PRINTED at 50% scale. 0.2 mm No support. 100% completed. Great print result.
Photos both with and without without using a flash, so you don't get the translucent effect. Actually looks far better in real life, when compared to the photos.
DISCLAIMER This is all experimental. Not tested at full scale. Designing a wearable shoe is no easy feat. At present, this shoe is NOT wearable in my opinion. It needs more work. In short, it doesn't flex in the right places, especially the forefront of the shoe. You could try to fix this yourself by making the front section near the bend point thinner and also if you have a sophisticated slicer, lower or vary the infill in that front bend section of the shoe. As much as a remix, this is a learning exercise in how to make a wearable shoe. That is a work in progress and it could be a few more days, before I get time to look into this further.
My second remix of this shoe. Firstly thanks to the designer ( Ilias) for putting his solid model template design out there. I actually like this unconventional design, which lends itself to 3D printing.
- Remix Shoe without supports.
- Plug in shoe tongue
- Remix Shoe with custom supports, ( no need for you to add software generated supports )
I've added a clip in tongue flap and made the shoe stand taller. The tongue flap can easily be remade in TinkerCAD if you want to make adjustments. I've tested the tongue flap plug outside of the shoe and the fit was snug. i.e. difficult to unplug, so very secure. Either way, hope you like it.
This could be a very challenging print. Still working it out. Sometimes software generated supports can be a real pain. I think perhaps custom supports made at the CAD stage, might be the way to go. That said, I've added a second shoe copy with custom supports, so you can try printing that without any software generated supports. However, I strongly suggest print a scaled down version first. Perhaps quarter scale.
( QUICK UPDATE: scaling down too much will break the supports, as they will be too thin to be detected by the slicer - Might have to redo supports for a scaled down model, but I'm going to try to print the 25% scale model with no supports, as it's only going to take about 35 minutes of print time. ) OK this printed fine with no supports at 0.2 mm layer height.. Will scale up to 50% and try printing again with no support.
WARNING: I would NOT print this at 0.3 mm or higher. NOT without supports anyway. That resolution produced a poor result at 25% scale. I suggest print at 0.2 mm or finer. This makes sense, as the weight of the extruded filament is less and thus the gravitational physics is such, that its less likely to buckle with unsupported overhangs, as the finer filament will have more graduated overhang steps and also set and firm more quickly due to its lower thermal mass, relative to the ambient temperature.
If you have a very tall printer printing vertically could minimize support, however you might have some print strength issues afterwards due to the vertical layering, when the shoe is placed and used at a perpendicular angle to the layer angle and force applied during walking.
UPDATE: Having successfully printed this model at a normal shoe angle, I would not print this vertically. The normal lower profile shoe orientation should offer far better stability during printing, especially with flexible filament. i.e. more material stuck to the print bed and lower centre of gravity of the model, so much less swaying of the model, that could potentially reduce bonding during sudden print head directional movements.
Supports with TPU can be a bit tricky. I might make some manual custom supports that you cut away with sharp scissors. I think the next task for me or even you, is to reduce the size of the model to test custom supports and get that right before printing a full scale shoe. Having said all this, I'm starting to think this model could print OK at full scale, with no supports at 0.2 mm layer height or finer.
Approx shoe size 9.5. You can easily re-scale it to fit your feet. I don't have a big enough printer to print it, so if anyone gets a chance to print it, I would love to see it. I suggest a flexible filament like TPU 95a. Try perhaps 25% Infill ? Perhaps print a small one first, in order to get a feel for the design.
300 x 300 print bed required for the full size shoe. ( i.e. approx. 290mm in length )
This is the left shoe. To get the right shoe, simply mirror it in TinkerCAD or other CAD software or even slicer software if possible.
CONCLUSION ( So far )
I think this is a very printable shoe. If you have a high quality printer with multi material support, even better. I've printed this at 50% scale on a $300 single head printer and swapped the filament during the print, to get a multi coloured result. The material eSUN TPU 95A seems about just right for this project. Actually my first ever multi colour print effort. ( Two multi colour print tests with the first one failing and I learned a few things from that and tried again with success ) This is a cheap and nasty way to do multi colour, but better than nothing. NOTE: The printed result photo doesn't really do this print justice, as we know full well how much fine detail a mobile phone camera picks up. When you view the print directly with your own eyes, it actually looks quite OK at 0.2 mm layer height. Quite acceptable to me.
In terms of functionality as a shoe, I suspect much more work needs to be put into this aspect. The sole of the shoe lacks flexibility, so I will need to experiment with different thicknesses and infill. Overall still happy with the results so far.