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

**A couple of photos of the DM-1 Spec conversion . . . -** 01.15.2009, 11:57 PM

Here we have my latest creation. I am using the solid spool with the center shaft and out drives from the 2-speed. Also, I started with a Novak conversion kit but am abandoning this idea for a RCPD top plate and motor mount with a RC-Monster battery tray.

My current plan is to use a MMM v3

and a Neu 1512 1.5D/F. I think I will gear this 3300Kv motor at 14/51 on 4S to start and see how things go. Hopefully they go fast!

Oh well, it will be several weeks for the RCPD stuff to get here so this will be it for a little while. I might anodize the parts red if I can piggy-back an order from work. Cheers!

BL_RV0 · 01.16.2009, 10:49 AM

Quote:

Originally Posted by dangerwr

Here we have my latest creation. I am using the solid spool with the center shaft and out drives from the 2-speed. Also, I started with a Novak conversion kit but am abandoning this idea for a RCPD top plate and motor mount with a RC-Monster battery tray.

My current plan is to use a MMM v3

and a Neu 1512 1.5D/F. I think I will gear this 3300Kv motor at 14/51 on 4S to start and see how things go. Hopefully they go fast!

Oh well, it will be several weeks for the RCPD stuff to get here so this will be it for a little while. I might anodize the parts red if I can piggy-back an order from work. Cheers!

Nice start man! Keep the pics coming.

ssspconcepts · 01.18.2009, 04:01 PM

Brushless OFNA DM-1 SPEC: Flightpower 5S 5000mah (25C) Battery, Mamba Monster Speed Controller, Neu/Castle 1515 2200kv motor, 51T Mod1 Spur gear, 25T Mod1 pinion (I know this is too big...but its fast as heck and fun), and Spider Eight 43/13 ring and pinion differentials.

Differential Ratio: 3.3076923076923075
Transmission Ratio: 1
Other Ratio: 1
Spur Tooth Count: 51
Pinion Tooth Count: 25
Total Voltage: 18.5
Motor KV: 2200
Tire Diameter (inches): 4.17
Tire Ballooning (inches): 0
Motor Current Draw: 0
Motor coil Ω: 0.006
Spur/Pinion Ratio: 2.04 : 1
Total Ratio: 6.74769 : 1
Tire Circumference (inches): 13.1 inches (332.75 mm)
Total Motor Speed: 40700 RPM
Vehicle Speed: 74.83 mph (120.2 km/h)
Effective KV Value: 2200
KT constant: 0.61 oz-in/A
Motor Torque: Amperage not specified...
Final Torque: Amperage not specified...
Final Power: Amperage not specified...

As promised here is my amature video...

ssspconcepts · 01.18.2009, 06:48 PM

Here are the latest pics with the one speed direct drive installed.

From DM-1 Spec

year1camaro · 01.18.2009, 10:50 PM

[QUOTE=ssspconcepts;253388]Brushless OFNA DM-1 SPEC: Flightpower 5S 5000mah (25C) Battery, Mamba Monster Speed Controller, Neu/Castle 1515 2200kv motor, 51T Mod1 Spur gear, 25T Mod1 pinion (I know this is too big...but its fast as heck and fun), and Spider Eight 43/13 ring and pinion differentials.

Differential Ratio: 3.3076923076923075
Transmission Ratio: 1
Other Ratio: 1
Spur Tooth Count: 51
Pinion Tooth Count: 25
Total Voltage: 18.5
Motor KV: 2200
Tire Diameter (inches): 4.17
Tire Ballooning (inches): 0
Motor Current Draw: 0
Motor coil Ω: 0.006
Spur/Pinion Ratio: 2.04 : 1
Total Ratio: 6.74769 : 1
Tire Circumference (inches): 13.1 inches (332.75 mm)
Total Motor Speed: 40700 RPM
Vehicle Speed: 74.83 mph (120.2 km/h)
Effective KV Value: 2200
KT constant: 0.61 oz-in/A
Motor Torque: Amperage not specified...
Final Torque: Amperage not specified...
Final Power: Amperage not specified...

As promised here is my amature video...

What tires did you use for this run? Car looks fast fast fast!!! nice...Now to get it to stick to the road might be a challenge with all that power.

ssspconcepts · 01.18.2009, 10:59 PM

I actually used the stock treaded tires and wheels that came with the car. I am hoping that this summer (when it is 100+ degrees outside) that the tires will stick better.

year1camaro · 01.18.2009, 11:04 PM

Quote:

Originally Posted by ssspconcepts

I actually used the stock treaded tires and wheels that came with the car. I am hoping that this summer (when it is 100+ degrees outside) that the tires will stick better.

ahh, yes heat will help. Those are the saem tires that came on my gtp,,They are ok,,,but I wasn't to happy myself. I'm tryin out the foams on my DM hoping for better results......Was that an actual torque roll at the end of the video?

ssspconcepts · 01.18.2009, 11:19 PM

Quote:

Originally Posted by year1camaro

ahh, yes heat will help. Those are the saem tires that came on my gtp,,They are ok,,,but I wasn't to happy myself. I'm tryin out the foams on my DM hoping for better results......Was that an actual torque roll at the end of the video?

Yes. Both rolls in the video were due to mashing the throttle. Let me know how the foams work out. Seems like they would wear out fast...but I can see that they will probably stick better.

01.18.2009, 11:02 PM

Quote:

Originally Posted by year1camaro

What tires did you use for this run? Car looks fast fast fast!!! nice...Now to get it to stick to the road might be a challenge with all that power.

I bought some Kyosho slicks myself but have yet to try them but they are very sticky! Kyosho makes them in 3 different durometers--45, 55 and 60 Shore A. I put some on the roller and the car literally sticks to what ever surface I place it on (aside from the carpet!). I think these tires are going to be the best bet for getting these cars to hook-up.