Heroic Voxels Update #4
As of today, you have exactly seven days left to submit your final entry! So let's review some contest details to make sure you're ready:
How to prepare your final entry
When you're all done, please remember to tag your work with #heroicvoxels so we'll include it in our judging process (only posting the WIP thread is not enough!).
The official submission deadline is Wednesday, February 24, mignight, New York time (so that's Wednesday included, just to be clear).
Tutorial: Preparing your work for 3D Printing with 3D Hubs
The winners will all receive a full color 3D print of their entry, provided by our partner 3D Hubs. Of course, 3D prints have some specific design constraints and that's why they have provided the following mini-tutorial for us. Feel free to post your questions below!
For printing voxel based models, I would highly recommend full color printing. The great thing about full color printing using sandstone is that no supports are required, so you have a lot more design freedom. The simplest way to get it printed in full color would be to upload your OBJ with texture file attached and select full color sandstone as a material on 3D Hubs. It’s hard to give a cost estimation without the model, but prices for full sandstone range from ~$1-$2 per cm3.
As for design constraints with full color printing, you will want a minimum wall thickness between 2-3 mm.
Also keep in mind that full color sandstone prints are for aesthetic purposes only, they are not that strong.
Printing a voxel based model on a standard desktop printer like a Makerbot is definitely possible. For printing, the voxel needs to be a solid body and not separate pieces or free floating pieces in space. Voxels connected only by one edge would not print, they should be connected by a face. Due to the nature of voxel design you will more than likely have to deal with support material due to overhangs. You can see an example of overhangs below:
It’s not a huge issue, but just be aware that there may be some drooping even with supports. You can then paint your model or leave it as is
For both of these printing recommendations, you can save printing time and cost by hollowing or shelling the model. The easiest way to do this is with Meshmixer. We have a great tutorial on how to do that here, its very straightforward. Meshmixer has a great built in Hollow feature.
Those are just a couple quick tips on getting your model printed! If you have any questions feel free to ask and I’ll see how I can help.
Best of luck with the last bits of work, we're all very excited to see your entries here