I Tried running in 3D printed shoes

About this video

NetworkChuck reviews the Bambu Lab H2D printer Bambu sent him for a sponsored video and tests whether he can run five miles in 3D-printed shoes. He walks through the machine’s dual-nozzle printing, multi-material AMS filament feeding, and add-on modules: a laser module (10W and 40W versions he mentions) for engraving a logo in wood and a dog tag for his pug Mochi and for cutting, plus a cutting module for vinyl and leather and a pen attachment. The shoe project uses soft, flexible TPU filament, contrasted with rigid PLA. TPU cannot go through the regular AMS, so his team feeds it manually through a bypass, lowers a nozzle that was bubbling the filament to 215 degrees Celsius, raises the spool so it feeds straight down, and — after a failed print traced to skipped documentation — dries the TPU using the printer’s heated chamber before reprinting successfully. The shoes come out the wrong size, patched with cork soles, and the run is miserable: heat, a trapped rock, blisters and sore knees, though the shoes themselves do not fall apart. He frames it as a proof of concept, not a viable running shoe, and speculates about future uses such as prosthetics.

Key takeaways

• TPU is soft and flexible unlike rigid PLA, but it must be fed manually rather than through the standard AMS and is sensitive to nozzle temperature.
• A bubbling TPU print was fixed by lowering the nozzle to 215 degrees Celsius and feeding the spool straight into the extruder from above.
• Drying TPU in the printer’s heated chamber was the documented step whose omission caused a long print to fail.
• Dual nozzles plus separate filament feeds enable faster multi-material prints, such as his two-colour PETG print.
• The finished TPU shoes survived five miles structurally but fit badly and injured his feet, so he presents them as proof of concept only.

Episode details: published February 6, 2026 · 14:34 long. Summary written by Self Growth Videos from the episode itself. Business results and any income figures mentioned are NetworkChuck’s own claims, shared for education — they are not typical or guaranteed.

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