Han Solo frozen in carbonite treatment to deal with some weirdness on the back of the scan, in the process adding a party hat. I let Chris do the honors of starting the print, and then we set up OBS Studio to stream the print job to YouTube so that the M&E students could monitor progress remotely.
As it turns out, the model didn’t quite print correctly, so there’s some work to do there, but isn’t that why we prototype?
This was the first of hopefully many chances for the M&E Club to work in the Innovation Center, and I’m looking forward to finding ways to plug students in to various projects, in the mold of the History game tiles project.