in 3D Printing Design held by gary99
Contest Ended, Winner(s) have been selected.
Design two symmetrical Rhombicuboctahedrons (Rohm' for short) for printing on Prusa 3D MK2.
The 1st Rhom' needs to be made of 2 parts that can be connected to form the complete shape.
The width of the Rhom' should be 100nn from face to face.
Each edge of this Rhom' needs to have a 5mm high 'fence' sticking outward.
Two inner benches or plates need to be constructed in the inner space of each of the halves.
The 2nd Rhom' is also made of 2 parts but without fences and without benches. It is a simple Rhom'. It needs to fit exactly on the 1st Rhom' from the outside. so that the 1st Rohm' go inside the second one.
The attached jpg and max files depict the 1st Rhom'. However the max file is full of mistakes and should not be used as anything but as a general reference. Nor the 'fences' need to be constructed as V shape as in the max files.
Please ask me anything which is not clear.
The resulting gcode file must be designed and tuned for Prusa 3D MK2 including proper support etc, and needs to print without problems on Prusa MK2.
Don't Wants:
3D file that does not print well on Prusa
  1. 3D Studio or solid and simplify 3D.


1st Winner
#22 Final changes by handsketcher
All the changes are added. STL file names may need to be changed when you import them to printing software. I used thickness value in the file name like "0.9mm". The dot in the file names may not accept by some softwares.
If all these are acceptable then I'll upload solidworks files in another submission.
Mar 21, 2017 22:44
#9 New Outer Rhom- Updated by GKG
Have the updated 3d design ready for printing now.

Mar 14, 2017 9:56
#12 Two Rhombicuboctahedra by Adam B.
Two rhombicuboctahedra where one can neatly insert within another. The assembly model is named Rhombicuboctahedron.
Mar 14, 2017 22:11
#6 3d-Printing STL files and G-Code with proper supports designed by GKG
This model is the 3d -printing version of my design. I have considered the support structures, G-Code, optimized for 3d printing on PRUSA printer.
Mar 14, 2017 6:52
#5 Rhombicuboctahedron by GG Designs by GKG
Hello gar996756,
This model is accurate for 3d printing straight after download.
Wall thickness maintained as per requirements.
5mm Fence also prints well with no problems.
Bench is designed inside both halves and also a non-bench version is included if required.
Rom1 fits exactly inside Rom2
Rom upper and lower halfs have lips(grooves at the edge) for easy and tight fixing both into one piece.
Model is 3d printing ready. Let me know if you need more customization.
Mar 14, 2017 4:46
#16 Complete Rohm design by MAINAK MITRA
Rohm design ready to 3d print in prusa 3D MK2. Please give feedback.
Mar 15, 2017 23:44
#8 Rohm Design by Mahbub
Edge removed from 2nd Rohm. Thanks
Mar 14, 2017 8:57
#7 Rohm Design by Mahbub
Please check the attached images for details. I have the Prusa i3 MK2 3d printer and I know the best solution for this project. Thanks
Mar 14, 2017 8:44
You have STL files of both top and bottom attached. The parts have a 2mm wall thickness and per your dimensions.
Neither of these two parts should require supports to print. I'm not real clear on the "fence" profile that is wanted.
Mar 13, 2017 23:45
#10 Rhombicuboctahedron updated by Ivan Zerpa
Now obj file included
Thickness: 2 mm
width of the Rhom 1 = 100 mm from face to face.
Rhom 1 fences = 5 mm high
See the file that is compressed WinRar
I am always at your disposal , to help you.
my best regards
Ivan Zerpa
Mar 14, 2017 13:48
#4 External and internal Rhombicuboctahedron by Ivan Zerpa
Ready to print
Internal and external piece 2mm thick
IGES and STEP neutral files
Files to print STL
I'm here to help you.
my best regards
Mar 14, 2017 2:58
#3 Rhombicuboctahedron by Ivan Zerpa
Working. 3d model with the measurements you need
Please give me your feedback.
Mar 14, 2017 1:55
#11 ROHM 1ST VERSION by Adam
Mar 14, 2017 15:56




Mon, 27 Mar 2017 22:27:00 +0000
@Gary, Thank you..
Sun, 26 Mar 2017 16:25:32 +0000
looser adam.....afraid of others design which he can not see...lol



Thu, 23 Mar 2017 03:10:14 +0000
People that don't show their design typically are copying someone elses.

Similar Contests on Cad Crowd

Ring design with branches and bramble
We are looking for a ring that will eventually be printed in sterling, featuring bare branches. Ring band needs to resemble a branch (or branches), and the top of the ring needs branches wrapping about it. Inside this ring we'll be adding an element later, so we need a pocket underneath the branches that will fit an item that is approx 5mmx20mm. The design sketch shows a bit of a lip to the pocket from the side view, this will help keep the item in place. Once the design is approved, we'll need it in US sizes 5-13.
Robotic Enclosure
Hello, I have attached a blender file that has two objects in the file. The intention of this project is to create an enclosure for a robot. The circular object is the base which will go on top of the robot, the chassis is this (mm), I believe i have already adjusted the initial enclosure to fit on top of the chassis but please verify. http://image.dfrobot.com/image/data/DFR0310/Upper%20plate%20V1_Layerout.pdf I would like the chute object to be mounted on top of the enclosure, where a marble will sit in the chute and when the robot spins, the marble will slide down the chute.
look for someone to setup a 3d file from png file we are Official MOD Approved Merchandise with over 3000 badge we are an DTG pprinter company but we going into 3d printing and need files for this side of the work please find a copy of one of the badge
Clear Plastic Case
I am looking for a round clear plastic case design to be 3D printed for a prototype. This is very generic. The case should be 4.5 inches in diameter, round tapered off around the edge, and approximately 1 inch thick at the center, tapering off to about .25 inches until edges connect. The front and back should be of equal dimensions and attached by plastic and opens and closes, and snaps closed. The back should be black plasting, and the front should be clear plastic. This case would be very similar to something like a round eyelash case holder, or something that might hold ear buds.
3D Printing Design | Meet the minimum thinkness on two small parts of my 3D STL file for Shapeways!
I need someone to make a certain part of my 3D anchor stl file a little thicker. Nothing complicated at all! The guy that was working on this file is really swamped with work and cannot complete this edit. This job should literally take less than 30 minutes if you know what you are doing. On the attached picture it shows that I need to make specific parts of the anchor a little thicker to meet the minimum supported wire thickness of .8mm. Here's what the email I recieved from shapeways said: "Here is why we cannot print your model: The minimum thickness for free/supporting wires > 1.0mm and supported wires > 0.8mm for this material. Please thicken the wires of the model." I have specified what needs to be done on the picture attached. Please message me if you need clarification. If you know what you are doing and have worked with stl. files and understand the thickness minimum that shapeways requires for 3d printing then this should be a no-brainer.