clockspring3D
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Torture Toaster!
🕑 Added 2021-03-23 04:49:02 +0000 UTCHey there, wonderful people!
So, a few months ago I had a guest spot on the Edge of Tech YouTube channel, where I rambled on and on about printing and design. They were awesome and passionate people, and the show was a lot of fun! After the show they challenged me to make some kind of fun torture test that they could use when testing printers, and just to make the world a slightly more fun place in general.
Obviously, we needed a toaster.
But what is this thing? It's a print-in-place pop-up toaster with hinged sides, an integrated lever and sliding linkage to move the toast, geared locking pins, and a few things that will put your printing setup to the test. If it's all printed successfully, you'll be able to push down that side lever and watch the toast pop up! If things have gone wrong, your toast may well be forever condemned to stay on the ground.
The funny thing is, I had to actively make this tougher to print, because I've well-and-truly trained my brain to design for reliable printing :)
Printing Tips
Okay, let's think about all the things that can go wrong here!
1. Bed adhesion. This is by far the most important thing. There are some sliding tolerance testing pins that have only small contact area with the bed. These will test your bed adhesion the most, and failure can lead to some internal spaghetti that can weld parts together. Also, the sliding pins will look bad. Or absent.
2. Elephant footing. There's a degree of risk mitigation built into the model, but if you squish it down hard enough you'll potentially weld the side cogs into their housings and join all the moving toast parts together. The sides may also not be able to fold up if the elephant footing is too bad!
3. Stringing. Your toast will look bad if you have any stringing. Severe stringing will stop your toast moving at all! This is a risk factor for any articulated model, but this one has stuff moving in all sorts of directions.
4. Anything that compromises dimensional integreity. So, overextrusion, warping, shifting, anything that lets a piece extend beyond its intended area can cause bonding, block movement, impair hinges, and so on.
Other than that, though, it's easy!
The model prints base-down with the sides folded out, like so:
File Location
This one's freely available and will be published in a few places, but it's included on Dropbox for convenience. You'll find it under: 767 Torture Toaster
(Dropbox link post: https://www.patreon.com/posts/dropbox-and-are-31697592 )
Further Thoughts
There are few things more fun than coming up with a ridiculous idea and then taking it very seriously. Enjoy the toast! :D
xoxo
Sven.
Comments
Clockspring3D
So good! I love that gold 😍
Clockspring3D
Yeah, cooling sounds likely! The MK3S+ should be able to print this very nicely with the right settings!
Clockspring3D
0.1mm should work fine, but I used 0.2 (and 0.5!) In my testing! Would having separate files for the individual objects help with doing a multicoloured version? If so, let me know and I'll get them posted! :)
Andrew Soderberg
Completed the print successfully on my Prusa MK3S+ picks are here: https://www.thingiverse.com/make:918161
Just finished printing it! Only one piece of toast popped up :( The overhangs were too much with my settings on my MK3S+ and they just didnt fuse. Also the overhangs on the toaster lever looked awful, gotta be something with my cooling?
What would you recommend for Nozzle size, and layer height. I can print with 0.20 nozzle at 0.10 layer height, if you think it needs to be that fine. Once I get it to print well in mono. I may, time permitting, make it a multi-color print on my IDEX printer.
Clockspring3D
Yeah, resin is just such a different world when dealing with this sort of stuff!
Clockspring3D
Yes, but inevitably with problems! Things tend to get inadvertently bonded together, and any shrinkage, especially non-uniform, is going to be a huge problem. But that doesn't mean you shouldn't try it anyway :)
Clockspring3D
Thanks, man! :D
Clockspring3D
That's fantastic! The best kind of crazy :)
I've never had any luck printing compliance prints on a resin printer. The first layers are by nature way overexposed, and have too much elephant foot. Have never tried putting then on supports, always tried to print it like it would on a FLM printer.
dumdumdev
Just built a printer and will put it through it's paces with this. Yes, I'm crazy!
Carlo Krun
I love all your work. Has anyone ever tried printing your stuff on a resin printer?
You really did a great job with the Torture Toaster! I can't wait to see what people do with it! Thank you so much for taking on the challenge and blowing it out of the water!
Clockspring3D
Certainly! :)
Can this be used to show a custom printer capabilities with credit to you?
