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  #1101  
Old 11-03-2015, 09:27 PM
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Default Re: Great Dane excavating co.

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Originally Posted by RCP57 View Post

Please note that I have refrained from commenting on certain posts....
Atta boy Reg! I'd like you to stick around for awhile.
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  #1102  
Old 11-03-2015, 09:31 PM
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Default Re: Great Dane excavating co.

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Wow, that's just super! The tire looks OK too I guess.

Seriously, that looks fantastic for a first attempt! It's too bad the materials cost so much because I'm sure if you built a few more they would be perfect before too long. Keep up the great work!

Please note that I have refrained from commenting on certain posts....
Yeah, I see the possibility of a reprimand. Lol!!!

And yes this isn't on the cheep side. I did look at other materials but longevity won out. And went with this type. I really didn't spent much time with the part prior to making the mold. Figured equipment tire a few blemishes,,,,, I think I'm going to start working on a two piece rim and the axle next. Figure if a design change needs to happen better not make them all. I'm trying to make the weight of the truck on the axle and not on the motor shaft. Like a post of joes when he was building the adt. Any idea where to source 1 1/2 I d bearings that are not much bigger on the o.d.? And cheep?
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  #1103  
Old 11-03-2015, 09:34 PM
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Default Re: Great Dane excavating co.

Are you planning to run two of those planetary motors in the back ground of that one picture? I have one of them in the rear of my Tigercat(smaller motor in front) and it works pretty well. I'm running 165rpm motor with a 2.6:1 axle ratio and the speed is on the high end of usable with a nearly 8" tire. It could stand to have more power though. I would guess you will want this to be in the 30-40rpm range if you are using a direct drive so those motors would have more torque? What height are these tires again? KP used one big planetary motor in his 1/12 Kamatsu truck so two of these little guys should be close.
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  #1104  
Old 11-03-2015, 09:37 PM
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Default Re: Great Dane excavating co.

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Atta boy Reg! I'd like you to stick around for awhile.
I don't want everyone to think I'm a rude boy.
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  #1105  
Old 11-03-2015, 09:37 PM
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Default Re: Great Dane excavating co.

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It don't take long and the tires aren't black anyway. More of a grey tone afterawhile.
Hydraulic steering might not be a bad idea for this beast......so, handmade dump cylinders, soon to be steering.....your almost there! All that's left is make the worlds smallest nitrogen charged suspension cylinders!

Something tells me the motors are gonna run the same price as the mad cat motors?
Why not? Lol!!! And to think this was going to be a relative easy build!!!! Everyone says never underestimate yourself? I always overestimate!!! I did pick up some fairly inexpensive planetary gear head motors from servo city. 118 rpm might be a little slow. They use a 540size motor (I think) I'm basing the drive system on them. Cheep enough to possibly replace with faster. Hard part is trying to secure them and build the axle so weight of machine and payload is on axle not on 6mm motor shaft.
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  #1106  
Old 11-03-2015, 09:39 PM
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Default Re: Great Dane excavating co.

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Originally Posted by RCP57 View Post
Are you planning to run two of those planetary motors in the back ground of that one picture? I have one of them in the rear of my Tigercat(smaller motor in front) and it works pretty well. I'm running 165rpm motor with a 2.6:1 axle ratio and the speed is on the high end of usable with a nearly 8" tire. It could stand to have more power though. I would guess you will want this to be in the 30-40rpm range if you are using a direct drive so those motors would have more torque? What height are these tires again? KP used one big planetary motor in his 1/12 Kamatsu truck so two of these little guys should be close.
Give me a min, I'll go look.
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  #1107  
Old 11-03-2015, 09:44 PM
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Default Re: Great Dane excavating co.


Yup these should work?
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  #1108  
Old 11-03-2015, 09:46 PM
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Default Re: Great Dane excavating co.

that little motor for that big rig LOL!!!
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  #1109  
Old 11-03-2015, 09:49 PM
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Default Re: Great Dane excavating co.

Lol, picked them up for another project,



These are what I'm planning on using. I'm planning on running them inside the axle. So two in the rear. And was also thinking of using some radio mixing to control them independently. Act as a locking axle or slip for tight turning. So you think 118 rpm at axle may be on the fast side?
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  #1110  
Old 11-03-2015, 09:52 PM
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Default Re: Great Dane excavating co.

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that little motor for that big rig LOL!!!
Haha got ya, check your mail!!!
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  #1111  
Old 11-03-2015, 09:55 PM
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Default Re: Great Dane excavating co.

You want it to be able to do this right?...https://youtu.be/LtbxUR9raN0?list=PL...PKlAqXQU81-vMh This has the 165rpm planetary in the rear. Motor is almost stalled but tires are slipping on rims.

I looked but none of the videos show it's speed very well. This is with two 152rpm gutless motors driving the axles(2.6:1)... https://www.youtube.com/watch?v=rAHZ...PKlAqXQU81-vMh

Last edited by RCP57; 11-03-2015 at 09:58 PM.
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  #1112  
Old 11-03-2015, 09:56 PM
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Default Re: Great Dane excavating co.

Quote:
Originally Posted by Supermario View Post
It don't take long and the tires aren't black anyway. More of a grey tone afterawhile.
Hydraulic steering might not be a bad idea for this beast......so, handmade dump cylinders, soon to be steering.....your almost there! All that's left is make the worlds smallest nitrogen charged suspension cylinders!

Something tells me the motors are gonna run the same price as the mad cat motors?
https://www.servocity.com/html/118_r...l#.VjlzPHA8KrU
$40 , Catt motors another "0" and then some
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  #1113  
Old 11-03-2015, 09:59 PM
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Default Re: Great Dane excavating co.

LOL!!!! wow you just wrong!!
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  #1114  
Old 11-03-2015, 10:02 PM
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Default Re: Great Dane excavating co.

you got mail.....
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  #1115  
Old 11-03-2015, 10:09 PM
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Default Re: Great Dane excavating co.

Now I feel like I am missing out on the "special" pictures...
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  #1116  
Old 11-03-2015, 10:13 PM
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Default Re: Great Dane excavating co.

Just a fist full of joy,, go ahead mark load up reg's mailbox.
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  #1117  
Old 11-03-2015, 10:19 PM
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Default Re: Great Dane excavating co.

I feel like my computer might need penicillin now
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  #1118  
Old 11-03-2015, 10:20 PM
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Default Re: Great Dane excavating co.

http://rs1152.pbsrc.com/albums/p497/...d-out.jpg~c200

the look on your face after opening a email from RW
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  #1119  
Old 11-03-2015, 10:27 PM
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Default Re: Great Dane excavating co.

I think this best represents my eyes and the picture sent all in one.
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  #1120  
Old 11-03-2015, 10:46 PM
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Default Re: Great Dane excavating co.

Cooper

Great tire for first try, my first one was right on then I got cocky and 2cd one was a disaster, keep it up

Earl
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