Another mid-motor RB5...
Finally got round to working on this... more pics to come.
http://www.cool.per.sg/external_links/rb5/rb5_05.jpg 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. |
thinking of attempting something like this myself but how do you cut your carbon fibre sheet???
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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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I used a Sherline mill with a carbide endmill for this project though. |
More pics
Various parts milled out for this conversion. http://www.cool.per.sg/external_links/rb5/rb5_11.jpg Assembled chassis http://www.cool.per.sg/external_links/rb5/rb5_08.jpg Here's the chassis with the front and rear assemblies attached http://www.cool.per.sg/external_links/rb5/rb5_07.jpg Rear needed to be milled for proper fitment of the various parts (hingepin blocks, gearbox, etc. http://www.cool.per.sg/external_links/rb5/rb5_09.jpg Milled to fit the front assembly http://www.cool.per.sg/external_links/rb5/rb5_10.jpg Batteries are held in place with locators on the chassis and a battery strap on top. http://www.cool.per.sg/external_links/rb5/rb5_12.jpg Didn't have the right alu so I just made a motor plate support from a servo mount... http://www.cool.per.sg/external_links/rb5/rb5_06.jpg |
Nice work! :thumbsup:
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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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by looking at the wheels its most likely a sand scorcher in the background
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Nice Work!
Now I got inspired to build my third rb5-mid.:D |
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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.:thumbdown: 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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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... http://www.cool.per.sg/external_links/losi04.jpg |
Some pics of the car with the home-made undertray & electronics all installed.
Running a Tekin RS with a 8.5T motor in there. http://www.cool.per.sg/external_links/rb5/rb5_13.jpg http://www.cool.per.sg/external_links/rb5/rb5_14.jpg http://www.cool.per.sg/external_links/rb5/rb5_15.jpg |
looks amazing
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Checked my stash and found a cover to fit the buggy! I couldn't be happier! :) http://www.cool.per.sg/external_links/rb5/rb5_16.jpg http://www.cool.per.sg/external_links/rb5/rb5_17.jpg http://www.cool.per.sg/external_links/rb5/rb5_18.jpg |
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Needs some Sc10 tyres :thumbsup:
Is the bumper for front end ballast :D |
Hi, Fine work yours :thumbsup:
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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And it adds weight for more steering. :lol: Quote:
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! |
What body did you use?
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