For my upcoming project(no hints, but cardboard is a material) I need 2 12v dc motors to be run off the h-bridge in the store, which means the max motor amperage is 2.5Amps.
Size isn't big but the robot will be mid-sized. 5 pounds or so of torque per motor if possible.
If it could have a wheel that would be awesome!
Anyone who can link me to some motors will be put on the credits list for the future bot.
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Troy, I like the site but I priced the stuff needed and it's almost $100.
Any other sources are appreciated.
Will it work? I plan to pwm it down if I get 2. Has enough torque. 2 motors =9 pounds of torque. Plenty!
You might look at this one.
What does everyone think of this motor and wheel?
(edit our last two messages crossed)
This one might be in your speed range.
The circumference is the distance traveled per revolution.
Divide your revolutions per minute by 60 to get turns per second.
Say for instance you have a 3" wheel and a geared motor going 120 rpm.
120/60 is 2. The circumference is 9.42. So 2 revolutions of 9.42 is 18.82" per second. Kinda zippy.
Granted that the rpm rating is when not under load but you can get a better picture of how fast it may go.
Just my opinion.
Edit. I just looked at the link you had. I didnt realize the speed was already in there with the wheel size. Unless Im missing something Im coming up with over 32K mm per second.
68mm tire size X 3.14 X 152 rpm = 32455mm per sec or 1277.7559 inches per sec or 106.48 feet per sec. Im a bit tired it seems.
EDIT: I slipped up and didnt realize I forgot the answer was per minute not per sec.
Got my ping sensors from china last night and inspected them. Some for roli mega, the others for my next bot.(trying hard not to spoil the surprise!)
Product Name: Mini DC Tyre Motor Assembly; Motor Model: 37GARH; Voltage:12VDC; Rated current: 1.1A;
Motor No load speed: 200r/min; Motor rated speed: 152r/min; Motor rated torque: 2.8kg.cm; Tyre: 68*27mm(D*T);
Shaft:Dia 37mm Long; Motor Speed: 65*3.14*152mm/s; driving force: 2.8÷3.25kg
Total Size: 65*104mm(D*H); Material: Metal, rubber; Color: As picture shows;
Weight: g; Package Content: 1 X DC Gear Motor + 1 X coupling + 1 X stand + 1X tire;"