Motor mounting hubs easily come loose
@robotgrrl1 wrote: Hi there, I am experiencing difficulties with the Pololu Universal Aluminum Mounting Hub on my 25D gear motors on my robot. It seems like the set screw comes loose over time. I’ve...
View ArticleDepth of M3 screws on 37D gearmotors?
@jwatte wrote: I seem to recall reading about a maximum suitable depth for the M3 mounting holes for the 37D gearmotors, and exceeding this depth would hit the gears or otherwise get in the way of the...
View ArticleMounting the machined aluminum bracket for 37Dmm motor
@jlo wrote: I’m an electronics fabricator but am new to robotics and so don’t quite know what my options are. Were I to mount these brackets to an aluminum plate, I would have to drill the plate by...
View ArticleBall wheel design
@awol wrote: Looking for advice: our project is to deliver free mobility aids to handicapped dogs. We need to locate a source or manufacture our own “Ball Wheel”. It must operate as a omni...
View ArticleSolarbotics SW-B BLACK Servo Wheel with Encoder Stripes, Silicone Tire
@poluluman132 wrote: Solarbotics SW-B BLACK Servo Wheel with Encoder Stripes, Silicone Tire… I was wondering if anyone could give me the bore width (i.e. the axle that goes thru the hole)… Very much...
View ArticleFix 25D Metal Gearmotor Bracket and RP5/Rover 5
@Morpheus wrote: How to fix 25D mm Metal Gearmotor Bracket on RP5/Rover 5 Expansion Plate RRC07B (Wide) Solid? Please provide examples. Posts: 7 Participants: 2 Read full topic
View ArticleThumper motors & gear ratio for power
@daybot wrote: i have a Wild Thumper chassis the 6 wheel drive platform the motors say gear ratio of 34:1 i was hoping for more power less speed … I have stripped gears for 3 motors and need to...
View ArticleCan I purchase a gearbox for a 37D motor?
@nmbike wrote: I recently bought 4 37D motors (over the Labor Day Sale, sweet deal), but I didn’t do my homework well enough and they turn too slowly. I’ve opened two motors so I can’t return them....
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Suitable metal horn for DSM44 with 20T 3.5mm and FT1117M 25T 6mm servo gear
@lado99 wrote: Hello, I’m using Power HD High-Speed Digital Micro Servo DSM44, which is 3.5 mm diameter 20T teeth gear. I’m trying to find metal horn for this motor, to add metal pin with screw on...
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CAD of wheels
@aldojagut1 wrote: Dagu Wild Thumper Wheel 120x60mm Pair with 4mm Shaft Adapters - Metallic Red pololu.com Pololu - Dagu Wild Thumper Wheel 120x60mm Pair with 4mm Shaft Adapters -... These two large...
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The failure of the gearbox 20D
@muss wrote: Hello Gear in the gearbox motor 20D broke. Can I find a replacement? IMG_0577.jpg2393×1761 3.37 MB Posts: 4 Participants: 2 Read full topic
View ArticleRC Switch Medium Low-Side Mosfet
@FrlAniml wrote: I’ve been looking for a reliable means to switch on/off a small 6 - 8 volt brushless cooling fan (2 pin) on an RC vehicle, from my transmitter, and at first glance the RC Switch...
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Using Gearmotors for robotic arm
I am trying to design a Raspberry Pi / Arduino arm with reasonably precise control with arms made of lightweight acrylic rod. Rather than using stepper motors, I was thinking of using high power metal...
View ArticleScooter Wheels Fall Off Motor
I am using the 37Dx68L mm, and unfortunately because the robot moves back and forth a lot the wheels easily become loose and just falls off. Are there any wheels compatible with this motor that I can...
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Pololu Qik 2s12v10 Motor Controller 3D printed Case
Hello everyone, Last week I designed a 3d printed case for Qik 2s12v10 motor controller. No need screw to fasten controller with case but if you want to fasten case to somewhere there are 4 screw hole...
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Thumper Chassis Articulating Motor Bracket
Is this bracket available as a spare part or for purchase? Kind of curious as it looks to be made from plastic and may break easily. I just ordered the 4-wheel version and was going over the various...
View ArticleScrew length for Machined Aluminum Bracket for 37D mm Metal Gearmotors
The product page for the 30:1 Metal Gearmotor 37Dx68L mm 12V says twice that mounting screws must not screw into the motor more than 3mm. However, the Machined Aluminum Bracket for 37D mm Metal...
View ArticlePololu 5" Robot Chassis RRC04A Mounting
Hello, I am looking to use Odroid C4 as my SBC foor my robot. As it has the same mounting holes specification as Raspberry Pi, is it possible to mount it on Pololu 5" Robot Chassis RRC04A? Thank you....
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How to attach to the motor output shaft?
Hello. You sell engines to various manufacturers. The shaft is exposed from the engine. Round shaft, no holes. Metal. How can you attach something to it? Not from an amateur’s point of view only, but...
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Dagu Wild Thumper 6WD All-Terrain Chassis, Black, 75:1 - Gear box stripped
Hello, I just completed my crawler build and as I was installing the wheels I noticed that the motor axles seem loose on 5 of the 6 motors. And as soon as I tried to drive it, the motor gear box is...
View Article12mm Hex Wheel Adapter for 6mm Shaft
Is there a timeline on when this item will be available or perhaps an alternative that is in stock. 2 posts - 2 participants Read full topic
View ArticleTamiya 70111 Wheel Set
Does the 70111 Tamiya wheel set come with the 3mm spring pins? Can I order some of these spring pins separately? 2 posts - 2 participants Read full topic
View ArticleDagu Wild Thumper 6WD All-Terrain Chassis Turning
We bought a Dagu Wild Thumper 6WD All-Terrain Chassis, Black, 34:1. We removed the middle two wheels to make the 6-wheel drive into a 4-wheel drive in order to install 2 brushes in the middle. We also...
View ArticleRemoving the Magnetic disc and the encoder on the Pololu's motor
Hello. I am using this Pololu’s DC motor, without the gearbox . I need to remove the encoder from this motor and put it on another motor since this motor is not working. The magnetic disc is very hard...
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Mounting Levitation Coils
Unless you purchase a kit or board, you don’t get any mounts for mini-levitation coils. I see that the mini-coils used for levitation projects likely have an M3 thread, about (because nobody gives...
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