¶ Navigation
OAE Assembly Part 1: RA Gearbox
OAE Assembly Part 2: Base
OAE Assembly Part 3: DEC
OAE Assembly Part 4: AZ Base
OAE Assembly Part 5: ALT and Final Assembly
¶ OpenAstroExplorer Assembly Part 4: Azimuth Base
In this step:
¶ Step 36
- Assembly
- Parts
¶ Hardware
- 120 Arcaswiss Plate
- M5x25
- M5 Nut
¶ Step 37
- Assembly
- Parts
¶ Step 38
- Assembly
¶ Step 39
- Assembly
- Parts
¶ Step 40
- Assembly
- Parts
¶ Hardware
- Top half of 51111 bearing
- 5x60mm shaft
¶ Step 41
- Assembly
- Parts
¶ Hardware
- Bottom half and ball ring of 51111 bearing
- Assembly from Step 38
¶ Step 42
- Assembly
- Parts
¶ Step 43
- Assembly
- Parts
¶ Hardware
- 2x M5x20 flathead
¶ Step 44
- Assembly
- Parts
¶ Hardware
- M5x70 threaded rod
- M5 Nut
¶ Step 45
- Assembly
- Parts
¶ Step 46
- Assembly
- Parts
- Insert the DC barrel into the hole on the side of the base. Attach it with its nut.
- Attach the two connector cables. The short pin the barrel is positive/+/red, the longer pin is ground/-/black.
¶ Hardware
- DC barrel + Nut
- Spade connector cables
¶ Step 47
Take the 2 TMC2209 and clip off all pins on its top side with a sidecutter. You can also carefully try break them off with pliers.
¶ Step 48
Place the drivers. TMC2209 for RA and DEC, A4988 for ALT and AZ. Pay attention to the orientation, the TMC and A4988 have the potentiometer on different sides, so it looks like they are plugged the wrong way. This is how it must look like:
- Assembly
- Parts
- Place the PCB on the AZ base. Connect the power cables, into the terminal connector. The PCB has the polarity printed on it. Red goes in +, black goes in -.
- Close the terminal with a small screwdriver. Make sure there are no strands of wire sticking out.
- Line up the holes on the PCB with the inserts. Attach the PCB with a M3x8 on the rear hole, circled red.
¶ Hardware
- M3x8
¶ Step 49
Plug in the AZ stepper into the leftmost plug, labeled AZ. Briefly take the driver_lid and put it on. The cable has to go into the little channel. Make sure it fits once, then remove the lid again. This makes sure the cable is already in shape to assembly becomes easier at a later step.
Now is also a good time to plug in the ESP32, if you have already flashed it. It can also be plugged in at a later stage, but this way you can test the AZ mechanism already.
OAE Assembly Part 1: RA Gearbox
OAE Assembly Part 2: Base
OAE Assembly Part 3: DEC
OAE Assembly Part 4: AZ Base
OAE Assembly Part 5: ALT and Final Assembly
zum kopieren
- Assembly
- Parts