RCCrawler Forums

JohnRobHolmes · 05-13-2010, 02:32 PM

It will happen.

SVEN · 05-13-2010, 08:11 PM

Bummer, you should start your own factory.

JohnRobHolmes · 05-13-2010, 08:26 PM

I am thinking I should. Stuff won't be nearly as cheap as overseas factories though. Catch-22

Semi Pro · 05-13-2010, 09:14 PM

Quote:

Originally Posted by JohnRobHolmes

I am thinking I should. Stuff won't be nearly as cheap as overseas factories though. Catch-22

people will pay for quality

thats why Neu motors sell so well, thats why people will buy castle and tekin esc's and not hobbyking/wing crap

Aussie Nerd · 05-13-2010, 09:39 PM

I know it would be a pain, but what about multiple factories? Get one to make the outrunner and then send it to a sensored motor making factory and get them to do the sensor work?

Kieren

D_Frawg · 06-13-2010, 11:28 PM

Back around Christmas I talked with Joe Ford about this sensored outrunner idea that I had. He was having the same manufacturing problems you are having so castle called it quits. American made sounds fine to to me Hell send me a PM and I'll help you hand Build some. Isn't hand built better in the LoNG run anyway

Hvrc · 06-14-2010, 12:58 PM

As for the sensors being mounted, the metal plates where the copper winding is around, would it harm operations if you were to weld a bracket for the sensors, like a small bucket with a dab of liquid electrical tape? Or how you had them in the first proto, inbetween but ditch the hot glue for a rubber cement type of adhesive to make it a little more "shock resistant". I will be trying this as well in the near future, couple of hk out runners, and a couple of hk sensored systems. If I can find a way to do this myself, with existing products, I'll be more then happy to share with you. Just to see a production that I helpped with

.

Also, do you think a heavier can would help with this issue? I understand a lighter one would be ideal, kind of like a flywheel. The lighter it is the easier to get through rpm. The heavier and it holds it's momentum more.

And your experiances are true to the saying,
"If you want something done right, you'll have to do it yourself"

losikid · 07-09-2010, 09:58 PM

Any news on these

Thorsteenster · 08-25-2010, 10:10 PM

Quote:

Originally Posted by JohnRobHolmes

It will happen.

Yippee!!

Had any time to mess with this more?

JohnRobHolmes · 08-25-2010, 10:16 PM

Yes, just sent off (another) technical diagram to a factory today. Proto 5 and 6 in works. Maybe one day they will interpret my CAD and diagrams properly? Only two years in the making?

PS: Multipole theory for the win. All this engineering study will pay off one day. PLC? CADCAM? BLDCSCOMMUTATION?

JohnRobHolmes · 09-08-2010, 09:29 PM

And finally, I have a working prototype that I didn't have to build myself. Ok, so I had to wind it, terminate it, reposition some surface mount parts, and position the laminations properly. I didn't have to run the CNC and glue the lams myself, Ha! But I have the smoothest crawling outrunner in the game....

People at Nats will get all the test drives they want. Now to wait on the updated PCBs that I ordered to ensure that I don't have to go through all this again. If all goes well I will have the new motor in production shortly. Then there are 3 or 6 other brushless designs and two brushed motors to complete. You guys think this is cool, just wait for what is next.

oldhippie · 09-08-2010, 09:38 PM

Awesome!!!!

Aussie Nerd · 09-08-2010, 09:53 PM

Come on what's with all these threads promising awesome stuff with no pictures

Can't wait for me details though.

Kieren

JohnRobHolmes · 09-08-2010, 09:57 PM

I still need to clean up the wiring, right now there are 11 wires coming out of the motor

. I will get some vid and pics this weekend at Nats. By looking at it, you couldn't tell it was anything other than a normal Revolver unless you really looked close.

Almighty Malach · 09-08-2010, 10:24 PM

Badass! How well would one of these work in a losi comp crawler?

JohnRobHolmes · 09-08-2010, 10:33 PM

It would likely be too slow for the losi unless you got rid of the gearbox, the fastest I would want to push the design is around 16k rpm. What are the worms, around 30:1?

One of the next inrunner designs will be better suited for the task. The nicest ones will be capable of 60k rpm officially, and 100k rpm unofficially.

LincolnBlack · 09-08-2010, 11:44 PM

Losi worms are 25:1 to the best of my knowledge.

JohnRobHolmes · 09-09-2010, 07:34 AM

Yes yes, that is right. I searched high and low and just couldn't find it. It would be possible to get rid of the tranny and put this in the middle, although a special design would be needed to keep start up speed nice and slow.

English Steve · 09-09-2010, 08:03 AM

Sweet can you do one that will fit in my ax10 Clinger i only have a 30mm depth

losikid · 09-09-2010, 08:26 AM

100k rpm

Whats gonna happen when it blows up in my crawler. lol

Glad to see you finally got it working, now we need a esc that can handle both 2 motors for an moa brushless crawler, have a built in dig, if my research is right its called like a double loop pi generator or something like that, this will cancel out all the unwanted stall also so we won't have to be worrying about unwanted clod stall, although i have gotten used to it but it would be nice to go back to a pistol grip and it would be the last feature of my miw (motor in wheel) crawler i have all planned out

06-14-2010, 12:58 PM	#167
Hvrc Quarry Creeper Join Date: May 2010 Location: Plumas county Posts: 208	As for the sensors being mounted, the metal plates where the copper winding is around, would it harm operations if you were to weld a bracket for the sensors, like a small bucket with a dab of liquid electrical tape? Or how you had them in the first proto, inbetween but ditch the hot glue for a rubber cement type of adhesive to make it a little more "shock resistant". I will be trying this as well in the near future, couple of hk out runners, and a couple of hk sensored systems. If I can find a way to do this myself, with existing products, I'll be more then happy to share with you. Just to see a production that I helpped with . Also, do you think a heavier can would help with this issue? I understand a lighter one would be ideal, kind of like a flywheel. The lighter it is the easier to get through rpm. The heavier and it holds it's momentum more. And your experiances are true to the saying, "If you want something done right, you'll have to do it yourself" Last edited by Hvrc; 06-14-2010 at 01:00 PM.

08-25-2010, 10:16 PM	#170
JohnRobHolmes owner, Holmes Hobbies LLC Join Date: Nov 2004 Location: Volt up! Gear down! Posts: 20,290	Yes, just sent off (another) technical diagram to a factory today. Proto 5 and 6 in works. Maybe one day they will interpret my CAD and diagrams properly? Only two years in the making? PS: Multipole theory for the win. All this engineering study will pay off one day. PLC? CADCAM? BLDCSCOMMUTATION? Last edited by JohnRobHolmes; 08-25-2010 at 10:20 PM.

LinkBacks (?) LinkBack to this Thread: http://www.rccrawler.com/forum/electronics/136315-sensored-outrunner-motors-revolver-s.html
Posted By	For	Type	Date
Outrunner for rock crawler - Kv and low-speed smoothness, is my theory sound? - RC Groups	This thread	Refback	10-07-2011 12:03 AM

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05-13-2010, 02:32 PM	#161
JohnRobHolmes owner, Holmes Hobbies LLC Join Date: Nov 2004 Location: Volt up! Gear down! Posts: 20,290	It will happen.

05-13-2010, 08:11 PM	#162
SVEN I wanna be Dave Join Date: Feb 2005 Location: Burnsville Posts: 3,096	Bummer, you should start your own factory.

05-13-2010, 08:26 PM	#163
JohnRobHolmes owner, Holmes Hobbies LLC Join Date: Nov 2004 Location: Volt up! Gear down! Posts: 20,290	I am thinking I should. Stuff won't be nearly as cheap as overseas factories though. Catch-22

05-13-2010, 09:39 PM	#165
Aussie Nerd RCC Addict Join Date: Jun 2009 Location: QLD, Australia Posts: 1,512	I know it would be a pain, but what about multiple factories? Get one to make the outrunner and then send it to a sensored motor making factory and get them to do the sensor work? Kieren

06-13-2010, 11:28 PM	#166
D_Frawg Rock Stacker Join Date: May 2007 Location: Fort Payne Posts: 92	Back around Christmas I talked with Joe Ford about this sensored outrunner idea that I had. He was having the same manufacturing problems you are having so castle called it quits. American made sounds fine to to me Hell send me a PM and I'll help you hand Build some. Isn't hand built better in the LoNG run anyway

07-09-2010, 09:58 PM	#168
losikid Got Worms? Join Date: Jun 2009 Location: Golden, CO Posts: 6,116	Any news on these

09-08-2010, 09:29 PM	#171
JohnRobHolmes owner, Holmes Hobbies LLC Join Date: Nov 2004 Location: Volt up! Gear down! Posts: 20,290	And finally, I have a working prototype that I didn't have to build myself. Ok, so I had to wind it, terminate it, reposition some surface mount parts, and position the laminations properly. I didn't have to run the CNC and glue the lams myself, Ha! But I have the smoothest crawling outrunner in the game.... People at Nats will get all the test drives they want. Now to wait on the updated PCBs that I ordered to ensure that I don't have to go through all this again. If all goes well I will have the new motor in production shortly. Then there are 3 or 6 other brushless designs and two brushed motors to complete. You guys think this is cool, just wait for what is next.

09-08-2010, 09:38 PM	#172
oldhippie I wanna be Dave Join Date: Feb 2009 Location: 20 miles southeeast of downtown Sacramento Posts: 2,373	Awesome!!!!

09-08-2010, 09:53 PM	#173
Aussie Nerd RCC Addict Join Date: Jun 2009 Location: QLD, Australia Posts: 1,512	Come on what's with all these threads promising awesome stuff with no pictures Can't wait for me details though. Kieren

09-08-2010, 09:57 PM	#174
JohnRobHolmes owner, Holmes Hobbies LLC Join Date: Nov 2004 Location: Volt up! Gear down! Posts: 20,290	I still need to clean up the wiring, right now there are 11 wires coming out of the motor . I will get some vid and pics this weekend at Nats. By looking at it, you couldn't tell it was anything other than a normal Revolver unless you really looked close.

Sponsored Links

09-08-2010, 10:24 PM	#175
Almighty Malach RCC Addict Join Date: Feb 2008 Location: Crawlerado Posts: 1,411	Badass! How well would one of these work in a losi comp crawler?

09-08-2010, 10:33 PM	#176
JohnRobHolmes owner, Holmes Hobbies LLC Join Date: Nov 2004 Location: Volt up! Gear down! Posts: 20,290	It would likely be too slow for the losi unless you got rid of the gearbox, the fastest I would want to push the design is around 16k rpm. What are the worms, around 30:1? One of the next inrunner designs will be better suited for the task. The nicest ones will be capable of 60k rpm officially, and 100k rpm unofficially.

09-08-2010, 11:44 PM	#177
LincolnBlack Quarry Creeper Join Date: Sep 2007 Location: Central Coast, NSW, Australia Posts: 277	Losi worms are 25:1 to the best of my knowledge.

09-09-2010, 07:34 AM	#178
JohnRobHolmes owner, Holmes Hobbies LLC Join Date: Nov 2004 Location: Volt up! Gear down! Posts: 20,290	Yes yes, that is right. I searched high and low and just couldn't find it. It would be possible to get rid of the tranny and put this in the middle, although a special design would be needed to keep start up speed nice and slow.

09-09-2010, 08:03 AM	#179
English Steve Quarry Creeper Join Date: Apr 2008 Location: Leicester, UK Posts: 235	Sweet can you do one that will fit in my ax10 Clinger i only have a 30mm depth

09-09-2010, 08:26 AM	#180
losikid Got Worms? Join Date: Jun 2009 Location: Golden, CO Posts: 6,116	100k rpm Whats gonna happen when it blows up in my crawler. lol Glad to see you finally got it working, now we need a esc that can handle both 2 motors for an moa brushless crawler, have a built in dig, if my research is right its called like a double loop pi generator or something like that, this will cancel out all the unwanted stall also so we won't have to be worrying about unwanted clod stall, although i have gotten used to it but it would be nice to go back to a pistol grip and it would be the last feature of my miw (motor in wheel) crawler i have all planned out

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Thread: Sensored Outrunner motors- Revolver S