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GOTO Mount for Bresser EQ3

Print Profile(1)

All
P1S
A1
X1
A1 mini
P1P
X1 Carbon
H2D
X1E
H2D Pro
H2S
P2S
H2C
X2D
A2L

0.2mm layer, 5 walls, 15% infill
0.2mm layer, 5 walls, 15% infill
Designer
11.6 h
2 plates

Open in Bambu Studio
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31
5
Released 

Description

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For the conversion of my Bresser EQ3 mount to a GOTO system, I used self-printed components. This involved GT2 timing belts with 16 and 40 teeth to ensure precise power transmission. The overall gear ratio is 325 in the RA axis and 162.5 in the Dec axis. The system is controlled via OnStep, enabling automated and precise tracking.

 

Components:

   2x GT2 Timing Pulleys 16T
   2x GT2 Timing Pulleys 40T 
   2x GT2 Closed Loop Timing Belt 200mm
   2x Nema 17 Stepper Motors

   1x ESP32 NodeMCU D1 R32 WiFi Module

   1x CNC Shield V3 Development Board

   2x BIGTREETECH TMC2209 V1.3 Stepper Motor Drivers

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