Tag: 3dprinting

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Pete’s Prints at Maker Faire Milwaukee

Back in 2015 I became a Producer for Maker Faire Milwaukee, and helped put on the Faire for the next four years until 2019. Life changed a lot in 2020 and I did take part in the event as a Maker in 2021 and 2022, but life got a little upset in 2023 so I just attended as an Attendee. Well, it’s 2024 and I’m back as a Maker!

So come on down to the 2024 Edition of Maker Faire Milwaukee happening on November 23rd & 24th November 2nd & 3rd at Discovery World and see Pete’s Prints.

HEY! So yes, the date has changed! It was November 23rd & 24th but is now November 2nd & 3rd, 2024.

I will be there to show off my unique relief printmaking process. If you missed it, I designed and 3D printed my own mould & deckle and I make my own paper, mostly from recycled junk mail and other scraps of paper, and I then 3D print printing plates and print with them (onto the handmade paper) using a DIY printing press I assembled. Oh, I also 3D print frames for the prints.

Yeah, that’s a lot, so here’s a list of all of the posts I’ve written about my printmaking endeavors over the last year or so:

Whew! If you read all of those (or even just some of them) you might have some insight into my process. If not, feel free to come to Maker Faire Milwaukee and ask some questions!

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Bike Lock Mount Spacer

I have a bike lock that mounts to the seat stay by clamping around the tube and it’s never quite fit right. I can tighten it all I want but the plastic on metal doesn’t really prevent it from rotating slightly. It’s not a huge deal but it’s enough to bother me.

In the past I had a GPS handlebar mount and it came with a little piece of rubber to help shim it tight and grip the bar which prevented it from rotating. I didn’t have any random pieces of rubber around, but I do have flexible filament! TPU (or Thermoplastic PolyUrethane) is 3D printing filament that is sort of soft and flexible, so I loaded it up in the Prusa MINI+ and designed a piece in OpenSCAD.

When I say “designed” there is barely a design, as it’s just a hollowed cylinder with a slit down the side. While 3D printed parts can be complex, they can also be really simple. (I once printed a shim!)

Again, for me it’s all about solving problems. I could have hunted around for a piece of rubber, or ordered some, but I had the filament on-hand, I can design things quickly, and they can print while I do more important work.

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Bike Seat Light Adapter

Back in February I got a set of bike lights and the rear light mounted on the seat post perfectly, but I recently added a bike rack and bag which blocked the light from view. At first I attached the rear light (which is also a reflector) to the back of the bag, but it wasn’t ideal.

So looking at the options I thought mounting it to the back of the seat (on the saddle rails) made sense, but I needed an adapter, so I designed and printed one. I’ve said it before, but I’ll say it again: This is why I like 3D printing. I’m not interested in printing little toys or trinkets, I am interested in solving problems.

I fired up OpenSCAD and designed a cylinder, split it in half, added holes/grooves to fit around the bars on the seat, and then added a hole for a bolt to go through to clamp it together.

One side of the bolt hole allows the head of the bolt to be recessed so it doesn’t stick out, and the other side allows for the hex nut to be held captive so you can tighten the screw with the nut held in place.

I remember back in 2012 when I asked Michael Curry if he got designs right the first time and the first print worked perfectly, and he said that most designs took about three attempts… I’m happy to say this one took just two! (Well, I could probably slightly improve things with a third attempt, but the second was close enough so I called it done.)

I did have to slightly cut down the bolt with a hacksaw to get it to not stick out too far. Again, a third print could have addressed that issue, but sometimes a hacksaw is the right solution to a problem.

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Deftaudio MIDI Enclosure

I’ve mentioned Sky Creature before, as I’ve made a few things for them. So back in April I was chatting with Matt and he said he got a Deftaudio Teensy MIDI Breakout Board but would have to figure out an enclosure for it. I said something like “I make a lot of enclosures!” and he said “I’ll keep that in mind!” and then I totally forgot about it.

Matt did not forget about it though, and asked me to knock out an enclosure for it before they headed out on tour. He shipped me the assembled and programmed device and I designed and fabricated an enclosure for it. Oh, I also added circuitry so it could be powered by a standard guitar pedal power supply, which is a barrel jack with 9 volt tip negative. I threw in a power LED while I was at it. (The Deftaudio board is nicely designed and easy to add things to via a set of male pin headers on the board.)

I got this done it about a week. The funny thing is that I sent Matt a photo and he said “That’s a great looking render” and I said “Sir, that’s a photo… I’ve finished it!” but sadly I forgot he wanted easy access to the USB port for (re)programming. I had it so you could remove the bottom cover and get access but I ended up redoing the body of the enclosure to make it easier.

It was sort of last minute and a rush and I don’t know how elegant it is, but there’s a little swinging hatch that pivots on a 3mm screw with a cap nut cranked tight on the end of it. The other side of the hatch has a small screw to hold it in place…

The idea being that you remove one screws and flip the door around 180 degrees to plug in a Micro USB cable, program it, then remove the cable and replace the little door. I think it’ll work well!

I also sent Matt a bag of extra screws. The screw used for the door is the same size as used on the bottom to hold the cover in place, so a few extra seems like a good idea, I used plain old 3mm pan head screws for the top so those could also come out with a standard screwdriver. I typically use black button head screws because they look better, but I didn’t want to include a tiny hex key when a standard Philips screwdriver is probably easier to attain.

I also did a two color print for the top cover and the USB door. The door print didn’t turn out amazing (rush job, didn’t have time to print another) but I think the top looks really good!

Anyway, I really like doing these sorts of things, so if you have a project in mind let me know!

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Vertical Stick-On Lip Balm Holder

I made a Vertical Stick-On Lip Balm Holder because more than one person seemed to want their own… See, I keep a lip balm in the car, and in the summer I park outside, and it gets hot, and at least a few times I’d grab my lip balm and realize it got all melty and pooled to one side of the cylinder and that was definitely not cool…

So I quickly printed this thing. It’s a cuboid shape with a round hole in it. (There hole gets wider at the top to allow for easier insertion while driving. Anyway, I posted this and people were like “I want one!” or “I need one!” or “You should patent this!”.

Well I’m not gonna patent it, as that seems like a lot of work. I don’t event want to sell them, as I prefer to just give them to people if possible. And it is possible. In fact, I made a bunch of them to give away.

So yeah, I printed a bunch, added a little informational sheet, and dropped them into Gallery 69, the Free Little Art Gallery in front of my house. If you’re local and want one, just come and grab one. They probably cost about one US dollar if I include the cost of the plastic, the tape, and some of the electricity to run the printer. If you really want to pay for it I’ve included a Venmo username to send money to. (And when you pay for one that means I can make more to give away because that’s how I do things.)

There’s a few people who wanted the file, so you can grab that and print your own… and I supposed I could mail some out to people if you don’t have a friend with a 3D printer, but honestly finding a printer and printing one locally is probably better than mailing them out since postage would probably add a few more bucks to what should be less than a dollar.

You can get the STL file from Printables.com – Vertical Stick-On Lip Balm Holder though you’ll have to provide your on double-sided tape!