Relay Control OctoPrint Wanhao i3 3D printable model by Jeffeb3

Relay Control OctoPrint Wanhao i3

Source: Thingiverse by Jeffeb3

The Relay Control OctoPrint Wanhao i3 is a free printable 3D model from Thingiverse by Jeffeb3. Introduction ---------------- I have a Wanhao Duplicator i3, a raspberry pi 2 running octoprint (the octopi image), an LED light over the printer, and a 4 relay board from. You can download the STL file from the original listing below and print it at home.

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48 saves Source: Thingiverse Updated 2026-04-19

Tags: Relay, Control, OctoPrint, Wanhao, i3

About this model

Introduction ---------------- I have a Wanhao Duplicator i3, a raspberry pi 2 running octoprint (the octopi image), an LED light over the printer, and a 4 relay board from sainsmart. There are places with instructions, tips, etc. But I wanted to share how I did it with this specific printer, and I wanted to illustrate exactly how I managed to control the printer power, and the light, with some rudamentary automation. CAUTION ---------------- Duh, this is AC power. The printer can create a lot of juice, but it's nothing compared to the power coming from the walls. This can definitely kill you, so be cautious. If you don't know what you're doing, then stop. GPIO Scripts ---------------- octopi comes with the gpio stuff installed, so just running "gpio" on the command line gives me several op…

Frequently asked questions

Is this 3D model free to download?
Yes. Relay Control OctoPrint Wanhao i3 is free to download from Thingiverse. Click the "Download free STL" button 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 Jeffeb3.
Who made this model?
Designed by Jeffeb3, 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.

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