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-   -   Ofna DM-One Brushless Conversion (DM-1) (https://www.rc-monster.com/forum/showthread.php?t=8236)

ssspconcepts 12.13.2008 10:16 PM

Progress report DM-1 Spec
 
Well, I worked on it most of the day and this is how far I got. I swapped the 2-speed for a center diff and swapped the stock diffs for spiders.

Hopefully the motor will be here Monday.

<table style="width:auto;"><tr><td><a href="http://picasaweb.google.com/lh/photo/MyzKdx4ehBcsCH18rbjMSQ"><img src="http://lh3.ggpht.com/_Go2PcH5NPr4/SURrM0BTtPI/AAAAAAAACOM/61xTc1qq_iQ/s800/IMG_2644.JPG" /></a></td></tr><tr><td style="font-family:arial,sans-serif; font-size:11px; text-align:right">From <a href="http://picasaweb.google.com/ssspconcepts/DM1Spec">DM-1 Spec</a></td></tr></table>
<table style="width:auto;"><tr><td><a href="http://picasaweb.google.com/lh/photo/9gQ7cqvXVlsrt6Us0Ab8vg"><img src="http://lh3.ggpht.com/_Go2PcH5NPr4/SURrO2B7M-I/AAAAAAAACOU/KOAPqwlxv7M/s800/IMG_2645.JPG" /></a></td></tr><tr><td style="font-family:arial,sans-serif; font-size:11px; text-align:right">From <a href="http://picasaweb.google.com/ssspconcepts/DM1Spec">DM-1 Spec</a></td></tr></table>
<table style="width:auto;"><tr><td><a href="http://picasaweb.google.com/lh/photo/p-pVLEujMf2dlWW3XBBGbA"><img src="http://lh4.ggpht.com/_Go2PcH5NPr4/SURrReIOHVI/AAAAAAAACOc/VZ4Dc1pwlhg/s800/IMG_2646.JPG" /></a></td></tr><tr><td style="font-family:arial,sans-serif; font-size:11px; text-align:right">From <a href="http://picasaweb.google.com/ssspconcepts/DM1Spec">DM-1 Spec</a></td></tr></table>
<table style="width:auto;"><tr><td><a href="http://picasaweb.google.com/lh/photo/ea4KFDZ2jNONAeajkuWxew"><img src="http://lh6.ggpht.com/_Go2PcH5NPr4/SURrTfuY-OI/AAAAAAAACOk/wBo-rTjajzU/s800/IMG_2647.JPG" /></a></td></tr><tr><td style="font-family:arial,sans-serif; font-size:11px; text-align:right">From <a href="http://picasaweb.google.com/ssspconcepts/DM1Spec">DM-1 Spec</a></td></tr></table>
<table style="width:auto;"><tr><td><a href="http://picasaweb.google.com/lh/photo/uDwmArH-7hWlTnWbFYCHOQ"><img src="http://lh6.ggpht.com/_Go2PcH5NPr4/SURrVejYKYI/AAAAAAAACOs/JjCgkdEtAfk/s800/IMG_2648.JPG" /></a></td></tr><tr><td style="font-family:arial,sans-serif; font-size:11px; text-align:right">From <a href="http://picasaweb.google.com/ssspconcepts/DM1Spec">DM-1 Spec</a></td></tr></table>

dangerwr 12.14.2008 02:15 PM

:gasp: Man that thing is a beauty--if I have not said that already. Are you using RCPD motor mount? I like how they suspend the ESC. Will that battery tray fit a 4S?

I have ordered a few things for mine but have to wait to X-Mas to start the build :whistle:.

jnev 12.14.2008 02:20 PM

That is a rc-monster motor mount. And that battery tray will definitely fit a 4s pack with ease.

Awesome build! Looks really clean. What motor do you plan to run in it? What voltage?

ssspconcepts 12.14.2008 02:20 PM

Too bad there aren't torsen diffs that can hold up to BL power...:neutral:

ssspconcepts 12.14.2008 02:26 PM

Quote:

Originally Posted by dangerwr (Post 241941)
:gasp: Man that thing is a beauty--if I have not said that already. Are you using RCPD motor mount? I like how they suspend the ESC. Will that battery tray fit a 4S?

I have ordered a few things for mine but have to wait to X-Mas to start the build :whistle:.

Thanks. I used RC-Monster Mike's Jammin CR X-1 buggy mount and RC Product Designs' Losi 8 diff top plate (required some dremel/drilling to get it to fit), and a RC Product Designs Losi 8 battery tray. The battery tray will fit up to 6S flight power/thunder power packs. Got a Castle Neu 2200kv motor on the way.

ssspconcepts 12.14.2008 02:27 PM

Quote:

Originally Posted by jnev (Post 241943)
That is a rc-monster motor mount. And that battery tray will definitely fit a 4s pack with ease.

Awesome build! Looks really clean. What motor do you plan to run in it? What voltage?

Thanks. I will run the Castle Neu 2200kv at 5S.

dangerwr 12.14.2008 06:08 PM

Quote:

Originally Posted by ssspconcepts (Post 241947)
Thanks. I used RC-Monster Mike's Jammin CR X-1 buggy mount and RC Product Designs' Losi 8 diff top plate (required some dremel/drilling to get it to fit), and a RC Product Designs Losi 8 battery tray. The battery tray will fit up to 6S flight power/thunder power packs. Got a Castle Neu 2200kv motor on the way.

Nice. I will probably go with the Novak conversion kit but I really like the idea using the RCPD top diff plate. Puts the ESC out of the way and makes room for battery tray. I can not wait to do my build. I was thinking of using Novak's HV 4.5 but believe that motor is 5000Kv and may get a little hot in the old parking lot. I was hoping for a +60mph car :whip:.

speedracer1129 12.14.2008 07:21 PM

Quote:

Originally Posted by dangerwr (Post 242007)
Nice. I will probably go with the Novak conversion kit but I really like the idea using the RCPD top diff plate. Puts the ESC out of the way and makes room for battery tray. I can not wait to do my build. I was thinking of using Novak's HV 4.5 but believe that motor is 5000Kv and may get a little hot in the old parking lot. I was hoping for a +60mph car :whip:.


If you run a similiar setup like what SSSP is planning, that speed can be done!

ssspconcepts 12.14.2008 08:01 PM

Quote:

Originally Posted by dangerwr (Post 242007)
Nice. I will probably go with the Novak conversion kit but I really like the idea using the RCPD top diff plate. Puts the ESC out of the way and makes room for battery tray. I can not wait to do my build. I was thinking of using Novak's HV 4.5 but believe that motor is 5000Kv and may get a little hot in the old parking lot. I was hoping for a +60mph car :whip:.


5S with a 2200kv Neu can easily be geared for 60+ mph...especially with this rig because it is very light and it will be a road car.

The EL8 RCPD top plate is nice but I recommend you get the one for the Jammin because I had to drill out the mounting holes quite a bit before everything would line up perfectly. I finished the mount by using some flanged spacers/washers so it would look nice and tidy.

dangerwr 12.14.2008 09:00 PM

Quote:

Originally Posted by speedracer1129 (Post 242019)
If you run a similiar setup like what SSSP is planning, that speed can be done!

Should be pretty similar. I have a Neu for my Losi 8ight but have Novak in my HPI Superten--the thing is a land rocket and is in the 65+mph range.

I just read the Novak recommends their HV 4.5 for speed runs only. I think they are referring to use in an E-Revo or something like a monster truck.

I will gear down the pinion and use a 4S--hopefully I will not melt anything. I would love it if this thing could squeal the tires :oh:.

I bought the Kyosho F430GT body and am going to paint it like this yellow Scuderia: http://www.tuningnews.net/news/08062...0-scuderia.jpg

dangerwr 12.14.2008 09:09 PM

Quote:

Originally Posted by ssspconcepts (Post 242029)
5S with a 2200kv Neu can easily be geared for 60+ mph...especially with this rig because it is very light and it will be a road car.

The EL8 RCPD top plate is nice but I recommend you get the one for the Jammin because I had to drill out the mounting holes quite a bit before everything would line up perfectly. I finished the mount by using some flanged spacers/washers so it would look nice and tidy.

Gotcha. I will pick up the top plate for the Jammin' buggy. How light is the car compared to a 1/8th buggy? Also, it seems that you knew to upgrade the diffs--will the stock ones not hold up very long under BL?

ssspconcepts 12.14.2008 10:01 PM

Quote:

Originally Posted by dangerwr (Post 242045)
Gotcha. I will pick up the top plate for the Jammin' buggy. How light is the car compared to a 1/8th buggy? Also, it seems that you knew to upgrade the diffs--will the stock ones not hold up very long under BL?


The stock diffs were plenty robust...I had a spare set of the spiders. I figured I'd use the spiders since I had them handy and they are smoother than the stockers. Not exactly sure, but the car is probably 10-15% lighter than the Jammin buggy-IMO. It is considerably lighter than my BL Jammin CRT, which is set up with the same conversion stuff.

dangerwr 12.14.2008 11:21 PM

Quote:

Originally Posted by ssspconcepts (Post 242056)
The stock diffs were plenty robust...I had a spare set of the spiders. I figured I'd use the spiders since I had them handy and they are smoother than the stockers. Not exactly sure, but the car is probably 10-15% lighter than the Jammin buggy-IMO. It is considerably lighter than my BL Jammin CRT, which is set up with the same conversion stuff.

Are these the Spiders you are using?
http://www.amainhobbies.com/product_...ducts_id/24323

http://www.amainhobbies.com/product_...ducts_id/24324

Not exactly cheap! I think I can find them on eBay for a bit less. Not sure but will probably run the stock ones in the F/R but replace the center diff with a Spider. You mentioned there was a fit issue or is it a direct fit?:great:

ssspconcepts 12.14.2008 11:56 PM

Quote:

Originally Posted by dangerwr (Post 242070)
Are these the Spiders you are using?
http://www.amainhobbies.com/product_...ducts_id/24323

http://www.amainhobbies.com/product_...ducts_id/24324

Not exactly cheap! I think I can find them on eBay for a bit less. Not sure but will probably run the stock ones in the F/R but replace the center diff with a Spider. You mentioned there was a fit issue or is it a direct fit?:great:

Those are the ones. If you drop in a center diff, you will have to replace your rear center drive shaft with a different size...I have a spare if you need it.

dangerwr 12.15.2008 12:19 AM

Quote:

Originally Posted by ssspconcepts (Post 242086)
Those are the ones. If you drop in a center diff, you will have to replace your rear center drive shaft with a different size...I have a spare if you need it.

Thanks! I will let you know once I actually get down to it. I am wondering about that solid center shaft that another member posted the link on Tower or the Spider center diff. Is there an advantage to using a true differential over a solid shaft?


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