RCCrawler Forums

TotoRax · 12-05-2011, 04:07 PM

Hello,

A sort tread, to present Margouillat frame in version Sportsmann. I recovered the axle of the Matoutou project.

The new Tranny. The innovation, it is the skid into 1 parts.

The frame and the new mechanic

Ti-link

Here, a short video of test

Thanks

opek · 12-05-2011, 05:49 PM

wonderful!

La porte improbable.mp4 - YouTube

TotoRax · 12-05-2011, 06:13 PM

Quote:

Originally Posted by opek

La porte improbable.mp4 - YouTube

Thanks

La porte improbable is with my other AX-10 with dig

Stormin2u · 12-05-2011, 07:23 PM

Your truck is incredible, thats some very nice work. Your link geometry is sexy and the different lower link widths front and rear on the skid is interesting. I would love to take it for a spin.

Tanis · 12-05-2011, 07:59 PM

Nice work, looks like you have the car working well

Robotboy · 12-05-2011, 08:47 PM

I am just lovin' that chassis! Very very nice work

Duuuuuuuude · 12-05-2011, 09:17 PM

Quote:

Originally Posted by opek

wonderful!

La porte improbable.mp4 - YouTube

Best progress ever!

DRCrawlGood · 12-06-2011, 01:18 PM

Great looking chassis, glad to still see people trying new things.

TotoRax · 12-06-2011, 02:16 PM

Thanks for all you comments, happy that this project interests you

Quote:

Originally Posted by Stormin2u

Your truck is incredible, thats some very nice work. Your link geometry is sexy and the different lower link widths front and rear on the skid is interesting. I would love to take it for a spin.

Thanks, The link geometry is a headache on this project

The problem is the motor to fix in front of tranny (It is an important point of the project to optimize the distribution of the weights, without any ballast, the weight is naturally well distributed 60/40). It's impossible to triangulate the lower link as on the rear. But the upper link are triangulated, because of the position of servo. Thus it is not finally too a problem if the lower link are less triangulated. Moreover this configuration of link is very strong, and supports the shocks of the front axle well.
Another characteristic, the front shock are in semi-droop (30% normal - 60% droop). While with the rear they is normal shock. This shock configuration decreases the torque twist (also helped by a good geometry of the link

)

Stormin2u · 12-06-2011, 04:50 PM

Your link design looks very well thought out and locations are purposeful. It looks like it would perform really well, am I right? The chassis design is also elegant and again well thought out and purposeful but yet minimalistic. The whole thing is a class act, seriously I like your Sporty.

What's it weigh?

TotoRax · 12-07-2011, 09:29 AM

Thanks Stormin2u. Yep, It perform very well, it is probably best the crawler than I build. I take even more pleasure to drive it than my Berg

In fact, I built SportsMann by curiosity, to discover this class. Also to refine my piloting, without artifice (the dig). The dig is very important, but it makes it possible to correct much error of piloting. Without dig, it is necessary to have immediately the good trajectories. And I was very agreeably surprised by the possibilities and the capacities of SportsMann. The passages, on my video, my surprised myself, I did not think of progress to these places (w/o dig)

This is very formative !

It must weigh approximately 2.3 kg (5.07 lrs) RTR, of which 130g (4.6 oz) of ballast to the rear (for 2 wheel) and 160g (5.64 oz) with the front.

Eric Perez · 12-08-2011, 05:05 AM

That there looks very cool. I really like how the skid and the chassis wrap around the tranny. Where did the tranny gears come from? Is the tranny full custom made or is it a modified version that is available for purchase? Once again thanks for sharing this creation with the community. Very original indeed!

stolps · 12-08-2011, 05:15 AM

Tranny is an r2 from RC4WD with a moded case. This is an awesome build, very inspiring with all of the creative ideas. It definitely has the wheels in my head turning.

Nabil · 12-08-2011, 05:59 PM

I think my favorite part of the whole build is that wishbone brace that goes from between the rear lowers up to the chassis and the asymmetrical one that goes from the passenger side up to the front shocks. Very cool!

TotoRax · 12-20-2011, 06:38 PM

Hello,

Some update, hummm... some experimental update

I bought RPM 2 Stage Shock Piston Light Medium RPM80420.
I am curious to test on the rock.

But the most interesting evolution is the upper link... I hope...
I bought a Carbon Fiber Tube 24 .157 OD (4mm). To manufacture the link, it is very simple. I drill the rod ends with 4mm and I encase the carbon tube. Of course, I stick the whole with epoxy adhesive.
The first test, it is impossible to make move the rod ends… But of course, the rocks will be the true judge.
For the weight. 2.5g per link

Each link measures +/-10cm ( 4")

(The aluminum rod ends ball help also a little)

Now, remains that let dry and let's go to the rocks

Stormin2u · 12-20-2011, 07:02 PM

I use the RPM pistons their fun to play with. Love the links especially the weight, nice work sir.

So what's she weigh RTR?

The Video was great to watch your driving was fantastic the last climb and descent is crazy cool. your rig is very sophisticated your quite the engineer/designer.

TotoRax · 12-20-2011, 07:14 PM

With the last weighed, 2070g - 4lbs 9oz RTR. I removed the weights in the rear (100g), finally I prefer without.

TotoRax · 12-20-2011, 07:15 PM

Quote:

Originally Posted by Stormin2u

...The Video was great to watch your driving was fantastic the last climb and descent is crazy cool. your rig is very sophisticated your quite the engineer/designer.

Thanks

sim · 12-20-2011, 08:50 PM

Haha. Glad there's an update on this. Another ingenius idea! If your links survive a weekend of crawling, me and the rest of the world are going to copy your idea.

TotoRax · 12-21-2011, 04:01 PM

Hello,

First test today, not of breakage

But it will be necessary to test on the long run and in more difficult situations.
I used tube, but I think that carbon round would be better.

12-05-2011, 04:07 PM	#1
TotoRax Quarry Creeper Join Date: Feb 2009 Location: French Guiana Posts: 433	Margouillat SportsMann Hello, A sort tread, to present Margouillat frame in version Sportsmann. I recovered the axle of the Matoutou project. The new Tranny. The innovation, it is the skid into 1 parts. The frame and the new mechanic Ti-link Here, a short video of test Thanks

12-08-2011, 05:59 PM	#14
Nabil no talent hack Join Date: Feb 2007 Location: Redwood City Posts: 2,479	I think my favorite part of the whole build is that wishbone brace that goes from between the rear lowers up to the chassis and the asymmetrical one that goes from the passenger side up to the front shocks. Very cool! Last edited by Nabil; 12-08-2011 at 06:02 PM.

12-20-2011, 06:38 PM	#15
TotoRax Quarry Creeper Join Date: Feb 2009 Location: French Guiana Posts: 433	Re: Margouillat SportsMann Hello, Some update, hummm... some experimental update I bought RPM 2 Stage Shock Piston Light Medium RPM80420. I am curious to test on the rock. But the most interesting evolution is the upper link... I hope... I bought a Carbon Fiber Tube 24 .157 OD (4mm). To manufacture the link, it is very simple. I drill the rod ends with 4mm and I encase the carbon tube. Of course, I stick the whole with epoxy adhesive. The first test, it is impossible to make move the rod ends… But of course, the rocks will be the true judge. For the weight. 2.5g per link Each link measures +/-10cm ( 4") (The aluminum rod ends ball help also a little) Now, remains that let dry and let's go to the rocks Last edited by TotoRax; 12-20-2011 at 06:41 PM.

12-20-2011, 07:02 PM	#16
Stormin2u I wanna be Dave Join Date: May 2007 Location: Taylors Falls just hanging with the MNRCRC crew. Posts: 7,843	Re: Margouillat SportsMann I use the RPM pistons their fun to play with. Love the links especially the weight, nice work sir. So what's she weigh RTR? The Video was great to watch your driving was fantastic the last climb and descent is crazy cool. your rig is very sophisticated your quite the engineer/designer. Last edited by Stormin2u; 12-20-2011 at 07:12 PM.

12-20-2011, 07:14 PM	#17
TotoRax Quarry Creeper Join Date: Feb 2009 Location: French Guiana Posts: 433	Re: Margouillat SportsMann With the last weighed, 2070g - 4lbs 9oz RTR. I removed the weights in the rear (100g), finally I prefer without.

12-05-2011, 05:49 PM	#2
opek Rock Crawler Join Date: Jun 2011 Location: San Diego Posts: 698	wonderful! La porte improbable.mp4 - YouTube

12-05-2011, 07:23 PM	#4
Stormin2u I wanna be Dave Join Date: May 2007 Location: Taylors Falls just hanging with the MNRCRC crew. Posts: 7,843	Your truck is incredible, thats some very nice work. Your link geometry is sexy and the different lower link widths front and rear on the skid is interesting. I would love to take it for a spin.

12-05-2011, 07:59 PM	#5
Tanis Keep it real Join Date: Jun 2006 Location: Yakima,WA Posts: 6,532	Nice work, looks like you have the car working well

12-05-2011, 08:47 PM	#6
Robotboy RCC Addict Join Date: May 2009 Location: In the warmth! Posts: 1,163	I am just lovin' that chassis! Very very nice work

12-06-2011, 01:18 PM	#8
DRCrawlGood RCC Addict Join Date: Jun 2008 Location: Amish Buggy PA Posts: 1,100	Great looking chassis, glad to still see people trying new things.

12-06-2011, 04:50 PM	#10
Stormin2u I wanna be Dave Join Date: May 2007 Location: Taylors Falls just hanging with the MNRCRC crew. Posts: 7,843	Your link design looks very well thought out and locations are purposeful. It looks like it would perform really well, am I right? The chassis design is also elegant and again well thought out and purposeful but yet minimalistic. The whole thing is a class act, seriously I like your Sporty. What's it weigh?

12-07-2011, 09:29 AM	#11
TotoRax Quarry Creeper Join Date: Feb 2009 Location: French Guiana Posts: 433	Thanks Stormin2u. Yep, It perform very well, it is probably best the crawler than I build. I take even more pleasure to drive it than my Berg In fact, I built SportsMann by curiosity, to discover this class. Also to refine my piloting, without artifice (the dig). The dig is very important, but it makes it possible to correct much error of piloting. Without dig, it is necessary to have immediately the good trajectories. And I was very agreeably surprised by the possibilities and the capacities of SportsMann. The passages, on my video, my surprised myself, I did not think of progress to these places (w/o dig) This is very formative ! It must weigh approximately 2.3 kg (5.07 lrs) RTR, of which 130g (4.6 oz) of ballast to the rear (for 2 wheel) and 160g (5.64 oz) with the front.

12-08-2011, 05:05 AM	#12
Eric Perez Rock Stacker Join Date: Aug 2005 Location: Dallas Posts: 45	That there looks very cool. I really like how the skid and the chassis wrap around the tranny. Where did the tranny gears come from? Is the tranny full custom made or is it a modified version that is available for purchase? Once again thanks for sharing this creation with the community. Very original indeed!

12-08-2011, 05:15 AM	#13
stolps Quarry Creeper Join Date: Oct 2007 Location: Sheboygan Posts: 326	Tranny is an r2 from RC4WD with a moded case. This is an awesome build, very inspiring with all of the creative ideas. It definitely has the wheels in my head turning.

12-20-2011, 08:50 PM	#19
sim Quarry Creeper Join Date: Apr 2005 Location: Malaysia Posts: 374	Re: Margouillat SportsMann Haha. Glad there's an update on this. Another ingenius idea! If your links survive a weekend of crawling, me and the rest of the world are going to copy your idea.

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12-21-2011, 04:01 PM	#20
TotoRax Quarry Creeper Join Date: Feb 2009 Location: French Guiana Posts: 433	Re: Margouillat SportsMann Hello, First test today, not of breakage But it will be necessary to test on the long run and in more difficult situations. I used tube, but I think that carbon round would be better.

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