RCCrawler Forums

DarkSoul · 12-11-2008, 08:35 PM

So I finally went and picked up a Losi MRC, quite a change, normally I am into large scale rigs, so I am used to big and fast, so I seemed to have gone the complete polar opposite, and went for small and slow.

With the help of some tutorials here on the board, I have pretty much redone the whole thing, the difference in how it handles is night and day from stock, so thanks to all the guys that had "How-To's" for the MRC.

So I started by tearing the whole thing down and replacing the plastic spools with the Losi metal spools-

Also installed the new Losi MRC aluminum shocks, axle shafts and hubs both front and rear, also while I had all that torn apart, I flipped the transmission, this freed up some room for the new 850mah Lipo battery that I strapped to the remainder of the radio plate. The battery is so light, that I don't think it added/detracted anything too noticeable to the CG -

Also while I had the chassis taken apart, I took some time to add a UHMW skid to the bottom of the chassis plate for extra slickness, and also added a strip of the UHMW to each axle case-

On the front axle, I swamped in a HiTech MG85 servo with an aluminum servo arm with the pivot facing backwards for a great increase in clearance compared to the stock servo saver (still have to grind down the threaded section of that ball). This was a very close install, there is just enough room for the servo to take steering to full lock before the stering linakge hits the servo case, I would say about a MM of clearance

. Also added 1/2 ounce to the end of each axle, 1/2 ounce to the top of the servo (in hindsight, there is enough room under the servo mount to attach some there as well), and there is 3 oz. in each wheel in the front, and 1.5 oz. in each rear wheel.

On the rear axle, I installed the ESC on the servo mount, and then installed the Rx on the center 3rd link. While messing with the rear end, I put in the Losi 30º bent links for a little more clearance.

Here is a shot from the top so you can see battery placement and, well, pretty much everything else-

A shot next to one of my big RC's, quite the size difference-

JOOTZ · 12-11-2008, 08:56 PM

good mods, UHMW-where you find that ?

fishh8me · 12-11-2008, 09:03 PM

DITTO...UHMW....what the hell is that ? and where the hell is it ? Nice to see you here, ;ove your 5t parts!!!

DarkSoul · 12-11-2008, 09:06 PM

Quote:

Originally Posted by JOOTZ

good mods, UHMW-where you find that ?

Its adhesive backed UHMW "ultra high molecular weight polyethylene" (swear to god) you can get it through McMasters -

http://www.mcmaster.com/ , the part number is 1441T71

This is the thinner stuff that I linked to (.022), I have the .032 which is a little thick, its harder to get it to wrap around the radius of the skid plate. Its extremely slippery, and very scratch resistant. Works great on anything you want to be slick.

JOOTZ · 12-11-2008, 09:12 PM

Quote:

Originally Posted by DarkSoul

Its adhesive backed UHMW "ultra high molecular weight polyethylene" (swear to god) you can get it through McMasters -

www.mcmasters.com , the part number is 1441T71

This is the thinner stuff that I linked to (.022), I have the .032 which is a little thick, its harder to get it to wrap around the radius of the skid plate. Its extremely slippery, and very scratch resistant. Works great on anything you want to be slick.

there could be a thousand uses for that stuff, thanks for the link bro.

JOOTZ · 12-11-2008, 09:21 PM

on second thought i tried that link and didnt find nada.

racenut123 · 12-11-2008, 09:57 PM

Hey Ted! You used my idea using the chassis protector material.Works really good on the rocks for sure.See you next Wednesday?

John

DarkSoul · 12-11-2008, 11:07 PM

The second I opened the box for the crawler, I new I would be using some of this stuff for it, seeing it on yours just confirmed it

. I had a bunch left over from covering the bottom of the chassis on my new FG 4wd buggy, but like I said above, I think I really need the thinner stuff for the small crawler.

JOOTZ, go to the McMasters link and then enter the part number 1441T71 in the search box.

Sonny · 12-12-2008, 03:03 AM

Quote:

Originally Posted by racenut123

Hey Ted! You used my idea using the chassis protector material.Works really good on the rocks for sure.See you next Wednesday?

John

Wouldn't it make the rocks too slippery?!

Joat · 12-12-2008, 04:09 AM

Quote:

Originally Posted by DarkSoul

Its adhesive backed UHMW "ultra high molecular weight polyethylene" (swear to god) you can get it through McMasters -

www.mcmasters.com , the part number is 1441T71

This is the thinner stuff that I linked to (.022), I have the .032 which is a little thick, its harder to get it to wrap around the radius of the skid plate. Its extremely slippery, and very scratch resistant. Works great on anything you want to be slick.

http://www.mcmaster.com/

It's cutting board material, but did not know it came adhesive backed

Pdog7 · 12-12-2008, 07:40 AM

Nice build. Interesting battery placement, I have never seen it placed there before.

binaryterror · 12-12-2008, 08:43 AM

You can also buy the same material in sheets made by Associated as Chassis Protector: http://www3.towerhobbies.com/cgi-bin...?&I=LXSXV1&P=7

whodaman11 · 12-12-2008, 10:47 AM

Quote:

Originally Posted by DarkSoul

The second I opened the box for the crawler, I new I would be using some of this stuff for it, seeing it on yours just confirmed it

. I had a bunch left over from covering the bottom of the chassis on my new FG 4wd buggy, but like I said above, I think I really need the thinner stuff for the small crawler.

JOOTZ, go to the McMasters link and then enter the part number 1441T71 in the search box.

I typed that number in the search box to order some and it came up with lots of related search items like lockers, o rings, shelving but no UHMW...

DarkSoul · 12-12-2008, 11:36 AM

There should be a side bar on the main screen with 2 tabs, one says "Find Product" and the other says "Build Order" on the "Find Product" tab in the window, type in that part number, and you should get it.

-EDIT-

My original link was bad, sorry, fixed it.

JOOTZ · 12-12-2008, 11:37 AM

Quote:

Originally Posted by Joat

http://www.mcmaster.com/

It's cutting board material, but did not know it came adhesive backed

that was a better link, put the order in thanks Joat

racenut123 · 12-12-2008, 12:18 PM

Quote:

Originally Posted by Sonny

Wouldn't it make the rocks too slippery?!

LOL,yeah,it works quite nicely on the pumpkins.I actually used a sharpie marker to see exactly where the rocks were hitting the pumpkin/skid/chassis protector material.The chassis protector helped quite a bit on getting the rig to pivot easier in tight spaces while hung up.Just an observation after a back to back comparison on the same course setup.

NiCk- · 12-12-2008, 02:51 PM

Looks good. Great job

Losi6821 · 12-12-2008, 10:21 PM

Looks great.. Hope you dont mind but Im barrowing your idea and placed an order for the same material you have on the skid plate.. ... The UHMV stuff.. looks cool and should def work for US all..

Thanks again for the heads up.. Had no issues with the site that you provided..

Thanks

Justin
LOSI6821

monsterman · 12-21-2008, 02:12 PM

Well I've been a member lurking for awhile around here but after talking to and seeing DarkSoul's LMRC I am now hooked, just so ya know mine is on order at the shop DS!! Thanks for opening up another addiction in my RC World

I dug your build from the first time I saw the pictures, going to have to get some of those mods done to mine right out of the box too. Ordering servos soon.

12-11-2008, 08:35 PM	#1
DarkSoul Pebble Pounder Join Date: Dec 2008 Location: San Jose Posts: 197	My first MRC build So I finally went and picked up a Losi MRC, quite a change, normally I am into large scale rigs, so I am used to big and fast, so I seemed to have gone the complete polar opposite, and went for small and slow. With the help of some tutorials here on the board, I have pretty much redone the whole thing, the difference in how it handles is night and day from stock, so thanks to all the guys that had "How-To's" for the MRC. So I started by tearing the whole thing down and replacing the plastic spools with the Losi metal spools- Also installed the new Losi MRC aluminum shocks, axle shafts and hubs both front and rear, also while I had all that torn apart, I flipped the transmission, this freed up some room for the new 850mah Lipo battery that I strapped to the remainder of the radio plate. The battery is so light, that I don't think it added/detracted anything too noticeable to the CG - Also while I had the chassis taken apart, I took some time to add a UHMW skid to the bottom of the chassis plate for extra slickness, and also added a strip of the UHMW to each axle case- On the front axle, I swamped in a HiTech MG85 servo with an aluminum servo arm with the pivot facing backwards for a great increase in clearance compared to the stock servo saver (still have to grind down the threaded section of that ball). This was a very close install, there is just enough room for the servo to take steering to full lock before the stering linakge hits the servo case, I would say about a MM of clearance . Also added 1/2 ounce to the end of each axle, 1/2 ounce to the top of the servo (in hindsight, there is enough room under the servo mount to attach some there as well), and there is 3 oz. in each wheel in the front, and 1.5 oz. in each rear wheel. On the rear axle, I installed the ESC on the servo mount, and then installed the Rx on the center 3rd link. While messing with the rear end, I put in the Losi 30º bent links for a little more clearance. Here is a shot from the top so you can see battery placement and, well, pretty much everything else- A shot next to one of my big RC's, quite the size difference-

12-11-2008, 08:56 PM	#2
JOOTZ RCC Addict Join Date: Nov 2008 Location: never been Posts: 1,317	good mods, UHMW-where you find that ?

12-11-2008, 09:03 PM	#3
fishh8me Rock Stacker Join Date: Nov 2008 Location: nor cal Posts: 52	DITTO...UHMW....what the hell is that ? and where the hell is it ? Nice to see you here, ;ove your 5t parts!!!

12-11-2008, 09:21 PM	#6
JOOTZ RCC Addict Join Date: Nov 2008 Location: never been Posts: 1,317	on second thought i tried that link and didnt find nada.

12-11-2008, 09:57 PM	#7
racenut123 Pebble Pounder Join Date: Mar 2006 Location: newark Posts: 114	Hey Ted! You used my idea using the chassis protector material.Works really good on the rocks for sure.See you next Wednesday? John

12-11-2008, 11:07 PM	#8
DarkSoul Pebble Pounder Join Date: Dec 2008 Location: San Jose Posts: 197	The second I opened the box for the crawler, I new I would be using some of this stuff for it, seeing it on yours just confirmed it . I had a bunch left over from covering the bottom of the chassis on my new FG 4wd buggy, but like I said above, I think I really need the thinner stuff for the small crawler. JOOTZ, go to the McMasters link and then enter the part number 1441T71 in the search box.

12-12-2008, 07:40 AM	#11
Pdog7 TN State Champ 11,12,13 Join Date: Oct 2008 Location: KTM Talk.com Posts: 1,796	Nice build. Interesting battery placement, I have never seen it placed there before.

12-12-2008, 08:43 AM	#12
binaryterror I wanna be Dave Join Date: Jan 2004 Location: Detroit Posts: 3,583	You can also buy the same material in sheets made by Associated as Chassis Protector: http://www3.towerhobbies.com/cgi-bin...?&I=LXSXV1&P=7

12-12-2008, 11:36 AM	#14
DarkSoul Pebble Pounder Join Date: Dec 2008 Location: San Jose Posts: 197	There should be a side bar on the main screen with 2 tabs, one says "Find Product" and the other says "Build Order" on the "Find Product" tab in the window, type in that part number, and you should get it. -EDIT- My original link was bad, sorry, fixed it.

12-12-2008, 02:51 PM	#17
NiCk- Rock Stacker Join Date: Sep 2008 Location: Memphis Posts: 56	Looks good. Great job

12-12-2008, 10:21 PM	#18
Losi6821 Quarry Creeper Join Date: Oct 2008 Location: Folsom Posts: 215	Looks great.. Hope you dont mind but Im barrowing your idea and placed an order for the same material you have on the skid plate.. ... The UHMV stuff.. looks cool and should def work for US all.. Thanks again for the heads up.. Had no issues with the site that you provided.. Thanks Justin LOSI6821

Sponsored Links

12-21-2008, 02:12 PM	#19
monsterman Pebble Pounder Join Date: May 2005 Location: Long Island NY Posts: 191	Well I've been a member lurking for awhile around here but after talking to and seeing DarkSoul's LMRC I am now hooked, just so ya know mine is on order at the shop DS!! Thanks for opening up another addiction in my RC World I dug your build from the first time I saw the pictures, going to have to get some of those mods done to mine right out of the box too. Ordering servos soon.

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Thread: My first MRC build