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Dual Axis prototype installed

A project log for Sunchronizer - Single or Dual Axis Solar Tracker

3D printable ESPHome based 400W Single or Dual Axis Solar Tracker

fabianFabian 10/12/2024 at 19:190 Comments

Today I installed the current prototype of the dual axis system. It's absed on the single axis version which is mounted on a kind of turret. 

The possible rotation angle is about 205°. This range is limited by two endstop switches and for the worst case there is also a mechanical block. 

The current azimuth angle is measured via a compass module on the controller PCB.

I will show some more details on the following pictures.

The Dual Axis version is basically the elevation (single) axis version extended by a turret. I used Prusament PETG for all 3D printed parts
On this picture you can see the initial version of the two endstops to limit the rotation angle. If one of these endstops is triggered the movement of the rotation axis is stopped. Unfortunately these endstops were not stable enough. Therefore I switched to bigger endstops.
This was the test stage of the electronics PCB. Initially I tested all the connections with clamp connectors. Later I replaced them by properly soldered connections. The PCB is mounted splash waterproof in the 3D printed housing. The lid is made of a lasercut acrylic glas part.
View on the snail gear that is responsible for the azimuth angle control.

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