RCCrawler Forums

bipolarcrawler · 05-02-2005, 11:59 AM

new to maxx crawlin,but not the sport,i need some info.the last crawler i built was 10 years ago out of a tamayia brusier,and just linked up a couple of old car tranny/rearends for gear reduction.ive been collecting info here for my new build which will be out of my new e maxx.im seeing this gd600 gear reduction,but i allso seen some one suggest a lathe 55t(witch is what i have planning on the evx mod)and running a 9 to 72 gear combo.IS THE GD NESSASARY,or worth the hassle of fab?im very mechanical,build my own stuff typically so fabs not a problem,but do i need one,or will it just be nice to have?lots of good info here on crawlin maxxes though!!crawlin in the hills of oregon

"im triing to finish,but forgot what i have done"

TwistedCreations · 05-02-2005, 12:07 PM

its not a must, but they are very nice

i used to never run one, but now that i have, i will always have one.they increase runtimes also

a 55t lathe w/ 9t/72combo like you want will work just fine.it will be as slow as a walk. when mine was setup like that, i would get about 50-60 mins runtime. now that i have a gd600 on, i get right at 1 1/2 hr. runtime.

the GD600 is a piece of cake to install. there is really no need to fab anything up. the hardest part of the whole thing is turning down the shaft. you can either get someone on the board who has a lathe to turn it down for ya or you can do it yourself with a dremel or something( be very careful though)..

bipolarcrawler · 05-02-2005, 12:17 PM

really the shaft was my only concern.any lathe owners in the portland area???hey twisted can you take a look at the evx mod thread and answer that issue for me on adding th rx for 4ws.this site is pretty sweet,i was at a loss for ideas when it came to the maxx as a crawler.hey one that evx deal amm i using the 3000 bat.still with one motor?(1 original e maxx bat...mine3000mah nimh)

TwistedCreations · 05-02-2005, 12:29 PM

yes i run 3000 packs also. I'm pretty sure you could possibly PM Bender or JIA and they may do it for ya. if you do have it turned down, have them turn it down all the way to the bearing. you can shave off the black plastic piece that sticks out on the 600. that way you will have a flush mount, instead of having to drill out the motor plate

JasonInAugusta · 05-02-2005, 01:03 PM

Quote:

Originally Posted by TwistedCreations

its not a must, but they are very nice

i used to never run one, but now that i have, i will always have one.they increase runtimes also

a 55t lathe w/ 9t/72combo like you want will work just fine.it will be as slow as a walk.

I think a 27 turn Johnson is better suited to a GD-600 with a 9 (or 8 )/72 pinion/spur ratio.

The lathe coupled to a GD and 8/72 is slow as crap...no wheel speed.

TwistedCreations · 05-02-2005, 01:05 PM

your right, i would never run a lathe with a gd600. i forgot to mention that if he did get one,to go with a different motor- like a reversed Magnetic Mayham motor

05-03-2005, 06:22 PM

how much does the shaft of the gd-600 have to be trimmed down?

BigTex · 05-03-2005, 06:45 PM

You can also drill out the pinion, thats what I did. Get a 15tooth traxxas pinion and drill it out with a 5mm drill, there is still plenty of threads for the set screw.

TwistedCreations · 05-03-2005, 08:43 PM

yeah but if that is not a low enough gear, you cant drill out a 12 t pinion. much easier to shave the shaft down...

not sure how much, but i think its about half. I think JIA would charge $5 or $10 to shave it down :? not sure, you would have to PM him.he should just order a bunch and have them down and sell then (hint hint

)

bipolarcrawler · 05-04-2005, 02:43 PM

for all the info guys...big help.im only running the lathe without gd.if i get one i was gunna try the mm motor.

corkysk8 · 05-04-2005, 06:15 PM

[QUOTE=bandit crawler]how much does the shaft of the gd-600 have to be trimmed down?[/QUOTE

After mounting my GD-600 to the motor mount w/ the motor hooked to the esc,
I used the motors power to turn the shaft . I took a flat metal file and use it to
grind down the shaft. As said previously (by someone else) be very careful, because the shaft grinds down quickly

mike · 05-04-2005, 06:19 PM

Quote:

Originally Posted by bandit crawler

how much does the shaft of the gd-600 have to be trimmed down?

the shaft needs to be 1/8" in diamiter

toyofast · 05-04-2005, 08:23 PM

Quote:

Originally Posted by mike

the shaft needs to be 1/8" in diamiter

Or 3mm, right? Just depends on if you like metric or standard(US) measurements.

bipolarcrawler · 05-09-2005, 08:33 PM

[QUOTE=corkysk8]

Quote:

Originally Posted by bandit crawler

how much does the shaft of the gd-600 have to be trimmed down?[/QUOTE

After mounting my GD-600 to the motor mount w/ the motor hooked to the esc,
I used the motors power to turn the shaft . I took a flat metal file and use it to
grind down the shaft. As said previously (by someone else) be very careful, because the shaft grinds down quickly

that i can do,nice mcgyver corkysk8

bipolarcrawler · 05-10-2005, 10:50 PM

well after the rain i got to run it for the first time...im pretty happy since i just combined the best of the maxx to my old crawler.im working on a new tube chassis,but had to build somthing quik to play with(notice flaws/bugs)so heres some pics...hope they come up i sux at this.guess i cant sorry guys ill figure out why

RSI · 05-12-2005, 08:13 AM

imo that i run a 15t pinion on a gd and a 600 motor and it runs perfeclty i still get wheel speed but not very much i think i might going even higher pinion.....

ryan

Alcrawler · 05-23-2005, 06:24 PM

I have a magentic mayham motor is the Great Planes ElectriFly Gearbox T400 3:1 Ratio BB better than the gp600 ???

and I cant find it in my 2005 book?

05-02-2005, 11:59 AM	#1
bipolarcrawler Rock Stacker Join Date: May 2005 Location: hills Posts: 75	is the gd600 a must? new to maxx crawlin,but not the sport,i need some info.the last crawler i built was 10 years ago out of a tamayia brusier,and just linked up a couple of old car tranny/rearends for gear reduction.ive been collecting info here for my new build which will be out of my new e maxx.im seeing this gd600 gear reduction,but i allso seen some one suggest a lathe 55t(witch is what i have planning on the evx mod)and running a 9 to 72 gear combo.IS THE GD NESSASARY,or worth the hassle of fab?im very mechanical,build my own stuff typically so fabs not a problem,but do i need one,or will it just be nice to have?lots of good info here on crawlin maxxes though!!crawlin in the hills of oregon "im triing to finish,but forgot what i have done"

05-02-2005, 12:17 PM	#3
bipolarcrawler Rock Stacker Join Date: May 2005 Location: hills Posts: 75	thanks twisted really the shaft was my only concern.any lathe owners in the portland area???hey twisted can you take a look at the evx mod thread and answer that issue for me on adding th rx for 4ws.this site is pretty sweet,i was at a loss for ideas when it came to the maxx as a crawler.hey one that evx deal amm i using the 3000 bat.still with one motor?(1 original e maxx bat...mine3000mah nimh)

05-04-2005, 02:43 PM	#10
bipolarcrawler Rock Stacker Join Date: May 2005 Location: hills Posts: 75	thanks for all the info guys...big help.im only running the lathe without gd.if i get one i was gunna try the mm motor.

05-04-2005, 06:15 PM	#11
corkysk8 Rock Crawler Join Date: Apr 2005 Location: Monroe, Louisiana Posts: 550	How I ground down my GD-600 shaft [QUOTE=bandit crawler]how much does the shaft of the gd-600 have to be trimmed down?[/QUOTE After mounting my GD-600 to the motor mount w/ the motor hooked to the esc, I used the motors power to turn the shaft . I took a flat metal file and use it to grind down the shaft. As said previously (by someone else) be very careful, because the shaft grinds down quickly

05-10-2005, 10:50 PM	#15
bipolarcrawler Rock Stacker Join Date: May 2005 Location: hills Posts: 75	here she is in prototype well after the rain i got to run it for the first time...im pretty happy since i just combined the best of the maxx to my old crawler.im working on a new tube chassis,but had to build somthing quik to play with(notice flaws/bugs)so heres some pics...hope they come up i sux at this.guess i cant sorry guys ill figure out why

05-02-2005, 12:07 PM	#2
TwistedCreations Colt Python/SR9c Join Date: Feb 2004 Location: out in the shop, reloading ammo! Posts: 8,626	its not a must, but they are very nice i used to never run one, but now that i have, i will always have one.they increase runtimes also a 55t lathe w/ 9t/72combo like you want will work just fine.it will be as slow as a walk. when mine was setup like that, i would get about 50-60 mins runtime. now that i have a gd600 on, i get right at 1 1/2 hr. runtime. the GD600 is a piece of cake to install. there is really no need to fab anything up. the hardest part of the whole thing is turning down the shaft. you can either get someone on the board who has a lathe to turn it down for ya or you can do it yourself with a dremel or something( be very careful though)..

05-02-2005, 12:29 PM	#4
TwistedCreations Colt Python/SR9c Join Date: Feb 2004 Location: out in the shop, reloading ammo! Posts: 8,626	yes i run 3000 packs also. I'm pretty sure you could possibly PM Bender or JIA and they may do it for ya. if you do have it turned down, have them turn it down all the way to the bearing. you can shave off the black plastic piece that sticks out on the 600. that way you will have a flush mount, instead of having to drill out the motor plate

05-02-2005, 01:05 PM	#6
TwistedCreations Colt Python/SR9c Join Date: Feb 2004 Location: out in the shop, reloading ammo! Posts: 8,626	your right, i would never run a lathe with a gd600. i forgot to mention that if he did get one,to go with a different motor- like a reversed Magnetic Mayham motor

05-03-2005, 06:22 PM	#7
bandit crawler Guest Posts: n/a	how much does the shaft of the gd-600 have to be trimmed down?

05-03-2005, 06:45 PM	#8
BigTex Pebble Pounder Join Date: Apr 2004 Location: Aurora Posts: 125	You can also drill out the pinion, thats what I did. Get a 15tooth traxxas pinion and drill it out with a 5mm drill, there is still plenty of threads for the set screw.

05-03-2005, 08:43 PM	#9
TwistedCreations Colt Python/SR9c Join Date: Feb 2004 Location: out in the shop, reloading ammo! Posts: 8,626	yeah but if that is not a low enough gear, you cant drill out a 12 t pinion. much easier to shave the shaft down... not sure how much, but i think its about half. I think JIA would charge $5 or $10 to shave it down :? not sure, you would have to PM him.he should just order a bunch and have them down and sell then (hint hint )

05-12-2005, 08:13 AM	#16
RSI Rock Crawler Join Date: Feb 2004 Location: The Gay NorthWest Posts: 503	imo that i run a 15t pinion on a gd and a 600 motor and it runs perfeclty i still get wheel speed but not very much i think i might going even higher pinion..... ryan

05-23-2005, 06:24 PM	#17
Alcrawler Pebble Pounder Join Date: Mar 2005 Location: North Alabama Posts: 162	will the Great Planes ElectriFly Gearbox T400 3:1 Ratio BB work ? I have a magentic mayham motor is the Great Planes ElectriFly Gearbox T400 3:1 Ratio BB better than the gp600 ??? and I cant find it in my 2005 book?

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