Is this 3D model free to download?

Yes, Heater Box for PTC element is free to download from Thingiverse. Open it in the free Thinger app, or use the "Download from Thingiverse" link to open the original listing by the creator.

Where do I download the STL file?

The download is hosted by Thingiverse. Use the "Download from Thingiverse" link on this page to open the original listing and grab the file, or save it to your print queue in the free Thinger app.

Designed by ntdesign, published on Thingiverse. Please credit the creator when sharing your print.

Can I print this at home?

Yes. This is a printable 3D model intended for home FDM and resin printers. Check the original listing for suggested print settings.

Heater Box for PTC element 3D printable model by ntdesign

Heater Box for PTC element

Source: Thingiverse by ntdesign

The Heater Box for PTC element is a free printable 3D model from Thingiverse by ntdesign. Simple box with lid sized for a 77mm x 62mm x 6mm aluminum PTC heater element (e.g. You can download the STL file from the original listing below and print it at home.

Open in Thinger (free) Download from Thingiverse

30 saves Source: Thingiverse Updated 2026-10-17 License: CC-BY · commercial OK Category: Tools & Workshop

Tags: heater, mold

About this model

Simple box with lid sized for a 77mm x 62mm x 6mm aluminum PTC heater element (e.g. Since I needed to go above 60°C, I cast mine from concrete (and printed the strain relief with XT). Files for the mold are included (I only needed one so I printed it from PLA as a single use mold). If you want to use the cable guide, you need to put a 40x20x10mm spacer into the inner part of the mold (I used a block of Teflon). M3 nuts, M3 screws and small zipties are needed for the strain relief. Drill a 3mm hole through the base to attach the relief to the box with an M3 screw. I designed two vial holders for this:

Frequently asked questions

Is this 3D model free to download?: Yes. Heater Box for PTC element is free to download from Thingiverse. Open it in the free Thinger app, or use the "Download from Thingiverse" link above to open the original listing.
Where is the STL hosted?: The download is hosted by Thingiverse, not by Thinger. We link you directly to the original listing by ntdesign.
Who made this model?: Designed by ntdesign, published on Thingiverse. Please credit the creator when sharing your print online.
Can I print this at home?: Yes. This model is intended for home FDM and resin 3D printers. Check the original listing for suggested print settings like layer height and supports.