Ofna DM-One Brushless Conversion (DM-1) - Page 12 - RC-Monster Forums

11:55 PM

Quote:

Originally Posted by ssspconcepts

Well that is good to know. My stock PF8 body is flimsy but it seems to hold up fine during speed runs.

The PROTOform bodies are .040" inch lexan. I do not have my calipers here at home but I can say that the Kyosho body is not made from anything thicker than what you normally would find. They are expensive too since they are licensed models from real manufacturers.

I think my DM-1 Spec is shipping out tomorrow

. Did yours come as a kit or was it 80% assembled?

year1camaro · 01.08.2009, 11:59 PM

I was wondering how it all went with your conversion. I flexed my chassis and took out second gear on the spur,,, did you have those problems? I made an upper support to help cure the problem. Mine used to be Nitro, but you can't run it anywhere public cause there loud so I decided if I'm gonna have fun with this I gotta go brushless. I added some Ofna foam trued tires. I also cut my own motor mount. Here is a couple pics of the project.

_paralyzed_ · 01.09.2009, 12:07 AM

awesome ^^^^^^^^^^

did you true the ofna tires or did they come that way? I'm too lazy...

year1camaro · 01.09.2009, 12:11 AM

Quote:

Originally Posted by _paralyzed_

awesome ^^^^^^^^^^

did you true the ofna tires or did they come that way? I'm too lazy...

thanks
Ofna True Blue they call em,,, they're done already. nice and sticky, ofna said they should handle the speed, we'll see,

BrianG · 01.09.2009, 12:13 AM

I see I'm not the only one who likes those upper-decks. They really stiffen things up to help prevent flexing at all. Maybe still some torsion flex, but not nearly as much as f/r flex.

That deck should help stripping the spurs, but I would maybe add an extra plate that goes under the motor mount and CD area so stiffen it a bit more. Since the motor mount and CD mounts are not on the same "plane" ANY flexing will eat spurs. Probably why Mike's mounts are so popular...

Nice body on that!

01.09.2009, 12:30 PM

Quote:

Originally Posted by BrianG

Nice body on that!

Which body is that? 1/7th??

I just received my DM-1 Spec last night and will be starting my conversion soon. I ordered the Ofna center spool and looks like it is specifically design to fit Ofna's spurs--does anyopne know?

year1camaro · 01.09.2009, 01:14 PM

Quote:

Originally Posted by dangerwr

Which body is that? 1/7th??

I just received my DM-1 Spec last night and will be starting my conversion soon. I ordered the Ofna center spool and looks like it is specifically design to fit Ofna's spurs--does anyopne know?

Yes,,it's the DMone Pro Kit....comes with body. Not sure on the spurs,,,but i'm gonna guess, yes.

BrianG · 01:22 PM

The Ofna single speed spur setup uses the 51T spurs: http://www.rc-monster.com/proddetail.php?prod=ofn30110

Luckily, I happen to have a few from the old days when using an emaxx tranny with strobe slipper setup was common.

Note about the Ofna single speed kit: It does not come with support bearings or outdrive cups so you need to get those seperate. Also, my kit did not come with the needed grub screw, which is 5mm.

year1camaro · 01.09.2009, 02:12 PM

Quote:

Originally Posted by BrianG

The Ofna single speed spur setup uses the 51T spurs: http://www.rc-monster.com/proddetail.php?prod=ofn30110

Luckily, I happen to have a few from the old days when using an emaxx tranny with strobe slipper setup was common.

Note about the Ofna single speed kit: It does not come with support bearings or outdrive cups so you need to get those seperate. Also, my kit did not come with the needed grub screw, which is 5mm.

I'm not gonna be needing that stuff, Im using the clutch bell and the two speed trans in my setup with mechanical brake. But thanks anyhow.

SidewaysLS4 · 01.09.2009, 03:18 PM

Nice rides guys!

01.10.2009, 03:05 AM

Quote:

Originally Posted by BrianG

The Ofna single speed spur setup uses the 51T spurs: http://www.rc-monster.com/proddetail.php?prod=ofn30110

Luckily, I happen to have a few from the old days when using an emaxx tranny with strobe slipper setup was common.

Note about the Ofna single speed kit: It does not come with support bearings or outdrive cups so you need to get those seperate. Also, my kit did not come with the needed grub screw, which is 5mm.

Ok. I am up to speed with the 51T spur--I will have to order one (or two!). As far as the center single-speed kit I installed that today (I will post pics soon). I used the center shaft from the 2-speed and seems to work fine--this way the bearings and out drives fit without issue. What is with the missing 5mm set screw?

Thanks for your help. Cheers!

year1camaro · 01.13.2009, 12:30 AM

I got a few more things done over the weekend. New Feigao 540XL is the first motor I'm tryin out.(we'll see if it sticks) The stock clutch bell and 2 speed gears are mounted to it. I made the radio tray up to support the receiver, antenna and brake servo also, one bolt and it swivels out for cleaning.

I'm still waiting on six 30C 5000mah lipo cells to come in the mail. I'm gonna start it out on four cells and see what happens.

I was wondering if anyone out there tried to run the DM brushless with the 2 speed? Any suggests, complains or praises?
I know the one down fall is no reverse, but I'm not sure how important that will be for parking lot racing. Thanks for comments and suggestions in advance.

01.15.2009, 01:27 AM

I have yet to hear of anyone running a 2-speed brushless on the DM-1. When I was building my Super RS4 (EP) I heard a few people talking about using the 2-speed from the Nitro version. What I gathered was that there was little need since the electric motor has a flat torque curve and would not benefit much from the 2-speed. I do not know personally but will be interesting to hear how yours works out with the 2-speed.

If you have the room I would think a 2-speed on a larger 1/7th scale would be fun. How do these things shift? Do they use some type of centrifugal clutch mechanism that switches out at a certain RPM?

_paralyzed_ · 01.15.2009, 01:37 AM

Quote:

Originally Posted by dangerwr

I have yet to hear of anyone running a 2-speed brushless on the DM-1. When I was building my Super RS4 (EP) I heard a few people talking about using the 2-speed from the Nitro version. What I gathered was that there was little need since the electric motor has a flat torque curve and would not benefit much from the 2-speed. I do not know personally but will be interesting to hear how yours works out with the 2-speed.

If you have the room I would think a 2-speed on a larger 1/7th scale would be fun. How do these things shift? Do they use some type of centrifugal clutch mechanism that switches out at a certain RPM?

exactly, a centrifugal clutch and a one way bearing. when the second speed hits and overrides the first, the first just spins freely because of the one way

year1camaro · 02:11 AM

Quote:

Originally Posted by dangerwr

I have yet to hear of anyone running a 2-speed brushless on the DM-1. When I was building my Super RS4 (EP) I heard a few people talking about using the 2-speed from the Nitro version. What I gathered was that there was little need since the electric motor has a flat torque curve and would not benefit much from the 2-speed. I do not know personally but will be interesting to hear how yours works out with the 2-speed.

If you have the room I would think a 2-speed on a larger 1/7th scale would be fun. How do these things shift? Do they use some type of centrifugal clutch mechanism that switches out at a certain RPM?

The dude who started this post was using a 2 speed, but he din't reply as of yet. One certain benefit would be torque curve, if you could keep it hooked up.