I am planning to make time-lapse dolly, that will look somewhat like this: Dynamic Perception MX2 Dolly.
I will start by buying DollyShield DIY kit, that will attach to Arduino Uno Rev 3, to control camera and dolly.
The first question is about power: Dynamic Perception suggests to buy this Universal 110-220V AC to 12V DC Power Adapter to power the dolly, but are there any equivalents in RobotShop?
Second: Ar there any equivalents of this Portable 2700mAh Battery Pack? (I found this on ebay - how does it look?)
The third question is about motor: What kind of motor would you suggest for lifting up to two kilograms heavy equipment in horizontal motion?
Next, about mechanics.
I already have chosen Timing Belt and Timing Pulleys in different lengths and sizes, so I can experiment and modify the dolly. One more thing I need are some kind of wheels. So, are any wheels with ball bearings in RobotShop?
Thats it, for now.
More questions will probably follow.
If you lock the output shaft (i.e. “stall”), the motor will still be trying to spin the gears inside the gearbox.Your motor will burn and/or the gears will be stripped.
It depends on which motor you choose. Their power supply provides 12V at 5A. We offer a 12V 4A supply for almost half the price. However, if you use a motor which requires less current, you don’t need 4A, and alternatively if you use a larger motor, you’ll need a more powerful supply.
That looks fine. We also offer a 12V 2800mAh battery, wiring and charger. You might use the barrel jack and an on/off switch.
Is the motor actually lifting the 2Kg or simply moving it horizontally? Take a look at our drive motor sizing tool to get an idea of the torque and speed you’ll need.
Next, about mechanics. I already have chosen Timing Belt and Timing Pulleys in different lengths and sizes, so I can experiment and modify the dolly. One more thing I need are some kind of wheels. So, are any wheels with ball bearings in RobotShop?
You might consider casters (we offer a variety) or a roller. You can always insert a bearing into a wheel as well. If the track is large, consider a normal caster wheel with bearing purchased from a local hardware store.
Thank you for your answers Cbenson.
I have chosen this 6-12V, 15RPM 200:1 Spur Gear Motor. But I have one question about it.
What does “Gear train damage can occur if stalled (locked)” mean?
