| |
12-19-2009, 08:14 AM
| #1 |
| Rock Stacker Join Date: Jan 2009 Location: Riverside Commifornia
Posts: 73
|  outrunning a creeper
Has anyone tried running an outrunner on a creeper? Im pretty new at the crawling game, but I do have access to a lot of outrunners here locally. The other thing with this is what kind of wheel speed should I be shooting for? Just a close estimate so I can run some numbers.
|
|  |
| Sponsored Links | |
| | |
|
12-21-2009, 04:23 AM
| #2 |
| Rock Stacker Join Date: Oct 2009 Location: Sweden
Posts: 69
|
Mine ha walking pace - about 5km/h I will keep track of my local routes this way. I'm using a bluetooth-GPS that I connect to my PDA - by doing it this way I can reduce weight on the creeper and I can read the GPS on the PDA whenever I want. As the BT has >10Meters range I see no problem with connectivity or dropping signal as I almost always are next to the car anyway (except for filming that is) Last edited by UndCon; 12-21-2009 at 04:27 AM. |
|
| |
|
12-21-2009, 05:32 AM
| #3 | |
| Rock Stacker Join Date: Jan 2009 Location: Riverside Commifornia
Posts: 73
| Quote:
| |
|
| |
|
12-21-2009, 05:37 AM
| #4 |
| Rock Stacker Join Date: Oct 2009 Location: Sweden
Posts: 69
|
As is right now I'm running stock tires - but will most likely change to something better later on - now we have 50Cm snow here so no rides for a while... stock is:127 x 55 (R2.2) So some calcs should be pretty straight forward...my motor is Fifty-five |
|
| |
|
12-21-2009, 08:51 AM
| #5 | |
| RCC Addict Join Date: Oct 2008 Location: Plainfield, IL.
Posts: 1,297
| Quote:
 | |
|
| |
|
12-21-2009, 09:16 AM
| #6 |
| MODERATOR™   Join Date: Jul 2004 Location: Ohio
Posts: 18,928
|
We used to use around 1000 kv outrunners, but the stutter on start up was a killer. Once that can was spinning though, it was alllllll power. |
|
| |
|
12-21-2009, 09:01 PM
| #7 |
| Rock Stacker Join Date: Jan 2009 Location: Riverside Commifornia
Posts: 73
|
Yes I know EeePee. Spent many a beer sitting down reading it all. I'm doing some research using some of my aircraft outrunner knowledge to do something about the stuttering. I been chatting with another member and I think both of us will have attempts made in two different directions. I've run brushless exclusively for my aircraft and with a little theory in practice hope to come up with a good endproduct.
|
|
| |
|
12-22-2009, 12:19 AM
| #8 | |
| Rock Stacker Join Date: Oct 2009 Location: Sweden
Posts: 69
| Quote:
What I'm after is that you: know the gear ratio know the wheel diameter know the speed Then you can calculate how many RPM's the motor must have to get similar result...easy maths //UndCon | |
|
| |
|
12-22-2009, 12:35 AM
| #9 | |
| Rock Stacker Join Date: Jan 2009 Location: Riverside Commifornia
Posts: 73
| Quote:
That is exactly why asked about wheel speeds and then what kind of tire where being run. It would be best to know what the comp guys w/ hb rovers are running for gearing and top speeds. | |
|
| |
|
12-22-2009, 02:50 AM
| #10 |
| Rock Stacker Join Date: Oct 2009 Location: Sweden
Posts: 69
|
There might be a few ways to overcome this... By changing the curve on the TX to the throttle and/or by programming soft start in the ESC. If not 1 of the above helps you can try with both  I changed the curve to allow smoother start on my Creeper (RX programming) |
|
| |
|
12-22-2009, 03:45 AM
| #11 | |
| Rock Stacker Join Date: Jan 2009 Location: Riverside Commifornia
Posts: 73
| Quote:
| |
|
| |
|
12-22-2009, 03:18 PM
| #12 | |
| MODERATOR™ Join Date: Jul 2004 Location: Ohio
Posts: 18,928
| Quote:
 | |
|
| |
 |
| |
Linear Mode
