Trammel of Archimedes

hellpie
Education>Other Education Models
IP Report

Trammel of Archimedes

hellpie
Boost
149
275
17

Print Profile(1)

All
A1
P1S
P1P
X1 Carbon
X1E
X1
A1 mini
0.2mm layer, 2 walls, 15% infill
0.2mm layer, 2 walls, 15% infill
Designer
57 min
1 plate
4.6(11)
Open in Bambu Studio
Boost
149
275
17
6
299
174
Released

Description

This toy demstrates a mechanical principle invented by Archimedes.

 

To print in multicolor, simply use the “cut” function in Bambu studio, to split it into multiple parts.

 

 

Geometry Challenge
------------------------------
Question: Does the center knob move in a circle and with constant angular velocity? - (When the knob is turned with constant angular velocity)

Answer: Imagine a second rod of equal length that forms an 'X' with the first rod. Its center has a hole for the knob. One end of the second rod is fixed to the center.
 - Now the two rods will mirror each others movement and thus have the same absolute angular velocity
 - Any point in the second imaginary rod describes a circle - including the knob.

 - The up-down and the left-right movements of the knob are sine and cosine - and so are the shuttle movements.

General Ellipsograph:
https://en.wikipedia.org/wiki/Ellipsograph

Archimedes - Life and Inventions:
https://en.wikipedia.org/wiki/Archimedes

 

 

toy
trammel of archimedes
education
math
Fidget

Comment & Rating (17)

(0/5000)
@EnnaKenaT
It doesn't hold. not recommend
The designer has replied
1
Reply
@hellpie
It wasnt designed to be able to hold itself together. Youre supposed to hold it properly, or place it on a table.
(Edited)
0
Reply
@EnnaKenaT
Replying to @hellpie :
You should make it so it can hold together. It diassambles even with slight force
2
Reply
@user_2398000385
Replying to @EnnaKenaT :
yes
0
Reply
@Seafoh
works great though I would suggest one additional piece, a cap that goes on top of the part that you hold onto, so that the spin of that grip point isn't twisting against your finger. other than that smooth, easy and reliable print!
2
Reply
@mich100
thanks!
1
Reply
@user_869272434
Print Profile
0.2mm layer, 2 walls, 15% infill
make a lid so it doesnt fall off
0
Reply
@XRAK5854
Print Profile
0.2mm layer, 2 walls, 15% infill
satisfying
0
Reply
@metalord1
Print Profile
0.2mm layer, 2 walls, 15% infill
It's relaxing but comes off easily
Show original
0
Reply
@user_973460371
Print Profile
0.2mm layer, 2 walls, 15% infill
Fun demonstration of the principle. Everything printed very well. Will probably try making some improvements to the sliding mechanism to keep the center piece from lifting off the bosses.
0
Reply
@user_3630738855
Boosted
Print Profile
0.2mm layer, 2 walls, 15% infill
works good
0
Reply
@HarpsNotHerpes
Print Profile
0.2mm layer, 2 walls, 15% infill
0
Reply
@Bowenmakesstuff
Boosted
Print Profile
0.2mm layer, 2 walls, 15% infill
0
Reply

License

This user content is licensed under a Standard Digital File License.

You shall not share, sub-license, sell, rent, host, transfer, or distribute in any way the digital or 3D printed versions of this object, nor any other derivative work of this object in its digital or physical format (including - but not limited to - remixes of this object, and hosting on other digital platforms). The objects may not be used without permission in any way whatsoever in which you charge money, or collect fees.

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