New Guy with a project

[clinch670]

Hey Guys,

I am new to the group and thought I would intro myself. I currently model live steam trains in 1/8th scale. After seeing some CAT equipment at Cabin Fever, I thought that a RC dozer would look really good in a scale scene with the trains. I am looking at building a 1955 CAT D9E. I'm not really sure where to begin or how to go about powering this dozer. Since it will be in 1/8 scale I figure I will have room to put just about whatever I need to power it. Any suggestions and advice? Here is a pic of one I want to build.

-clinch670

[bigTdozer]

Nice choice! Well I think I would look at window or whipper motors that are 12 volt awsome choice will it be made of steel also?

[9W Monighan]

I've always wanted a D9G or H working model. Look at Jerry Hall's wooden models on here. 1/8th would make it much more easy to fit the electrics into. You may need to cover the engine compartment to conceal the electrics,or if it had a cab, that gives you room too.
I don't think one of these 1/12th scale 9's have been built yet from Classic Construction Models. Only a prototype shown here.
http://www.ccmodels.com/images/upcoming/D9-web-1.jpg
http://www.ccmodels.com/images/upcoming/D9-frame2.jpg
http://www.ccmodels.com/images/upcoming/D9-frame1.jpg
http://www.ccmodels.com/images/upcoming/machine_2.gif
http://www.ccmodels.com/images/upcoming/machine_3.gif
http://www.ccmodels.com/images/upcoming/diagram.gif
http://www.ccmodels.com/images/upcoming/diagram.gif

[bigTdozer]

I have seen that Don on a D7 on this board lol

[doodlebug]

Take a look at how greg built his D8 http://rctruckandconstruction.com/showthread.php?t=71&highlight=greg&page=3 Start with Post #59, don't worry about high drive, the inside's are the same. These are the motor's that Greg used, I bought some for a 1:8 D4h that I haven't started yet. http://servocity.com/html/25_rpm_offset_gearmotor.html
Cheer's, Neil.

[dirtpusher9]

This must be the week to start scratch builds. I'll be watching this one closely.

Did you have your train at the show, I seen some nice ones?

[clinch670]

I was with Godshall Machining. We had a 2-8-0 locomotive on display. I do mostly trains but I think a couple of dozers to scale would look grreat next to all the other stuff. I need to find some good pics to look at before I begin.

[J Hall]

http://www.youtube.com/watch?v=00eGnftj1k4

Hi Clinch..Above is a utube link to my 18 scale D9E and 1/7 scale d8 2U...The D9 is geared too slow and the D8 is geared a bit too fast.. The D8 is first and the D9 is shown in action towards the end..

I powered both with 90 degree drive auto electric window motors ( right hand and left hand) with the output shaft coming out of the transmission case at the location of the pinion gear on the real machine..I used #25 roller chain to power each final drive bull gear..A Dimention Engineering Super Sabre 25 RC speed control is used to direct the motors..The 12 volt lead acid battery is hidden in the diesel engine block..I will try to find photos taken along the way during the construction process..

I hope this helps..

Jerry

[J Hall]

Here are a couple shots of the process..

[J Hall]

here are a few more..

[J Hall]

and a couple more..
one is the motor and battery cover for a a D8..same principle as the D9..also the D9 pushing 8-10 inches of snow..

[doodlebug]

Wow Jerry, thank's for sharing the picture's, never considered wood for a large r/c project.
Cheer's, Neil.

[clinch670]

Jerry,

Thanks a million for all the pics. Do you have any drawings or info on the D9 dozer? I wish I could find some measurements to start with.

clinch670

[J Hall]

About all I have are some field notes on history paper in pencil after measuring a 19A D9.
If you would like a copy, please send me your mailing address and I will copy them for you..

[clinch670]

Besides what I am getting from Jerry. Does anyone know where some info on a D9 can be found?

[Brel]

Besides what I am getting from Jerry. Does anyone know where some info on a D9 can be found?

http://en.wikipedia.org/wiki/Caterpillar_D9

[J Hall]

Kevin

here is a Utube video made by Diesel Dave of his 19A D9..

http://www.youtube.com/watch?v=d_zXJeifri4

He has several videos of the old D9 and you can select from the menue on right side of the display..
BTW, I sent y our package off this afternoon..


Jerry

[td9clyde]

http://i599.photobucket.com/albums/tt80/Tazanitefoxy/2-8-10newd7pics014.jpg
http://i599.photobucket.com/albums/tt80/Tazanitefoxy/12-19-10014.jpg
http://i599.photobucket.com/albums/tt80/Tazanitefoxy/11-21-10004.jpg
here are some pics of the D7 i built in 1/10scale the D8 and D9 are close but i thought this might help ya a lil

[clinch670]

Jerry Hall. Thank you so much for the box I recieved. I can't wait to start on the D9.

clinch670

[J Hall]

Good luck with the D9...Be sure to keep us informed...