SparkFun Electronics Commentsurn:uuid:214d0e4e-f1b1-d287-ce26-ac5b4c9f82492024-03-19T00:52:06-06:00SparkFun ElectronicsCustomer #1529195 on ROB-11696 - Hobby Motor - GearCustomer #1529195urn:uuid:4c15fce3-09d1-b8cc-a237-5790fd452a352021-06-09T14:05:43-06:00<p>Will you guys be selling gears that go with this?</p>
linkmario3323 on ROB-11696 - Hobby Motor - Gearlinkmario3323urn:uuid:6e146785-712a-a9e4-693f-af53ac03d9c22017-05-02T18:27:42-06:00<p>(You probably already know) It doesn't. You could maybe hot-glue a lego gear on or 3d print something.</p>
Red Squirrel on ROB-11696 - Hobby Motor - GearRed Squirrelurn:uuid:21509dcb-f943-65df-6f09-42d7e4df54ba2016-12-26T09:57:18-07:00<p>The motor will most likely spin in reverse if you apply the voltage in reverse.</p>
Customer #847091 on ROB-11696 - Hobby Motor - GearCustomer #847091urn:uuid:6abe1cd4-cbbe-a35a-bbe2-eeabb3dc18412016-10-12T11:26:40-06:00<p>This is a noob question I guess: Can I make it spin 'backwards' by applying 'negative voltage'?</p>
Customer #694270 on ROB-11696 - Hobby Motor - GearCustomer #694270urn:uuid:4a1979e9-326a-7f8e-fae6-4310375376a72016-08-04T10:28:06-06:00<p>The scale in the picture is wrong. Outside diameter is 2.38 cm.</p>
Customer #763130 on ROB-11696 - Hobby Motor - GearCustomer #763130urn:uuid:d0d62ac3-4794-a6a9-de58-75c1c558d1cf2016-03-05T14:36:48-07:00<p>Does anyone have an SVG drawing to make a laser cut counter weight piece (out of wood, perhaps adding a weight to that if needed) that would attach to that gear nicely?<p>I know one option is to remove the gear...and we could also just do a circular cut out and hot glue to gear (I'm guessing).</p></p>
bobdabiulder on ROB-11696 - Hobby Motor - Gearbobdabiulderurn:uuid:3844a141-2653-c988-3a11-0d7ee78cd55d2015-05-15T05:43:34-06:00<p>This puppy can handle up to 9vdc from my testing. Don't have a 12vdc power supply, but I know that at 9vdc, it generates a heavy metallic smell.</p>
Customer #466449 on ROB-11696 - Hobby Motor - GearCustomer #466449urn:uuid:371b9727-6d6d-1213-4bc7-4464bb85185c2015-02-18T10:51:05-07:00<p>Flyback diodes can be useful to avoid the 20V, 50V or probably even 100V spikes due to the motor's inductance. As you most likely know, they are meant to be wired in the opposite way as the power supply (i.e. positive to cathode and negative to anode).<p>Now the problem is, if you want to reverse the motor's rotation, you have to reverse the polarity. If you reversed the polarity, the diode wouldn't be wired in the correct way anymore, and would instead short out the power supply anytime the motor was on.</p><p>And if your power supply was not current limited (e.g. LiPo batteries without protection circuitry) you would most likely set things on fire.</p></p>
Customer #356717 on ROB-11696 - Hobby Motor - GearCustomer #356717urn:uuid:7f90b0af-64d1-2840-e862-d9a912aa555f2015-01-31T01:21:44-07:00<p>Where might I find a gear to match it?</p>
Customer #544449 on ROB-11696 - Hobby Motor - GearCustomer #544449urn:uuid:7b03ec7e-442c-df92-c0e6-4860255dc41b2015-01-18T22:27:58-07:00<p>Datasheet says clockwise rotation. Does reversing polarity reverse direction of rotation?</p>
Customer #584640 on ROB-11696 - Hobby Motor - GearCustomer #584640urn:uuid:bdbb5601-af49-abc6-0d54-eff0727e67fb2014-08-19T17:02:01-06:00<p>Just wondering... can someone take this little gear off and use a hub to attach another gear? If so what should the bore of the hub be?</p>
MikeGrusin on ROB-11696 - Hobby Motor - GearMikeGrusinurn:uuid:5d5433e9-fc79-ae62-8bce-ad7072373f8d2014-06-03T11:53:38-06:00<p>That's for brush (electrical) noise suppression, it's a common addition to small motors. <a href="http://www.pololu.com/docs/0J15/9" rel="nofollow">Here's a nice writeup</a> from our friends at Pololu.</p>
Customer #559262 on ROB-11696 - Hobby Motor - GearCustomer #559262urn:uuid:63a63f53-660b-e22d-efe0-5ae162c842692014-06-01T00:21:13-06:00<p>Why is there a 0.1uF capacitor soldered across the motor terminals?
If anything, I would have thought a flyback diode would be added.</p>
Customer #553451 on ROB-11696 - Hobby Motor - GearCustomer #553451urn:uuid:6e6a89e6-373c-0d15-237f-72e9e9a5cc062014-05-11T15:44:55-06:00<p>Thanks.<br>
I don't know why so few places actually put basic drawings of their parts in the description. Heck, they even sell digital calipers here, how hard would it be to take a few measurments while they're making the description?</p>
Customer #551979 on ROB-11696 - Hobby Motor - GearCustomer #551979urn:uuid:b4378832-15aa-cff8-7740-c0b57319ce3a2014-05-06T09:38:28-06:00<p>How long until this is back in stock?</p>
Customer #447155 on ROB-11696 - Hobby Motor - GearCustomer #447155urn:uuid:9e92d8f2-3d1a-f3e5-791e-b9c3019e07152014-03-27T09:03:01-06:00<p>For those who are wondering, the gear is metric, with a pitch of 0.5mm/tooth. Also, the screw holes are M2.6, but if you're a fan of stainless fasteners, McMaster-Carr doesn't carry M2.6 in stainless, so I bought M2.5, and they fit, but they wiggle around a little until you tighten down on them.<p>I made a drawing of this part. It is available <a href="http://maxbareiss.com/ROB-11696.pdf" rel="nofollow">here</a>.</p></p>
Customer #487852 on ROB-11696 - Hobby Motor - GearCustomer #487852urn:uuid:1332f766-f737-e73d-32a1-be675cc7bb2b2014-02-28T07:03:31-07:00<p>what is the diameter of the body?</p>
Customer #477921 on ROB-11696 - Hobby Motor - GearCustomer #477921urn:uuid:c876c5c5-85e5-0ded-9794-b8834d44daa82013-10-31T15:25:57-06:00<p>Is there a motor "mount" that this can sit in? I tried double stick tape, but the torque does not allow it to sit firmly on a flat surface.</p>
KloudVine on ROB-11696 - Hobby Motor - GearKloudVineurn:uuid:a89b3279-98c5-0c5e-1110-2b482785e2442013-07-22T07:51:25-06:00<p>Just FYI,<p>This type of motor is typically found in RC toys coupled to a cheap plastic gearbox. It basically is going to spin at a ridiculous rate with very little torque. (in this case 6600 RPM). Think: portable fans (those AA powered ones).</p><p>That Elecrow motor has a D shaft, and a metal gearbox coupled to alot more torque from the motor to start with. Higher input torque to high reduction ratio leads to low speed, high torque output (77 RPM, 5000 g-cm). Think: industrial equipment.</p><p>Not saying there's anything wrong with either motor, but they're just meant for different uses.</p></p>
Customer #391375 on ROB-11696 - Hobby Motor - GearCustomer #391375urn:uuid:8eb30784-0989-fe53-331d-407b198b9c6c2013-07-21T01:12:48-06:00<p>I find <a href="http://www.elecrow.com/robotic-c-101/platform-c-101_103/3v-24v-big-torque-gear-motor-p-256.html" rel="nofollow">Elecrow</a> have a more powerful one. But it's a little expensive.</p>
Matt66 on ROB-11696 - Hobby Motor - GearMatt66urn:uuid:8fd0e37f-ceea-823f-81cc-228fb2b885c42013-07-20T16:41:41-06:00<p>Cool, now has protection for wires!!</p>
Customer #167681 on ROB-11696 - Hobby Motor - GearCustomer #167681urn:uuid:897efd38-abc4-971a-c5b7-04e57606fadd2013-07-19T17:56:50-06:00<p>What is the pitch of the gear? Is it 32p or 48p?</p>
LightManCA on ROB-11696 - Hobby Motor - GearLightManCAurn:uuid:83fa0e3b-8cb5-2523-76b7-bdaa1ca72d1a2013-07-19T11:02:50-06:00<p>Actually, any information you could give regarding the gear would be great. Not much there :)</p>
LightManCA on ROB-11696 - Hobby Motor - GearLightManCAurn:uuid:2f6fce3a-0879-5e4a-c1e8-c784ded05c942013-07-19T11:01:17-06:00<p>Any idea how well the gear meshes with Lego gears?</p>
Blueblast88 on ROB-11696 - Hobby Motor - GearBlueblast88urn:uuid:42f21f2e-d7c6-ae75-1b42-4a4e89a1c0162013-07-19T07:06:55-06:00<p>will you be selling gears to mate with this?</p>