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  #1  
Old 05-04-2010
BloodClod BloodClod is offline
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Default Another mid-motor RB5...

Finally got round to working on this... more pics to come.



Base is a 3mm carbon fiber plate with additional 5mm bracing on the sides.

Still to finish up the rear shocktower mount, battery strap and probably a motor plate brace.
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  #2  
Old 05-04-2010
ashley123 ashley123 is offline
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thinking of attempting something like this myself but how do you cut your carbon fibre sheet???
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  #3  
Old 05-04-2010
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Metalsaw than sandpaper sticked to a piece of wood or plastic or metal block- justto have flat surface.

Dont think the carbon fiber is an unobtanium unmachinable material.
But you can mill it or cut it with waterjet. Does not matter if its a prepreg carbon or just wet press made.

simple
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  #4  
Old 06-04-2010
BloodClod BloodClod is offline
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Quote:
Originally Posted by ashley123 View Post
thinking of attempting something like this myself but how do you cut your carbon fibre sheet???
I've seen some really awesome projects here on Oople that cut the CF by hand.

I used a Sherline mill with a carbide endmill for this project though.
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  #5  
Old 06-04-2010
BloodClod BloodClod is offline
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More pics

Various parts milled out for this conversion.



Assembled chassis



Here's the chassis with the front and rear assemblies attached



Rear needed to be milled for proper fitment of the various parts (hingepin blocks, gearbox, etc.



Milled to fit the front assembly



Batteries are held in place with locators on the chassis and a battery strap on top.



Didn't have the right alu so I just made a motor plate support from a servo mount...
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  #6  
Old 06-04-2010
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Nice work!
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  #7  
Old 06-04-2010
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Pablo668 Pablo668 is offline
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Very nice work indeed, and there's something old-school Tamiya in the background, looking at those wheels......
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  #8  
Old 06-04-2010
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by looking at the wheels its most likely a sand scorcher in the background
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  #9  
Old 06-04-2010
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Nice Work!
Now I got inspired to build my third rb5-mid.
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  #10  
Old 07-04-2010
BloodClod BloodClod is offline
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Quote:
Originally Posted by Pablo668 View Post
Very nice work indeed, and there's something old-school Tamiya in the background, looking at those wheels......
Thanks. That's a re-release Sand Scorcher primed and ready for paint. Going to install LEDs in there too.

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by looking at the wheels its most likely a sand scorcher in the background
Righto!

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Originally Posted by Mr. Pink View Post
Nice Work!
Now I got inspired to build my third rb5-mid.
Can't wait to see that. I've seen your projects and they are amazing - esp done by hand! Have you run your cars with / without the idler mod? I'm wondering if the mid RB5 would benefit from this and if I should try to fit one in there.
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  #11  
Old 07-04-2010
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I have tried the idler mod once on a hi-grip indoor track, but I think it is best suited for outdoor low-grip. Didn't like it at all. Gives the car alot of forward rear grip when accelerating but vice versa when under brakeing. So stay with the 3-gear tranny.

Have you thought of a centralised gear-box brace not including the motor plate? Otherwise you will get different chassis-flex left to right.
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  #12  
Old 07-04-2010
BloodClod BloodClod is offline
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Quote:
Originally Posted by Mr. Pink View Post
I have tried the idler mod once on a hi-grip indoor track, but I think it is best suited for outdoor low-grip. Didn't like it at all. Gives the car alot of forward rear grip when accelerating but vice versa when under brakeing. So stay with the 3-gear tranny.

Have you thought of a centralised gear-box brace not including the motor plate? Otherwise you will get different chassis-flex left to right.
Tested the car today and things seemed pretty good with the 3-gear tranny. I know on my CR2 the 4-gear worked wonders on the car. I do run on a outdoor medium-loose track so the 4-gear might be an option on the looser days.

Thought about a centralized brace... maybe something ala X-6 squared with something mounting to the top of the battery strap - but that means I need a more secure battery strap though.

Something that would take more time would be to just mill out something to go around the motor like I did sometime ago on my first mid-motor project LOSI...

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  #13  
Old 08-04-2010
BloodClod BloodClod is offline
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Some pics of the car with the home-made undertray & electronics all installed.

Running a Tekin RS with a 8.5T motor in there.



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  #14  
Old 08-04-2010
ashley123 ashley123 is offline
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Thumbs up

looks amazing
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  #15  
Old 09-04-2010
BloodClod BloodClod is offline
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Quote:
Originally Posted by ashley123 View Post
looks amazing
Thanks!

Checked my stash and found a cover to fit the buggy!

I couldn't be happier!





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  #16  
Old 09-04-2010
BloodClod BloodClod is offline
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whaddya think?



lol!
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  #17  
Old 09-04-2010
mrspeedy mrspeedy is offline
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Needs some Sc10 tyres

Is the bumper for front end ballast
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  #18  
Old 09-04-2010
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Hi, Fine work yours
Looking at your pic of Losi Mid, the fiberglass used remembered me the ones sold by apexmodels looong time ago. I like it very much, easy to work on. Now only can have Kamtec but isn't the same finish.
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  #19  
Old 12-04-2010
BloodClod BloodClod is offline
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Quote:
Originally Posted by mrspeedy View Post
Needs some Sc10 tyres

Is the bumper for front end ballast
lol... big bumper completes the retro look!!!

And it adds weight for more steering.

Quote:
Originally Posted by chemax92 View Post
Hi, Fine work yours
Looking at your pic of Losi Mid, the fiberglass used remembered me the ones sold by apexmodels looong time ago. I like it very much, easy to work on. Now only can have Kamtec but isn't the same finish.
Thanks man!



Decided to bring the car for a race test yesterday and it ran great! Upped the oil in the rear to 40wt for a tad more damping in the rear to even out some chassis slap issues and it worked like a charm. I was most impressed with how the car jumped - it was doing the local triples better than my 4WD!

Pleased to report the car came home with TQ and A Main champ honors!
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  #20  
Old 12-06-2010
4times 4times is offline
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What body did you use?
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