Sunday, October 23, 2011

XR7 Mini Rally Car

The past year I made two RC Rally cars. Both were great but didn't have enough speed for me, the solution?? Easy, make a smaller and lighter car.

This new XR7 car has 16 studs wide, 29 studs length and weighs only 550gr.




It has 2XL motors for drive and a M motor for steering with return-to-center.

The transmission is very simple to get the best possible efficiency. The final gear rato is 1:2.78, and max. speed is 4 kph (2.5mph)






To finish a little video:



Some more pictures in brickself

http://www.brickshelf.com/cgi-bin/gallery.cgi?f=487060

You can download instructions here: Download ()

Or here: http://rebrickable.com/catalog/sheepo/xr7-mini-rally-car


I hope you like it!!!

20 comments:

Dylan Yeamans said...

very cool but you would have gotten a higher top speed with a Rc motor

Sheepo said...

You are right, but in a local competition we only could use PF motors...

Anonymous said...

Could you post more pictures of the steering?

invisibleninjakitty said...

This is great! All wheel drive is close to impossible in this size. Would you please post so,me more in depth photos of the front steering?

Sheepo said...

Please wait a few days, I will publish a pdf instructions step by step.

Dylan Yeamans said...

I don't know if you know the builder Jurgen or not but he has build a few rc cars as well an this one looks as is it may be better than his.

Anonymous said...

this is a beast! perfect design philosophy of light weight and simplicity = speed. on board footage is great!

Anonymous said...

Very nice. Waiting for the instructions. This is very inspiring!

François81 said...

There will be instructions?!!! YES!!!!!!!!!!

Anonymous said...

I am trying to reconstruct your vehicle but I do not have a few of the pieces you used. What is the part number for the piece that connects the two white wishbone pieces together? Also, what is the piece that is connected to the small PF motor? You used it to also connect the two large PF motors to the three gears?

Sheepo said...

Now you can the intructions step by step, and see it by yourself ;)

tuur said...

how do oyu get at the XL engine and at the recriver and at the batery box???
p.s. sorry but my english isn't that good

tuur

Sheepo said...

To buy parts bricklink.com

Anonymous said...

this is a great design. can you publish a full list of parts please. as im looking to make this but ill need to buy all of the parts

Anonymous said...

Does it have return to center steering?

Sheepo said...

Of course, but you need a little rubber.

Anonymous said...

Hi sheepo! Can you answer to this question please? Will I be able to make something like your Rally Car using NXT motors?

Sheepo said...

Of course, why not?? but you will need modify the motors conection.

Cloud said...

Hi Sheepo I really want to make this car but i dont have all the parts. Can you make a part list with the part IDs please?

Sheepo said...

You can do the list by yourself using LDD

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