Introduction
Notes:
*Some of the pictures in this guide are from previous versions of the rotator.
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In this step we are constructing the frame.
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You will need 4x T slot 20x20 L160, 9x T slot 20x20 L102, 20x Hidden corner connection slot 6.
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Start by assembling using a 2mm Allen key.
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You should now have a complete frame.
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Make sure you dont fasten the holding connectors for the extra L102 beam on one side.
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Beware of the orientation (short side vs long side) of the hidden corners!
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For this step you will need:
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3D printed: Axis side with homing sensor (older version shown in the picture), Axis side, 2x Ball bearing housing
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8x M4-20 screws, 8x M4 nuts
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2x Ball Bearing 6008ZZ
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Insert the 8 nuts in the pockets of the axis sides.
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Attach the ball bearing housings on the back of each axis side and fasten it with M4-20 screws as shown.
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In this step you will need:
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1x side assembly (the one without the homing sensor holder)
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4x M4 slot 6 nuts, 4x M4-10 bolts
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Screw the M4-10 bolts through the side assembly as shown on the second picture and attach the M4 slot 6 nuts
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Finally slide the whole piece inside the frame as shown (bottom side touching the frame) and secure it by screwing the 4 M4-10 bolts.
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In this step you will need:
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3D Printed: Worm gear
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Thread lock glue
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2x M5 nut, 1x M5 washer (wrong in the picture), 90mm M5 threaded rod
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Apply glue as shown.
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Follow the diagram for the dimensions.
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In this step you will need:
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The previous worm gear assembly.
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3D Printed: Worm mount
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2 ball bearings 625ZZ
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4x M4 nut slot 6, 4x M4-10 screws, 2x M4 washer.
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Insert the ball bearings inside the pockets of the mounts. Then screw the bolts into the nuts slot6 as shown in the pic.
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Finally slide the worm mounts in the slot 6 rails as shown. First the one without the gear assembly first, then the second with the gear assembly as shown.
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Don't forget the washers between the ball bearings and the worm gear assembly.
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In this step you will need:
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The second axis side assembly (the one with the homing sensor holder)
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2x M4 slot6 nuts, 2x M4-10 bolts
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2x M4 slot6 nuts, 2x M4-20 bolts
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The motor mount.
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Attach the bolts, slot 6 nuts and the stepper motor mount.
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Finally attach the whole assembly to the frame as shown in the picture.
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In this step you will need:
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3D printed: Axis spacer collar
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3x M3 nut, 3x M3-10 set screws
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Insert the nuts in the pockets of 3d printed part, then screw the set screws as shown.
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In this step you will need:
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4x M3-6 and 4x M3 washers
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NEMA 17 stepper motor
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GT2 pulley 20 T 5mm bore and GT2 pulley 36 T 5mm bore (not shown on the first picture)
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Pass the small pulley through the stepper motor shaft and the larger through the worm shaft.
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Place the motor under the mount and tighten the screws.
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In this step you will need:
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3x M3 nuts
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4x M3-6 Head cap screws
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3x M3-12 Head cap screws
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3D printed part motor_mount_flange
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GT2 pulley 20 T 6mm bore and GT2 pulley 36 T 5mm bore (not shown on the pics)
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Bolt the motor on the flange
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Insert the small pulley over the motor shaft and the larger through the worm shaft. Bolt the flange, with the motor, on the motor base.
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In this step you will need:
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1x M3 nut
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1x M3-6 Head cap screw
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1x M2-6 Thread-Forming Screw
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SatNOGS encoder board
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1x D6x2.5 Neodymium Diametric Magnet
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And 3D printed parts: M3_TSlot20_nut, encoder_holder
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Place the nut into the 3D printed part and slide it into the aluminum profile
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Slide The pcb into the 3D printed part and use the M2 screw to gently hold it in place
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Using some cyanoacrylate glue, fix the magnet over the center of the pulley that is over the worm gear
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Bolt and align the encoder over the magnet using the M3 screw
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Cancel: I did not complete this guide.
One other person completed this guide.
15 Comments
I made a list of parts that doesn't include the 3d printed stuff. Could someone look over it to make sure i'm not missing something?
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T connectors 3
M5-20 screws 8
M5 nuts 10
Ball bearing 6007ZZ 2
M5 slot 6 nuts 4
m5-10 bolts 4
thread lock glue
m5 washer 2
90mm M5 threaded rod
625zz ball bearing 2
m5-10 washer 2
m5 nut slot 6 4
m5-10 bolts 4
M3 nut 4
m3-12 bolt 1
m3 washer
m3-10 set screws 3
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Also the guide could be more clear. The v2 guide is much better.
Hey,
We have not finished yet.
@houston chapman, you can check the BOM (https://github.com/satnogs/satnogs-rotat...)
Stay tuned!!
Good to know. I thought this was it.
Thanks!
Azisi, could you please post the link where you found the D6x2.5 Neodymium Diametric Magnet. I'm having trouble finding them online.
Thanks,
Tyler