Custom insoles for metatarsalgia.
Forefoot cushioning, shaped to you.
Ergono3D lets you design insoles with the forefoot cushioning, heel cradle, and firmness you want, then export a print-ready STL fitted to your own foot. Many people with metatarsalgia look for more cushioning under the ball of the foot. It is a design tool, not a medical treatment — see a clinician for persistent pain.
Shape your forefoot cushioning without CAD.
Instead of pushing vertices around in CAD, you answer a guided survey and adjust the support that shapes the final insole — the forefoot cushioning, the heel cradle, and the firmness. That keeps it easy to refine after you've actually worn them.
Forefoot cushioning where you actually need it.
Metatarsalgia is pain and inflammation in the ball of the foot, around the metatarsal heads (Mayo Clinic, Cleveland Clinic). Store-bought insoles spread one fixed cushioning layer and one firmness across every foot. A design you control puts the padding under the ball of the foot where you want it — built from your foot profile, and a file you can adjust rather than a pair you replace.
A fixed insole spreads the same cushioning across the whole footbed, so the ball of the foot gets whatever padding happens to sit there.
Set how much padding sits under the forefoot, plus the heel cradle and firmness, from a guided survey — then export an STL fitted to your own foot rather than an average.
Off-the-shelf means trying a different product each time the forefoot padding feels too thin or too bulky.
Adjust the forefoot cushioning and firmness, export the next version, and print at home or via a service.
Forefoot comfort is personal.
There is no universal right amount of forefoot cushioning. It is the padding under the ball of the foot that spreads load, and how much feels comfortable for standing and walking varies from person to person; an insole is not a cure. This isn't medical advice — see a podiatrist or clinician — for foot pain, especially pain that persists.
From your foot to a wearable insole.
Ergono3D keeps it practical: design the file, print it in TPU, wear it, and tune the next version without rebuilding anything by hand.
Forefoot cushioning
Set the cushioning under the ball of the foot, plus the heel cradle, to match you, not a shelf size.
Softer or firmer
Choose the firmness and cushioning, then re-export to fine-tune after you've worn them.
Adjust and re-print
Wear it, learn from it, export the next version — it's a file you keep, not a final purchase.
Home or service
Print in TPU at home for a few dollars of filament, or send the STL to a print service.
Guided, not modeled
Answer a survey and tune controls — no scanner, no manual modeling step.
Print your design into a wearable insole.
Print the generated file, wear it in your everyday shoe, then refine the forefoot cushioning and firmness from how it actually feels.
Which TPU firmness for your insole.
Every design exports as TPU-ready geometry, but the firmness you print in changes how it feels underfoot. A softer TPU cushions for long standing and sensitive feet; a firmer TPU supports under load; a mid firmness is a balanced default. Comfort is personal, so many people print, feel, and adjust.
A nozzle made for flexible filament prints TPU more reliably, and a thin top cover can soften the contact surface. For firmness trade-offs, print temperatures, and top covers in depth, see the TPU hardness & top cover guide, or the DIY guide to 3D-printed insoles.
Forefoot cushioning & metatarsalgia — questions answered.
/ 01Do insoles help with metatarsalgia?
Many people with metatarsalgia look for more cushioning under the ball of the foot, and clinicians often discuss supportive footwear and insoles as part of everyday care. Comfort varies from person to person, and an insole is not a cure. This is not medical advice — see a podiatrist or clinician for diagnosis and for pain that persists. Ergono3D is a design tool that lets you shape the forefoot cushioning yourself and export a print-ready STL.
/ 02Are custom insoles better than store-bought for metatarsalgia?
Off-the-shelf insoles come in fixed sizes and a single firmness. A custom design is shaped to your own foot, so the forefoot cushioning, heel cradle, and firmness match you rather than an average. Whether that feels better is individual. With Ergono3D you can adjust the design and re-export rather than buying another pair to try.
/ 03Can I 3D-print my own insoles?
Yes. Ergono3D runs in your browser: you answer a guided survey, adjust parameters like forefoot cushioning, heel cup, and firmness, preview the geometry, and export a print-ready TPU STL. You can print at home on a Bambu, Prusa, or similar printer, or send the STL to a print service. See our DIY guide for the printing steps.
/ 04How much forefoot cushioning do I need?
There is no single right amount — comfort depends on your foot, your footwear, and how you feel walking and standing. Ergono3D lets you set the forefoot cushioning and firmness, then re-export a new version after wearing it, so you can iterate. A podiatrist or clinician can advise on what suits you.
/ 05How long do 3D-printed insoles last?
It depends on the TPU you use, your weight, and how much you wear them — typically months to over a year. This is not clinically validated. Because the design is a file you keep, you can re-print or adjust and re-export when a pair wears down.
Shape a custom insole and preview it free.
Answer the guided survey, tune the forefoot cushioning and firmness, and export a print-ready STL. The free preview includes the survey and 5 credits — no scanner, no CAD.
Custom insoles may be eligible for FSA/HSA reimbursement — check with your provider. Ergono3D is a design tool, not a treatment for metatarsalgia or any condition; this page isn't medical advice. For diagnosis or persistent pain, see a podiatrist or clinician.