Casmat
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Yesterday, 04:23 PMVery few DC motor controller can act as a servo controller. We know that some RoboteQ controllers have this feature. The other closed loop...2 replies | 29 view(s)
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05-22-2013, 05:32 PMWe are not sure to understand what you are trying to do: (1) are your trying to tigger a 433MHz control transmission with a timer, or (2) do you want...1 replies | 32 view(s)
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05-22-2013, 08:03 AMYou'd be better off with a different motor controller such as two single RB-Pol-170. There are a few others in the medium power category which can...1 replies | 24 view(s)
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05-22-2013, 08:00 AMAt this time we don't have a big selection of pulleys, though your best bet is likely pulley systems from sailboats (small, able to support heavier...1 replies | 48 view(s)
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05-21-2013, 02:46 PMCorrect. We have successfully created that exact setup without any issues. Can you check to see that there is nothing blocking or impeding the servos...5 replies | 72 view(s)
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05-21-2013, 09:45 AMCorrect. You can test this using hte Blink LED program. The microcontroller alone does not consume a lot of power, and the 6xLEDs are also low...4 replies | 66 view(s)
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05-21-2013, 09:43 AMCan you send an image of how you have the Rover built? The tracks should be a near perfect fit and not tight. It sounds like you may not have...5 replies | 72 view(s)
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05-21-2013, 08:13 AMThe Drive Motor Sizing Tool is exactly what you need. You're looking at something like the CIM motor plus gear down.1 replies | 68 view(s)
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05-21-2013, 08:11 AMThat's most certainly a power drain issue - the battery cannot discharge at a high enough current for that motion. The suggested battery is only a...5 replies | 72 view(s)
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05-21-2013, 08:08 AMIt depends on how discharged the battery is, but it can take about 5-6 hours. Sure. If the main power switch is on, then the...4 replies | 66 view(s)
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05-17-2013, 10:55 AMYou can certainly do that, though you need to be sure that if you are connecting the stepper motor directly to the Arduino, that the current is...1 replies | 70 view(s)
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05-15-2013, 12:04 PMCasmat replied to a thread How to control pan & tilt head with a 2-axis joystick & 2 knobs? in Communication & ControlWe cannot make the design for you unfortunately, however, you should be able to make the proper connections using the products documentations. The...8 replies | 246 view(s)
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05-14-2013, 06:44 PMCasmat replied to a thread Max continuous current handling for "Arduino Compatible Mega Motor Shield 13A, 5-28V" in Electronics & ElectricalAs explained on page 7 of the manual, only half of the current will be monitored: http://www.robotshop.com/content/PDF/user-manual-megamoto.pdf3 replies | 106 view(s)
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05-14-2013, 06:18 PMCbenson replied to a thread How to control pan & tilt head with a 2-axis joystick & 2 knobs? in Communication & ControlAdding two analog potentiometers (one associated with the joystick, the other associated with the knob), the voltage will be reduced as compared to...8 replies | 246 view(s)
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05-14-2013, 03:49 PMCasmat replied to a thread Max continuous current handling for "Arduino Compatible Mega Motor Shield 13A, 5-28V" in Electronics & ElectricalYou can indeed combine both H-bridge outputs on that controller and get the current you need for your application.3 replies | 106 view(s)
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05-14-2013, 09:48 AMCbenson replied to a thread How to control pan & tilt head with a 2-axis joystick & 2 knobs? in Communication & ControlThe setup they have is a bit custom, and there are two ways of doing it: 1) electrically (the knobs provide resistance which reduces the maximum...8 replies | 246 view(s)
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05-14-2013, 07:29 AMCbenson replied to a thread How to control pan & tilt head with a 2-axis joystick & 2 knobs? in Communication & ControlYou're on the right track. The motor controller you chose is more than enough for the two motors, and there is the option of analog control (so you...8 replies | 246 view(s)
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05-13-2013, 05:01 PMSabertooths are the norm when it comes to mobile robots. If you want something more rugged / industrial / versatile consider RoboteQ.5 replies | 127 view(s)
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05-13-2013, 03:12 PMYou could use ~60A fuses, and perhaps even a fuse between the battery and controller.5 replies | 127 view(s)
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05-13-2013, 11:01 AMIs there any way to figure out the continuous current used by each motor, as well as the stall current? The 2x60A is quite powerful, but it's best to...5 replies | 127 view(s)
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05-13-2013, 07:45 AMThe P60 has a 0.5" diameter output shaft, which is quite large. At this time we don't offer any hub + off-road wheel combinations for such a large...1 replies | 111 view(s)
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05-13-2013, 07:41 AMCbenson replied to a thread (RB-Ada-53) Adafruit 66 Channel MTK3339 GPS Breakout Board V3 in SensorsYes, RB-Ada-53 is the same as product 746 on the Adafruit website. The best way to confirm is at the bottom of the RobotShop website, you can see the...1 replies | 153 view(s)
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05-10-2013, 03:06 PMCbenson replied to a thread Motor controller for 24 volt wheelchair motors in Electronics & ElectricalRB-Dim-42 + 2x single end servo cables would be the same thing.5 replies | 225 view(s)
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05-10-2013, 10:14 AMCasmat replied to a thread Dagu 4WD Thumper / inaccuracy + question in Robot Kits and Development PlatformsThanks for catching the error. It is corrected now.3 replies | 230 view(s)
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05-10-2013, 09:11 AMCbenson replied to a thread Motor controller for 24 volt wheelchair motors in Electronics & ElectricalYou indicate the motors need 24V, 5A, but the controller you specified can only provide up to 5A per channel. Normally wheelchair motors require more...5 replies | 225 view(s)
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05-09-2013, 02:22 PMCasmat replied to a thread Pride Jet-3 Robot Project Battery Charger Question.... in General DiscussionPerhaps you could put the chair system back together and measure the output of those the wires when the battery is charging or not in order to figure...2 replies | 196 view(s)
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05-09-2013, 09:42 AMCbenson replied to a thread Dagu 4WD Thumper / inaccuracy + question in Robot Kits and Development PlatformsWe have corrected the description and thank you for bringing this to our attention. The controller is sold separately.3 replies | 230 view(s)
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05-09-2013, 08:07 AMAre you talking about a full sized boat or just R/C? If it's a full-sized boat, you only need a small laptop or netbook computer and a USB GPS...3 replies | 958 view(s)
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05-09-2013, 08:04 AMUnfortunately we don't carry a mount for those types of stepper motors.1 replies | 154 view(s)
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05-08-2013, 09:27 AMCbenson replied to a thread Looking for Help with Making Flowers Go In and Out of a Flexible Tube in ActuatorsThe Pololu servo controller needs an external source for the signal (either a microcontroller or a computer via USB to serial adapter). If you want...5 replies | 278 view(s)
About Casmat
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About Casmat
- Location:
- Montreal
- Interests:
- Robotics, DIY, Open Source
- Occupation:
- Robotics Specialist
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