Marc's XR10 "The little Tank"

[Swiss Rock Force]

Are those motor plates made by Amok? They look really nice "thumbsup"

hi EverettY

yes, they are made by Amok. They are a bit different to the vanquish plates. all 3 bearings are 5x10mm. That means, you need one more for each plate. vanquish uses 2x 5x10mm and 1x 5x9mm bearing.

Marc

 

[Swiss Rock Force]

i started to work on my motor plates. it need some grinding work on the bearing holes and the whole shape of the plates to make them fit perfect. on the link mount side i had to reduce the thickness of the plate about 0.5mm. like this it fits perfect in the axle housing.

now i have to wait for the additional bearings to finish the first axle.

Marc

 

[Swiss Rock Force]

some guys asked me to build my chassis parts for them or to give the mesurements of it.
Because of no time to build more chassis parts, here are all mesurements of the two parts you need.

Use 2.0mm carbon at minimum. Especially for the "ears". I tested 1.5mm and it broke after a few tests.

I also decided to give a name to the chassis-type. I call it "shape-shifter" :mrgreen:

i hope the drawing is OK like this...

Very impotant!: I have no idea if it works with other links or shocks!

My links are Chaotic Titan Links for the original XR10 Chassis. Shocks are SCX10 plastic shocks (increased length with longer rodends)

Length of the posts between skid (original XR10 skid) and Chassis plate is 11mm. I think it will also work with 10mm. Take axial 10mm posts. They work perfect!

Marc

 

[ManxCrawler]

Looks familiar:

I think 'Force Feedback Control' would be better

 

[Swiss Rock Force]

I have to throw away my carbon motor plates :twisted:

i tried everything to make them fit perfect. but the gears don't move as smooth as with the vanquish alu plates.

So this investment was for this

Now I can start making my own carbon wheels... i hope they will become better than the motor plates...

 

[Swiss Rock Force]

here is my cut down body for 2013 season.

Length is now around 22cm.

Marc

 

[Swiss Rock Force]

last weekend we had our first 2013 comp (indoor). i reached 3rd place. this is ok for a first test with the "shape shifter" chassis. but still far away from Manu (racer_zh).

here is the link to all the pics and vids of the comp:

www.rccrawler.ch • Thema anzeigen - Bilder & Videos SMC Winter Crawler Comp 23.2.2013

yesterday i already started my work on the setup. my motors were much too deep. so i installed steel links for testing the perfect length of the links for ideal height of the motors. after the test i will build carbon links again with the correct length.

for more pressure on the front axle, i changed the springs from losi mini-t soft to losi mini-t hard. perhaps i will go back to medium (green). it feels almost a bit too hard now.

at the rear i installed losi MRC soft instead of losi mini-t soft. have to do some tests to find out what's better.

last change in the setup is the rear upper links. they were in the upper hole of the link mount. now they are in the middle one.

here are two mods i did before the comp, but didn't post them already. grinded the front drive shafts until they work smooth up to around 60 degrees of steering angle. also cutted the top of the knuckle weights to get lower CG.

i will comment the result of the changes asap.

BR,
Marc

 

[ittybitty]

Looking good...and nice driving at the comp! I'm curious how much weight you have on each front knuckle now that you've modified them.

 

[gpilot2000]

here are two mods i did before the comp, but didn't post them already. grinded the front drive shafts until they work smooth up to around 60 degrees of steering angle. also cutted the top of the knuckle weights to get lower CG.

Hey Mark, Im curious which grinding tool bit did you use to do this grinding ?. Nice build by the way.

Thanks in advance.

 

[Swiss Rock Force]

Looking good...and nice driving at the comp! I'm curious how much weight you have on each front knuckle now that you've modified them.

each side 105 g or 3.7 oz.

total front axle 210 g or 7.4 oz

 

[Swiss Rock Force]

Hey Mark, Im curious which grinding tool bit did you use to do this grinding ?. Nice build by the way.

Thanks in advance.

hi,

i used a dremel with a already used cutting disc which was smaller in diameter than a new one. you just have to be careful by grinding like this. but it works well.

Marc

 

[lowridinjuggalo]

I prob miss thus but what skid r u using

 

[BliB]

Look at the pics and you will see that its the stock skid =)

 

[Oz Bruiser]

Only just seen this build. Very cool and different. Good work.

Sent from my GT-I9300 using Tapatalk 2

 

[ittybitty]

I prob miss thus but what skid r u using

It's the stock Axial XR10 skid from the kit.

 

[Swiss Rock Force]

Last week i did some new mods on my rig.

first of all is the new shape-shifter 2.0 chassis. it is 10mm less wide than the first shape-shifter. That gives more space to the rear upper links for more setup opitions.

Old weight was 12g, 2.0 version is 11g

shape-shifter 1.0 on the left, 2.0 on the right...

also a new carbon servo-plate. it makes it possible to move the servo closer to the center of the axle. also more space for the right front tire when steering full left.

the new servo position...

made some new upper links out of some 4mm carbon and RPM rodends.

grinded down the parts which give the preload for the shock springs (i don't know the correct word for them...)

cutted the basic knuckle weights for better CG...

and took away the esc and receiver housing just to lose a few gramms...

finally some pics of the new shape-shifter 2.0 chassis...

 

[ittybitty]

Nice updates! Now we need a new video of this rig in action 8)

 

[Swiss Rock Force]

Nice updates! Now we need a new video of this rig in action 8)

Thank you! On Saturday we will have our first outdoor comp at Sense River (if weather is OK...)

A video of the comp will follow for sure.

 

[Wicked Monkey]

I would suggest running a brace between the rear shock support arms. Yes it's carbon fiber but it does flex and you are only screwed into delrin on that skid. Go a bit longer on the shock screws and use a delrin brace or even an aluminum one, then you wouldn't have to go too long on the screws. Plus that would give you a spot to rig up a rear mount for the body and keep it from flopping around.

 

[Swiss Rock Force]

I would suggest running a brace between the rear shock support arms. Yes it's carbon fiber but it does flex and you are only screwed into delrin on that skid. Go a bit longer on the shock screws and use a delrin brace or even an aluminum one, then you wouldn't have to go too long on the screws. Plus that would give you a spot to rig up a rear mount for the body and keep it from flopping around.

Thanks for you input "thumbsup"

The upper links will be higher than the brace if the shocks are fully compressed. That's why i didn't do it already. but i will find s solution if the flex is too much.

The flopping body i what i want. if the skid scratches on the rocks the body lifts up to move smooth over the rocks. but i'm still testing. this is not the final build i think.