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jamesglanville

Marble pyramid holder

by jamesglanville Feb 6, 2012
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Hi, can you make a version for 16.5mm marbles, and 4 marbles on each edge? I don't really understand the math used to create this down below in the comments. :D

Hi, I updated the scad file to be parametric.

Defaults:

distance=17
this is marble size + a bit, you'll have to experiment

numberofmarbles=4
self-explanatory

fudgefactor=0.5
This aligns the triangle and the holes. Just change it until it looks right.

James

Unknown module "triangle_prism"

You should enable Customizer!

Comments deleted.

oops wrong THing.

Would be a shame if someone.... BUMPED THE TABLE!!!

Good Make, I do have a need to display 84 cheaply made marbles =)
Was planning on gluing each row together and then put a few different sizes in my fish tank.

Any chance of posting a DXF file of the top edge of all the circles.. so folks with a Laser can cut out of wood or acrylic? Thx

I don't know how to make a DXF file, but here's how I made this one:

measure dia of marble, add a tiny bit (16mm vs 15.6 for me)
triangle centered on origin, make bigger manually to fit holes.
Hole in center.
holes at 16mm center to center either side, then multiples thereof.
for each row above/below, go up/down by dia0.5sqrt(3), and left right by dia/2
tada

Gives me a great idea for some old Pinballs I have laying around. :)