Watched this last night, fun little video. Crazy that this thing can do PEKK but at the price it makes sense
1 Like
This is fairly old now but what was the purpose of the washers in the middle of the print/is there more info on this posted somewhere?
I’ve been on his patreon for ages because I love the bastard but I’m still always late to the party. Youtube doesn’t show me stuff quickly and I don’t pay enough attention to the stuff I’m paying for
2 Likes
Modded Ender is finally up and running! Decided to go direct drive with a .6mm nozzle due to TPU’s limitations on print speed. Now to see if I can figure out how to glue TPU together… Print bed isn’t exactly big enough to print footpads.
6 Likes
First iteration - no spikes
Second iteration - w/ spikes for grip
Have since been testing mainly. They’ve been working really nicely. Actually borderline too good. I had to loosen my bindings way up to be able to slide out of them; otherwise my shoes would stick. @skate420 took them for a spin when we road some sweet sweet single track trails in her hood. She seemed to like them.
Edit:
Washers give a more stable (i.e. steel vs tpu) mounting hole for the spikes
6 Likes
The spikes hold your foot in place really well! I didn’t use them with the bindings on but I imagine you could pretty well lock your foot in place with the combination of the two. Definitely something to try if you like super grip.
7 Likes
I just recently transferred all my Thingiverse models to Printables.com because, well, it’s better in just about every way, and I thought I’d turn it into a minor “call to action” post on here, because why the hell not. If you’ve got models up on Thingiverse and you don’t already have them on Printables too, well you should. They have a nifty automatic import tool and everything.
If you want, you can go check out what I’ve got up there, some of it is esk8-related, some of it is random other crap. Who knows, you might find something useful or interesting. I’ve got a bunch of other models in my Fusion 360 that I’ll probably throw up there later if I remember.
7 Likes
Fully agree. Thingiverse is hot trash, and has been for years.
7 Likes
I use thingiverse the most just because it lands on the top of searches and seems to have a big back catalog, is printables established long enough to have stuff on it and/or where else should I be searching? Mostly non skate related, just random home stuff or hobby electronics
1 Like
Thingiverse was the defacto standard for years because it was owned and operated by Makerbot, but since their acquisition by Stratasys (IIRC), Thingiverse has been basically abandoned, with broken features and no updates.
Printables is run by Prusa, so it has an established userbase from Prusa customers, and it is actively being worked on and improved. It doesn’t have as much of a back catalog just because it’s newer, but that can change - They have an automatic import tool that will copy everything from an existing Thiniverse account to a new Printables account with very little effort on the part of the account holder. It’s just a matter of getting people to migrate.
9 Likes
Cool, prusa seem like a much more community focused crowd with the reprap ties and open source stuff. Have you used thangs much? I saw a couple of Collab/sponsor spots from maker YouTubers with them
5 Likes
+1 have abandoned thingiverse as the relic is it. Printables is the latest in a line of attempts to centralize (thangs, cults, wikifactory, myminifactory, etc), but I fully expect it to become the default. There is a ton of love for Prusa out there, they’re proven high quality, and the site design is quite nice (and familiar).
10 Likes
Not to mention that Josef Prusa is a genuinely nice guy that likes to interact with the community, and responds to community issues and suggestions.
9 Likes
So, today my Ronin truck’s support pin cup started to split in half.
As it is out of stock literally everywhere… I have been thinking about 3D printing a replacement. But not just for that one part, but for all Ronin specialty parts that are wear items.
From left to right:
-
Pivot tubes, made out of poliurethane. Serves the purpose of the pivot cup in other skate trucks. Just out of curiosity, how badly would hard TPU fare here?
I am likely going to print a mold and pour some urethane, but that’s still a few months out. -
The tube around the support pin is made of delrin (POM). It’s used to hold a steel part called queen pin / support pin, that can slightly move up and down in this tube. There is some side to side force too when turning, but it’s 90% supported by the truck. It’s there to reduce friction and wear probably. Can printed Nylon substitute that? Or maybe a hard TPU?
-
The bushings that get compressed and go into the support pin are likely PU, they are quite soft. Judging by hand maybe around 60-70A. It’s getting compressed in use. Would likely need to pour some urethane to get this right. But could a 3D printed one out of very soft TPU work for a while?
-
The support pin cups are quite hard, but not rock solid… There is a steel ball on the end of the support pin that pushes against it and can rotate inside it. What material should I use? Hard TPU?
Anything made of polyurethane could probably be done out of TPU without too much detriment.
The POM part would be best in something slippery and wear resistant like nylon. You can actually get POM filament, but I’ve heard that it is an absolute bastard to print in every possible way imaginable, and you need a very advanced printer setup to even try it.
1 Like
Thanks! One more question, do you think that the softer PU part could be printed out of the same TPU as the hard ones, just with lower infill percentage?
I don’t have enough experience with the parts or printing TPU to make an intelligent judgement on that. I’d say try it, see if it works. If not, you could 3d print a mold and cast your own urethane.
1 Like
My guess is that for durability, you are going to need all of these parts to be printed 100% solid. Dialing in the squishy-ness of your parts by adjusting walls/infill sounds like hell, and I cant see the hollow parts holding up very well.
I suggest you print everything solid, and use different durometer TPU/cast urethane if needed.
5 Likes
An extremely interesting and innovative 3d printer design.
3 Likes