topic Re: Trying to combine custom insole into a custom shoe insole in Fusion Support Forum

Trying to combine custom insole into a custom shoe insole

rgonzalezgrza — Wed, 30 Oct 2024 18:44:44 GMT

Hello, I'm working on a project in which I want to create a shoe with a custom insole from a 3D scanned foot. I have the 2 bodies (insole and shoe sole) but I cant seem to be able to cut the base shoe sole so that it takes the shape of the custom insole. I don't know if I'm using the commands wrong or if they're not the correct ones to begin with. Any help would be greatly appreciated.

The shoe sole in the images is not the final version and has exaggerated thickness/dimensions, its just an extruded shape so I can figure out how to merge/carve the insole into the sole's surface.

Re: Trying to combine custom insole into a custom shoe insole

hfcandrew — Wed, 30 Oct 2024 20:06:59 GMT

Pedorthist here. I do this everyday using Meshmixer. Can do either a 'boolean difference' or 'attract to target'. Takes like 5 mins.

If you send me an .stl of both your shoe and your model I'll narrate a sample video for you.

Re: Trying to combine custom insole into a custom shoe insole

rgonzalezgrza — Wed, 30 Oct 2024 22:21:11 GMT

Thank you! Attached are both the insole and the "sole" form. LMK if you require anything else.

Re: Trying to combine custom insole into a custom shoe insole

franky_egan — Thu, 31 Oct 2024 10:15:24 GMT

You could *temporarily* patch teh open end of the liner, then slice or merge (subtract + keep tools) both parts.

this would give you a cut out of the liner from the larger sole.

Re: Trying to combine custom insole into a custom shoe insole

hfcandrew — Thu, 31 Oct 2024 15:28:26 GMT

Your foot scan quality is quite poor and rather wavy. How did you make it? Do you have the original unaltered scan?

Also your alignment and positioning on your supplied models are not really correct. Your insole portion needs a lot of prep work and smoothing. Also your footbed model is way too shallow.

With that being said I could show you how to make it sorta work given what you supplied. But I would not recommend this for any of my patients,

Are you a shoe maker or clinician? Or is this just a home DYI project?

Re: Trying to combine custom insole into a custom shoe insole

rgonzalezgrza — Thu, 31 Oct 2024 16:34:00 GMT

I feared that. Im neither a physician nor clinician, this is just a DIY project and although I have an engineering background and some 3D scanning/modeling experience alongside fusion (reverse engineering), this is clearly my first time working with insoles. I followed a tutorial where they did the insole from a foot scan through mesh section sketches and did it with the foot scan I have in the picture below. Attached is also the original foot scan (spoiler: its not even close to high quality).

I also made the insole on a third party website (GensoleApp) but like my original problem, haven't managed to fuse it/turn it into a shoe.

I would absolutely appreciate any knowledge you could share since I started to like this type of project.

Re: Trying to combine custom insole into a custom shoe insole

hfcandrew — Sat, 02 Nov 2024 20:28:04 GMT

See below for the video.

(view in My Videos)

Also fyi its much easier to fabricate a custom insole than a whole custom shoe. You can buy orthotic 'friendly' brands with removable insoles like Cambrian, Naot, Finn Comfort, etc. And replace the stock insole with your custom one.

And see attached for this projects .mix, I included a copy in the .mix of the Sandal template.

Re: Trying to combine custom insole into a custom shoe insole

franky_egan — Sun, 03 Nov 2024 12:07:58 GMT

This is so interesting, can I ask what then is the manufacture process, 3d print?
What material would you use, a tpu or foaming filament?

Re: Trying to combine custom insole into a custom shoe insole

rgonzalezgrza — Sun, 03 Nov 2024 20:41:51 GMT

WOW! Andrew thank you for the answer and video, it really helped me understand and see that I have much to learn regarding 3D scans.

Again thank you so much for your help!

Re: Trying to combine custom insole into a custom shoe insole

rgonzalezgrza — Sun, 03 Nov 2024 20:43:56 GMT

Don't know if your question is directed at me, but I plan to experiment by 3D printing TPU 95A, although I believe it might be a little too hard. Will try to get close to a croc shoe in terms of hardness.

Re: Trying to combine custom insole into a custom shoe insole

hfcandrew — Mon, 04 Nov 2024 20:35:26 GMT

I made a similar post about my manufacturing workflow: https://forums.autodesk.com/t5/fusion-deutsch/fusion-support-hilfe-bei-arbeitsprozessoptimierung-benotigt/m-p/12758411#M42667

From here you can mill out of cork stock or just 3D print using a TPU or TPU-like material.