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Thread: Xkill's mini

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Old 04-11-2019, 02:27 PM   #21
Rock Crawler
 
Join Date: Jan 2011
Location: Portugal
Posts: 597
Default Re: Xkill's mini

Thanks for the kind words.
First I have to make it run and then we will see how it performs.

If everything works as I hope I'm considering making the parts available in http://thingiverse.com/ so anyone can print these parts for free...
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Old 04-14-2019, 04:02 AM   #22
Pebble Pounder
 
Join Date: May 2015
Location: The Rocky maintains
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Default Re: Xkill's mini

Nice work on the chassis, it is very hard to find a bodiless chassis for the MRC.



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Old 05-25-2019, 09:27 PM   #23
Rock Crawler
 
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Ops...
I might have over done it....
Already working on a new version using 32P pinions and only 2t difference.
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Old 05-25-2019, 10:06 PM   #24
I wanna be Dave
 
Join Date: Jul 2014
Location: Deep South
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Default Re: Xkill's mini

That's quite a lot of OD/UD. Just don't ever need to back up. LOL
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Old 05-25-2019, 10:45 PM   #25
Rock Crawler
 
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Default Re: Xkill's mini

True....
But the main problem was that the pinions for the OD would not survive much.
So I'm working on a version with less OD (2 tooth difference instead of 6).
We will see how it goes, but time is running out for me.
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Old 05-27-2019, 06:47 PM   #26
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Default Re: Xkill's mini

Damn, you are a mad genius!
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Old 06-27-2019, 06:10 PM   #27
Rock Crawler
 
Join Date: Jan 2011
Location: Portugal
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Default Re: Xkill's mini

The switch to 32pitch pinions in the front was a great move!
Why didn't I go this route in the first place?!

Just waiting for pinions to do the same on the rear.
I will be using 13 and 15t pinions.
The "ticking" sound on the video is the pinions in the rear skipping teeth...

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Old 09-30-2019, 08:13 PM   #28
Rock Crawler
 
Join Date: Jan 2011
Location: Portugal
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Default Re: Xkill's mini

So, I guess I should do an update to this right...
Was waiting for a long time for the 32pitch pinions to arrive so I could finish the car.
Customs held the package for more than a month and I finished the car the day before traveling to Austria for Eurocrawl.
I went one day before the comp and used that day to test the mini for the first time.

I have 15weight oil on all 4 shocks and Dravtech supersoft springs.
The rear right was bottoming out a lot so I changed to soft (same as losi pink spring) and it was better.
Going uphill the dlux weights are awesome, going downhill is a totally different thing... The car is super front heavy and the brushless combo gave me zero control on downhill. Definitely one of the first things I have to do something about...
Just before leaving home I changed the from inserts for some memory foam on the outside and a harder, home made, inside foam.
With all that weight the front was washing off on sidehills... Foam tunning is also on the to do list...

Still, the car was a lot of fun to drive!!!!
Zero issues and everything held together, only had a few "clicks" on the front end when I pushed it on a bind...

I'll post pictures of the complete car and later I'll post the videos of my runs during Eurocrawl.


[IMG]SAM_4070[/IMG]

[IMG]SAM_4071[/IMG]

[IMG]SAM_4146[/IMG]

[IMG]SAM_4147[/IMG]

Rear clearance

[IMG]SAM_4148[/IMG]

[IMG]SAM_4149[/IMG]

My kids painted the skins of the Mini and the Pro car!
They was super happy and so was I!

[IMG]SAM_4150[/IMG]

Also added some weight to the rear...

[IMG]SAM_4151[/IMG]

Rear upper link support.

[IMG]SAM_4152[/IMG]

Rear UD case is 100% closed, unlike the front for clearance issues.

[IMG]SAM_4153[/IMG]

Front OD.
Next to it is the battery support and above the ESC support.

[IMG]SAM_4155[/IMG]

[IMG]SAM_4154[/IMG]

Tire gets pretty low from all that weight...

[IMG]SAM_4156[/IMG]

It's a tight fit but the receiver fits behind the servo and it's well protected.

[IMG]SAM_4157[/IMG]

Still want to try and get a few more degrees, but will have to redesign some parts...

[IMG]SAM_4159[/IMG]

The combo is very nice, going uphill...
Lot's of control and enough power.
I wander if a micro x will be better downhill...

[IMG]SAM_4160[/IMG]

The SDI shafts are nice and twisted but no major binding.

[IMG]SAM_4161[/IMG]


During Eurocrawl I got 9th out of 25 drivers and was super happy!
Even more amazing my spare parts car (Mini Pro with a CF gatekepper, stock motor and weights on the wheels and traxxas OD mod), was finished in the morning of the comp and was shared by 2 of my friends. One of them got an amazing 7th place!!

So now it's time to tune the car and iron out the bugs.
It's a lot of fun driving this car!
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Old 10-02-2019, 06:26 PM   #29
Rock Crawler
 
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Default Re: Xkill's mini

And here's video of the 5 courses.









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Old 10-29-2019, 10:00 PM   #30
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Default Re: Xkill's mini

That's awesome!
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