Any Homemade Mini Dozers?

[nikkopepper@yahoo.com]

My brother has one of the Strunk dozers. He is disabled and not using it anymore, but it actually did some real work when he was using it

 

[David Devuono]

This is one of my favorites. It seems to be powerful and fast. Several U-tube videos

YouTube - Aurausta tela-ajoneuvolla 2

 

[David Devuono]

I made chain tracks for this project. As it was made for the snow, steering was not an issue. On dirt its hard to steer with a load of wood. I made the front axle adjustible in order to tension the track. I would in future allow the track to wrap a little more around the tires as it will throw a track from time to time.
YouTube - Powered Wheelbarrow

 

[GT2]

This is one of my favorites. It seems to be powerful and fast. Several U-tube videos

YouTube - Aurausta tela-ajoneuvolla 2

Love the sound of that turbo diesel!
Looked like a lot of fun sliding around in the snow, corse if he had taken the side off that red car it wouldent have been so cool!
Did you notice it had a steering wheel? Wonder how that is set up?

 

[simplicityguy92]

the steering wheel probly just controls the valves that stop/start/reveirse the drive motor

 

[workinprogress]

I have been slowly collecting parts to build a mini dozer for myself. More of a rider mower scale so not a large as the one you are describing. Tracks length on the ground will be around 4.5 ft. I had a question for J J on that at Zturn pump/control (Kanaski DUP7a) from surplus center. Do those calculations account for the double pump? The flow is 6 gpm @1450 psi for each pump.

Just trying to figure it out which way I will go. I have one of those pumps sitting on my bench right now and I may us it for the dozer project or something else.

I am having a little trouble finding a pulley to fit the tapered metric shaft of the pump so any ideas would be great. Right now my only option is a new pulley off a john deere zturn which uses a Kanaski DUP10 pump. Looks like the shaft is the same size.

Thanks

 

[Taylortractornut]

Remember when they changed the co host on Junkyard wars from That rogers lady, She went to a similar show called Full Metal Challenge. Teams brought in alot of homebuiult machinery to race each other in events. Remeber the team that got all the way to the finals to have a transmission problem It was a couple canadian kids that worked in a machine shop. They had i think a 500 CI Caddy motor. the sproket was flame cut and the tracks were thick conveyor belts split and they had 2 inch channel bolted to the them with carriage bolts. I cant think of the guids o nthe inside of the track other than the offset i nthe meta from the channels. It used a 3/4 or 1 ton floating rear end to make it steer. I wished I could have remebered the name of it. It had a cseveral axles on the bottom for bogeys. The tracks looked alot like the ones used on snow tractor conversions.

 

[Iplayfarmer]

the steering wheel probly just controls the valves that stop/start/reveirse the drive motor

I've dabbled with the idea of a yoke or a stearing wheel...trying to make it easier for the kids to operate. It would be set up something like a joystick that controls both valves. The best I've come up with so far is something like the setup in a swather. You have a wheel that also pushes forward and back. With the wheel in a neutral position you could turn it one way or the other without pushing forward or back and you'd go into a zero radius turn.

 

[J_J]

Qorkinprogress,

All I saw was total cu in, and GPM. It could be like you said. I would call Burden and ask their hydraulic guy.

 

[J_J]

The first Struck Magnatracks used belts for fwd and rev , and used brakes to steer. The next generation, used a 4 speed peerless transmission and chains to drive, and brakes to steer. The latest generation of the Magnatracks uses hydraulics to drive and steer. In building something similar to the Magnatracks, you have to consider the HP of the motor, and how much pump can the motor run. Then you have to match up hydraulic wheel motors if you go that route. In considering the motors, you have to know how much weight the motor will have to push to drive, and if you push dirt with it, you will need a larger hydraulic motor. If using the Peerless 4 spd transmission, with sprockets where the wheels would normally bolt on, you then drive the tracks with heavy duty chain, going from say a sprocket of ten teeth to a sprocket of fifty teeth, which will turn the tracks. You can get tracks from many different manufactures, or make your own. As I said before, if I put my Magnatracks in low gear, it just slowly crawls along. I also have a dozer blade and a bucket for mine, and uses electric motors to raise and lower the bucket. My Magnatrack also has a 16 HP Wisconsin engine, with electric start.

 

[JohnDeere4300]

Iplayfarmer,

Why not make your own tracks. Looks pretty straight forward. Build them using dimension of half air in tires. When built, slide them on and inflate tires to tighten up tracks. You would have to lock your steering if putting on a garden tractor. I have a set for my skidsteer, but have not put them on yet. You can order a complete rubber or steel set of tracks for different skidsteers.

J_J

That is a good job on the tracks.

Did you have something to hold it all when you welded the chain up?

 

[J_J]

J_J

That is a good job on the tracks.

Did you have something to hold it all when you welded the chain up?

I am sorry, but I did not intend to imply that I built them. These were on Ebay, the guy will build to order. . However, I could build them if I had a need for them. A shop press and a welder, metal and chain is all you would need. Just figure out the length of steel to cover the track of your tire, plus about 3 in over lap. and weld the chain on at whatever spacing. You could have a flat track, or weld angle iron to the flat cleats. or rebar to the flat cleats.

 

[JohnDeere4300]

I am sorry, but I did not intend to imply that I built them. These were on Ebay, the guy will build to order. . However, I could build them if I had a need for them. A shop press and a welder, metal and chain is all you would need. Just figure out the length of steel to cover the track of your tire, plus about 3 in over lap. and weld the chain on at whatever spacing. You could have a flat track, or weld angle iron to the flat cleats. or rebar to the flat cleats.

OK,

I understand now.

I just figured you built them.__I seen some other things you built before.

 

[simplicityguy92]

you can build tracks using roller chain and flat bar. theres thread called another minidozer on machine builders.net you should check out

 

[woodlandfarms]

You saw all of this stuff, right?

YouTube - How to build a 2/5 th scale SHERMAN Tank. part 1

Scaled Tanks: News

 

[Iplayfarmer]

All this brainstorming about tracks has given me some ideas. I've liked the positive engagement that roller chain and sprockets give, but I like the idea of rubber treads because of the minimal damage to driveways and roads. I'm thinking about flat bar welded to roller chain with rubber tread bolted to the flat bar. The rubber tread could be cut from sections of R4 tires. It seems like the best of all worlds.

 

[forgeblast]

1/5 Scale Sherman Tank this looks great. I think any kid would love one.

 

[Iplayfarmer]

1/5 Scale Sherman Tank this looks great. I think any kid would love one.

I love that one too. I guess the guy got some kind of a "Best Dad" award for his creation.

I like the remote control option. I keep thinking to myself that it could be done with some solenoid hydraulic valves and some relays. I haven't quite figured out the throttle yet, but I'm sure there are ways to do it.

I love thinking about crazy stuff like that. One of my favorite threads to date on TBN was the "craziest build ideas" thread. I was a little dissapointed when it shifted from future crazy plans to reminiscence of childhood follies, but it was still a great thread.

 

[2manyrocks]

I hope that the Sherman tank has some covers for the chain drive mechanism inside the tank.

The tracked wheelbarrow is something else. How did you make it?

Some of the newer Gravelys had independent brakes on each axle. Maybe you could make the drive assembly out of one of them, but it would be heavy.

 

[2manyrocks]

Another link to a homemade mini dozer(it says band saw, but there are two dozers in the middle of the link): Homemade Band Sawmill Plans