Komatsu D475A Bulldozer 1/50 diecast
 

Just had to try building this dozer. Im still working on it :D
http:// <a href="http://s1086.photob...174615_197.jpg[/IMG]
[IMG]http://i1086.photobucket.com/albums/...174615_197.jpg[/IMG]
http:// <a href="http://s1086.photob...111400_224.jpg[/IMG]http:// <a href="http://s1086.photob...135813_446.jpg[/IMG]
[IMG]http://i1086.photobucket.com/albums/...181356_462.jpg[/IMG]
http:// <a href="http://s1086.photob...174615_197.jpg[/IMG]
Ill have some video soon. All i really have to say about building this is get the model you want to build, then take measurements of the what your going to build. Then get batteries, motors and esc's and receiver that will fit. This 1/50 scale is a little bit on the small size.

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http://i1086.photobucket.com/albums/...175819_925.jpg
My video just click the picture.

Re: Komatsu D475A Bulldozer 1/50 diecast
 

Wow! will be following this micro project.
Cheer's, Neil.

Re: Komatsu D475A Bulldozer 1/50 diecast
 

Well unfortunately the 2 servos i salvaged from an old rc sabre helicopter that crashed and burned, wasn't compatible with the GWS 4 channel receiver. Other i get some GWS servos and lift the rock ripper and lift the front blade. I was also thinking of getting firgelli actuators and be able to have a tilt on the front blade, but i wouldn't have a ripper control.
I got to say this dozer has some push!!!
Click the picture it a video.http://i1086.photobucket.com/albums/...170540_960.jpg

Re: Komatsu D475A Bulldozer 1/50 diecast
 

I also need to make a skid plate chassis so the guts dont spill out, it was necessary to cut the bottom out to make some room for the battery and esc and the receiver.

Re: Komatsu D475A Bulldozer 1/50 diecast
 

Cool!
Cheers, Neil.

Re: Komatsu D475A Bulldozer 1/50 diecast
 

That's really cool! Makes me want to try and convert a 1/50 diecast construction model so I can run it on my O scale 1:48 shelf layout.

Re: Komatsu D475A Bulldozer 1/50 diecast
 

Yeah, i plan on converting a dumptruck and a loader at some point. Its just a little expensive to do this, so far this dozer has cost me $320 but im happy with it so far!

Re: Komatsu D475A Bulldozer 1/50 diecast
 

It was tricky but managed to cram everything into the dozer, now i just have to mount the blade to the servos and i should be done!http://i1086.photobucket.com/albums/...181619_661.jpg

Re: Komatsu D475A Bulldozer 1/50 diecast
 

My shiny new skid plate
http://i1086.photobucket.com/albums/...154103_046.jpg

Re: Komatsu D475A Bulldozer 1/50 diecast
 

Well dirt does clog the links, i think ill try running it in potting soil. Got the blade working. Now i just need to make linkage to the ripper. Then some touch up and it will be done.

https://www.youtube.com/watch?v=IxuX...e_gdata_player

Re: Komatsu D475A Bulldozer 1/50 diecast
 

pretty sweet ride very tedious wrk

Re: Komatsu D475A Bulldozer 1/50 diecast
 

Yes it is, the hardest think is cramming all the electronics in the dozer.
Thanks for all the complements guys :)

Re: Komatsu D475A Bulldozer 1/50 diecast
 

Well im not digging the servos lifting the blade, i have to hold the channel to keep the blade up or down. So i am thinking of a new approach ill lift the blade with a motor with a screw and nut and another esc.http://i1086.photobucket.com/albums/...200315_676.jpg

Re: Komatsu D475A Bulldozer 1/50 diecast
 

Ok spent the day looking for micro linear ball drive motors, but they only sell to manufacturing companies, so im out of luck. Time to build my own!

Re: Komatsu D475A Bulldozer 1/50 diecast
 

My thoughts are to use a micro motor for micro helicopters tails motors... connect it to a vary small bold the size as the motor shaft and couple it and then couple the bolt with another shaft in a shaft that covers the motor that looks like a hydraulic piston.

Re: Komatsu D475A Bulldozer 1/50 diecast
 

Its going to get interesting

Re: Komatsu D475A Bulldozer 1/50 diecast
 

Have you considered converting a servo to 360' full rotation, then the esc is built in.
http://rctruckandconstruction.com/sh...egree+rotation
Cheers, Neil.

Re: Komatsu D475A Bulldozer 1/50 diecast
 

That is awsome! I might end up using that technique to lift a bed of a 1/50 dump truck, when i get around to it.

I did find a gearmotor that is 6mm in dia. and a 7mm tube that the gearmotor will slide into the tube. Then using another 6mm tube that will slide in the 7mm tube that will be attached to a nut thats driven by a screw. All i am doing is waiting for the stuff in the mail.

Re: Komatsu D475A Bulldozer 1/50 diecast
 

Here is the motor that will drive my actuator, just waiting on the tubes to put it in.http://i1086.photobucket.com/albums/...165241_958.jpg

Re: Komatsu D475A Bulldozer 1/50 diecast
 

Needs paint, but this dozer is to small for real hydraulics so here the next best way for a realistic look.http://i1086.photobucket.com/albums/...201404_227.jpg

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Re: Komatsu D475A Bulldozer 1/50 diecast
 

If this is strong enough ill try making a front loader this way.
http://i1086.photobucket.com/albums/...204256_970.jpg

Re: Komatsu D475A Bulldozer 1/50 diecast
 

Wow!
Cheers, Neil.

Re: Komatsu D475A Bulldozer 1/50 diecast
 

Ok round two! So had to put off my project for a few years, ok more than a few years. Hey im back at it now. Cool thing is that over time rc equipment and such have gotten smaller! Ive upgraded from a 4 channel to a 6 channel receiver, smaller battery and such plus more. Im still a bit busy in life but im going to start putting in some time and finally finish this little do-da! Really lately been brain storming on how to finish the dozer.
https://i1086.photobucket.com/albums...303_193134.jpg

Re: Komatsu D475A Bulldozer 1/50 diecast
 

Alright got the screw drive actuators glued together... Got to do some touch ups to make it look cleaner.

https://i1086.photobucket.com/albums...308_213725.jpg

Re: Komatsu D475A Bulldozer 1/50 diecast
 

That is awesome!!! Glad to see you're back at it.

I've been wanting to build something tiny also, i know DasMikro has an 8ch and escs much cheaper than the german ones
https://www.tiny4x4.com/das87/das87-...7-2wd-ifa-w50/

Re: Komatsu D475A Bulldozer 1/50 diecast
 

First test of the actuator!

https://i1086.photobucket.com/albums...309_201132.jpg

Re: Komatsu D475A Bulldozer 1/50 diecast
 

Awesome website, ive been checking out a lot of sites like this one. I do have a HO train set im planning on seting up on day. Ive had it sence i was a small boy. I do want to RC most of it, plus there has been a lot of technology that has came out... Especially because of drones craze

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Attachment 6399
Trying to get a video uploaded, youtube wants money and photobucket sucks

Re: Komatsu D475A Bulldozer 1/50 diecast
 

Frizzy, I LOVE this site, thanks for sharing!
https://www.tiny4x4.com/das87/das87-...87-2wd-ifa-w50

Re: Komatsu D475A Bulldozer 1/50 diecast
 

This is an awesome project, it's nice to see you're back to work on it once again!

Re: Komatsu D475A Bulldozer 1/50 diecast
 

Ok got some work done, there is some more work to be details to do and a lot of wiring.

https://i1086.photobucket.com/albums...314_154245.jpg

Re: Komatsu D475A Bulldozer 1/50 diecast
 

Got the ripper servo hooked up.

https://i1086.photobucket.com/albums...314_163951.jpg

Re: Komatsu D475A Bulldozer 1/50 diecast
 

Here i added some brass tubes to slide the tracks to put tension on the tracks.

https://i1086.photobucket.com/albums...314_160258.jpg

Re: Komatsu D475A Bulldozer 1/50 diecast
 

Light test

https://i1086.photobucket.com/albums...314_182051.jpg