Well basically I did a little research on DIY dollies because I didn’t want to spend $800 on one of these. After watching multiple videos on Youtube and Vimeo I came up with this design.
All the electronics are on the aluminum platform and is controlled by the POT. I can control the speed and direction of the motor by the controls on the box. On each end of the aluminum platform I installed a micro switch to shut down the motor when the platform reaches either end preventing damage to the motor. Once the motor has stopped I flip the switch to "Bypass" which bypasses the micro swtich allowing me to switch directions.
The allen wrench you see is used to loosen the belt clamp on each end and move the platform to anywhere on the rail. I use this to switch sides depending on how the camera is positioned.
I should have a couple more videos shortly. Still looking to do some star shots. All weekend in the desert it was too cloudy.
Parts list:
McMaster Carr
3/8" 6061 Aluminum plate
7 ah 12v battery
Battery charger
6 ft DryLin double rail slider w/carriage
SDP/SI
5mm drive belt
5mm 14 tooth timing belt pully
Timing Belts (open Ended clamp)
OSH
Miniature bearings
2 washers
Through bolts to secure bearings
DC Motor Speed Controller w/ reversing switch
ServoCity
.45 offset gear motor
Mouser
4 DC power jacks
4 DC power plugs
2 micro switches
DPST On-On switch for bypassing the micro switches.
Enclosure for electronics
and of coarse the intervalometer.
My first real test so go easy on me.
All the electronics are on the aluminum platform and is controlled by the POT. I can control the speed and direction of the motor by the controls on the box. On each end of the aluminum platform I installed a micro switch to shut down the motor when the platform reaches either end preventing damage to the motor. Once the motor has stopped I flip the switch to "Bypass" which bypasses the micro swtich allowing me to switch directions.
The allen wrench you see is used to loosen the belt clamp on each end and move the platform to anywhere on the rail. I use this to switch sides depending on how the camera is positioned.
I should have a couple more videos shortly. Still looking to do some star shots. All weekend in the desert it was too cloudy.
Parts list:
McMaster Carr
3/8" 6061 Aluminum plate
7 ah 12v battery
Battery charger
6 ft DryLin double rail slider w/carriage
SDP/SI
5mm drive belt
5mm 14 tooth timing belt pully
Timing Belts (open Ended clamp)
OSH
Miniature bearings
2 washers
Through bolts to secure bearings
DC Motor Speed Controller w/ reversing switch
ServoCity
.45 offset gear motor
Mouser
4 DC power jacks
4 DC power plugs
2 micro switches
DPST On-On switch for bypassing the micro switches.
Enclosure for electronics
and of coarse the intervalometer.
My first real test so go easy on me.
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