Upgrading the Tevo Tarantula 3D printer (In progress...)

Introduction

The Waag fablab has 4 functionnal 3D printer and a Tevo Tarantula. Unfortunately the printer suffer from an unknown desease and need assistance. I’m helping Michelle to make the Tevo great again. This post will complete her documentation available (here)[http://make.waaglabs.nl/fablab/interns/2019/michelle-vossen/fablab/2019/10/24/upgrading-a-tevo-tarantula.html]

Michelle as documented well the axis replacement so please check out her documentation page for more. I will focus on the new printhead and on the electronics and firmware stuff.

Bed leveling

With the new sliders for the bed, we decided to remove the tuning screw of the manual leveling feature. And we decided to replace this process by an autoleveling strategy, using a bed leveling sensor. This will lead more robustness and stability. The speed and the print quality may increase. But we have a major issue. Our bed-leveling sensor doesn’t detect the bed of the Tevo… It only detect metal. So we first tried to place an aluminium foil under the glass bed. It does the trick. The tevo finally detected the bed. Unfortunatly this leads to an other issue… The sensor detect the bed too low. and the nozzle may be to close to the bed. And we will bump into the glass bed before detecting… Which happened once and breake our printhead carriage…

A new head for the Tarantula

We decided to replace all the slider mecanism with fine sliders. But those change leads us to design a new printhead. We want the head to carry the hotend, two fan, and the bed leveling sensor.

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