Spicy Onion!!!! Eat so tasty
@bepis.bsky.social
I post about topics such as primal terrors in the human mind
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Off to the races!! This is my first racetrack run with my 3D printed tiny marble set, it works!! :) :) :)
November 16, 2025 at 1:09 AM
Also here's the onshape if preferred cad.onshape.com/documents/b6...
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November 16, 2025 at 12:53 AM
Also here's the onshape if preferred cad.onshape.com/documents/b6...
This is fins design, I think it looks cool, kinda like an insect/eleytra, will need to wait for start piece(!! So excited) to finish printing before I try it
November 16, 2025 at 12:47 AM
This is fins design, I think it looks cool, kinda like an insect/eleytra, will need to wait for start piece(!! So excited) to finish printing before I try it
This one I’m pretty happy with and works fairly well however sometimes marbles come out at high velocity and bounce off an existing marble in track and escape, adding fins to catch them…
November 16, 2025 at 12:47 AM
This one I’m pretty happy with and works fairly well however sometimes marbles come out at high velocity and bounce off an existing marble in track and escape, adding fins to catch them…
It’s ok but I don’t like how the walls go in like that
November 16, 2025 at 12:47 AM
It’s ok but I don’t like how the walls go in like that
Third attempt, looks much better however I find the flat bottom (to make it less deep) causes them to bounce upon entering this piece and escape, adding walls…
November 16, 2025 at 12:47 AM
Third attempt, looks much better however I find the flat bottom (to make it less deep) causes them to bounce upon entering this piece and escape, adding walls…
Second attempt, less deep helped but still looks weird, trying to make base thicker
November 16, 2025 at 12:47 AM
Second attempt, less deep helped but still looks weird, trying to make base thicker
First attempt, it looks a lil weird and is too deep so hard to reach in and get marbles
November 16, 2025 at 12:47 AM
First attempt, it looks a lil weird and is too deep so hard to reach in and get marbles
If you want to try them out, here's the files makerworld.com/en/collectio...
Tiny Modular Marbles | Collection - MakerWorld: Download Free 3D Models
makerworld.com
November 16, 2025 at 12:41 AM
If you want to try them out, here's the files makerworld.com/en/collectio...
0.025 seems to last for at least 1000 connections. It requires a bit of effort to loosen them up initially (5-10 connections), and then they work very well!
So I’m just pleasantly surprised tbh I didn’t expect it to be this good
Finally, here’s a marble run setup I made with these pieces
So I’m just pleasantly surprised tbh I didn’t expect it to be this good
Finally, here’s a marble run setup I made with these pieces
November 16, 2025 at 12:38 AM
0.025 seems to last for at least 1000 connections. It requires a bit of effort to loosen them up initially (5-10 connections), and then they work very well!
So I’m just pleasantly surprised tbh I didn’t expect it to be this good
Finally, here’s a marble run setup I made with these pieces
So I’m just pleasantly surprised tbh I didn’t expect it to be this good
Finally, here’s a marble run setup I made with these pieces
So that’s our upper bound, but, can we make something that doesn’t initially require a hammer?
In my experience, 0.025mm is the sweet spot. 0.02mm tends to just feel friction based and loses strength quickly, whereas 0.03mm is too firm. 0.035mm is okay if you want firmer)(something about discretiz)
In my experience, 0.025mm is the sweet spot. 0.02mm tends to just feel friction based and loses strength quickly, whereas 0.03mm is too firm. 0.035mm is okay if you want firmer)(something about discretiz)
November 16, 2025 at 12:36 AM
So that’s our upper bound, but, can we make something that doesn’t initially require a hammer?
In my experience, 0.025mm is the sweet spot. 0.02mm tends to just feel friction based and loses strength quickly, whereas 0.03mm is too firm. 0.035mm is okay if you want firmer)(something about discretiz)
In my experience, 0.025mm is the sweet spot. 0.02mm tends to just feel friction based and loses strength quickly, whereas 0.03mm is too firm. 0.035mm is okay if you want firmer)(something about discretiz)
Initially at 0.05 you need to use a hammer to get them in, but eventually they loosen up a bit. I find 0.05 works fairly well (holds strength) even after 2500 connections!
November 16, 2025 at 12:33 AM
Initially at 0.05 you need to use a hammer to get them in, but eventually they loosen up a bit. I find 0.05 works fairly well (holds strength) even after 2500 connections!
They fit in like this.
I tried lots of settings.
What seems to matter is how much the piece needs to stretch inwards to slide past.
If we do 0, it’s back to friction based and it doesn’t work well.
But 0.05mm (yes you read that right) is too large.
I tried lots of settings.
What seems to matter is how much the piece needs to stretch inwards to slide past.
If we do 0, it’s back to friction based and it doesn’t work well.
But 0.05mm (yes you read that right) is too large.
November 16, 2025 at 12:32 AM
They fit in like this.
I tried lots of settings.
What seems to matter is how much the piece needs to stretch inwards to slide past.
If we do 0, it’s back to friction based and it doesn’t work well.
But 0.05mm (yes you read that right) is too large.
I tried lots of settings.
What seems to matter is how much the piece needs to stretch inwards to slide past.
If we do 0, it’s back to friction based and it doesn’t work well.
But 0.05mm (yes you read that right) is too large.
Here’s the solution I found:
Have a sticking out piece at the top, and ridge it needs to pass over at the bottom.
Have a sticking out piece at the top, and ridge it needs to pass over at the bottom.
November 16, 2025 at 12:29 AM
Here’s the solution I found:
Have a sticking out piece at the top, and ridge it needs to pass over at the bottom.
Have a sticking out piece at the top, and ridge it needs to pass over at the bottom.
If you design your snap fit right, you can keep your deformation within the elastic range too, and then you can get much better longevity
But how do we do snap fits on tiny marbleworks pieces?
But how do we do snap fits on tiny marbleworks pieces?
November 16, 2025 at 12:26 AM
If you design your snap fit right, you can keep your deformation within the elastic range too, and then you can get much better longevity
But how do we do snap fits on tiny marbleworks pieces?
But how do we do snap fits on tiny marbleworks pieces?
Well, the trick is snap fits:
You have one of these guys sticking out on one side, and a hole on the other side (ty @slant3d.bsky.social )
The advantage of snap fits is the piece is only deformed during insertion, but once inserted it is no longer deformed, so it’s safer to leave things connected
You have one of these guys sticking out on one side, and a hole on the other side (ty @slant3d.bsky.social )
The advantage of snap fits is the piece is only deformed during insertion, but once inserted it is no longer deformed, so it’s safer to leave things connected
November 16, 2025 at 12:24 AM
Well, the trick is snap fits:
You have one of these guys sticking out on one side, and a hole on the other side (ty @slant3d.bsky.social )
The advantage of snap fits is the piece is only deformed during insertion, but once inserted it is no longer deformed, so it’s safer to leave things connected
You have one of these guys sticking out on one side, and a hole on the other side (ty @slant3d.bsky.social )
The advantage of snap fits is the piece is only deformed during insertion, but once inserted it is no longer deformed, so it’s safer to leave things connected
On the other hand, a Lego connector can get to up to 3000 connections before it loses its strength. So what do we do?
November 16, 2025 at 12:20 AM
On the other hand, a Lego connector can get to up to 3000 connections before it loses its strength. So what do we do?
A well-tuned friction-based connector can only work for 100-200 connections before the layer lines are sanded down enough that it no longer holds. In practice, it’s often much less than this (10-20 connections)
November 16, 2025 at 12:20 AM
A well-tuned friction-based connector can only work for 100-200 connections before the layer lines are sanded down enough that it no longer holds. In practice, it’s often much less than this (10-20 connections)
This is something you encounter if you try to 3D print layers: the connector seems to work very well at first. This is because the layer lines have roughness between them, this friction holds the piece in place.
Friction snap fits are very good, but, their Achilles heel is their longevit
Friction snap fits are very good, but, their Achilles heel is their longevit
November 16, 2025 at 12:18 AM
This is something you encounter if you try to 3D print layers: the connector seems to work very well at first. This is because the layer lines have roughness between them, this friction holds the piece in place.
Friction snap fits are very good, but, their Achilles heel is their longevit
Friction snap fits are very good, but, their Achilles heel is their longevit
2. If you try to do this sort of connector anyway, you’ll find it actually seems to work well. Even… if you make pieces that cannot deform at all? Wut?
Well, this is because the connectors are friction based
Well, this is because the connectors are friction based
November 16, 2025 at 12:17 AM
2. If you try to do this sort of connector anyway, you’ll find it actually seems to work well. Even… if you make pieces that cannot deform at all? Wut?
Well, this is because the connectors are friction based
Well, this is because the connectors are friction based
Similarly, it’s better to have something that temporarily deforms, then something that is constantly deformed: the longer you leave it the more likely deformations will become permanent (iiuc)
November 16, 2025 at 12:16 AM
Similarly, it’s better to have something that temporarily deforms, then something that is constantly deformed: the longer you leave it the more likely deformations will become permanent (iiuc)
For two reasons:
1. Plastic creep: Materials when deformed, have an “elastic range” (will return back to original shape) and “plastic range” (once you deform this much, the deformation is permanent)
Lego uses a special type of ABS with a larger elastic range, marbleworks do too(?). PLA is tiny(2%)
1. Plastic creep: Materials when deformed, have an “elastic range” (will return back to original shape) and “plastic range” (once you deform this much, the deformation is permanent)
Lego uses a special type of ABS with a larger elastic range, marbleworks do too(?). PLA is tiny(2%)
November 16, 2025 at 12:15 AM
For two reasons:
1. Plastic creep: Materials when deformed, have an “elastic range” (will return back to original shape) and “plastic range” (once you deform this much, the deformation is permanent)
Lego uses a special type of ABS with a larger elastic range, marbleworks do too(?). PLA is tiny(2%)
1. Plastic creep: Materials when deformed, have an “elastic range” (will return back to original shape) and “plastic range” (once you deform this much, the deformation is permanent)
Lego uses a special type of ABS with a larger elastic range, marbleworks do too(?). PLA is tiny(2%)