Project Mini Hägglund

[Steinbruchsoldat]

Maybe you can train your neighbor and have him do the repetitive drilling and welding for the tracks?

I won`t let him use the drill press. I don`t want to be responsible if his fingers get tangled in the drill bit. I did this myself one time, so i know how dangerous this thing is...

I think you should sell me your van for $20, and toss in free shipping.

:ylsmoke:

Love the build.

Are the tires going to be off center in the tracks? will it put pressure one way or the other and want to throw the tracks?

Yes the tires will be off center, but the big Pistenbully snowcats have them off center too, so i don`t think there will be problems...

Started cutting the tire guides today:

While the saw was cutting i started drilling:

800 holes later:

Then i made a welding jig:

My neighbor grinded the pieces while i started welding:

When we called it a day:

 

[redthies]

Looking good Stein-bot! Look up the "Random pics" thread I put in the fullsize section for some Pisten Bully shots / inspiration!

 

[Steinbruchsoldat]

Thanks. I feel like a robot after making all this this, but it`s finished...

Welded 94 grousers today. I`m missing steel for the last 6, but i`ll get it on monday:

Also got the conveyor belt and plastic for the drive sprockets today:

It`s my birthday tomorrow, so i`ll be happy to finish the first track there...

Can someone make me a drawing for the drive sprockets?

 

[Backroad Explorer]

Well HAPPY BIRTHDAY Steinbruchsoldat!!

 

[AeroNautiCal]

Happy Birthday, Über Engineer!

 

[Steinbruchsoldat]

Thanks guys... :wavey:

First i cut the conveyor belt this morning:

Finished:

Then i started drilling holes:

Finished:

Even my sister helped me today::

Ten i ran out of bolts, but had to place the track to see how it looks:

Also mounted a pair of headlights:

 

[FlatlinesUp]

I hate just posting "Looks great!" type posts, but it Looks Great!

 

[redthies]

Can someone make me a drawing for the drive sprockets?

I can take a pic of a Pisten Bully final drive with the drive cog on. Will that do? Might take a day or so to post it though...

Oh, fröhe gebortstag too! (Sorry if I spelled it wrong. Ute is asleep so I can't ask her ).

 

[78Bronco]

It's tough for a square bar to mesh with a drive sprocket which is why chain has round barrels and bushings. You can buy chain that is better suited to what you are doing and bolt in to your belting. I have yet to see square mesh with round things.

 

[chilliwak]

Happy birthday Steinez, and a congratz on making the Hågglund come so close to completion. When do you think we can see a test run? Cheers, Chilli.

 

[redthies]

It's tough for a square bar to mesh with a drive sprocket.

A snow cats grousers are "square-ish". The tire guides are slightly more rounded, and the square stock Stein has used does have rounded corners so it could work I think. A lot will have to do with the shape of the drive sprocket.

 

[Steinbruchsoldat]

Thanks for your wishes guys... :beer: It should be ready for a test drive next week...

So i made the drive sprocket prototype today. First i drawed it on some paper:

Cut it out and transfered it on wood:

Cut it out:

Fit`s perfect:

This is how i`m going to mount them. Two sprockets on each side, fastened with a bolt through the tubes. I`ll just have to cut the tubes to the right lenght :

 

[FlatlinesUp]

so the tubes are no longer driving on the square tube, but are now just spacers for the gears? Prob run better (guessing) that way

 

[Steinbruchsoldat]

Yes, i`m going with the complete snowcat track style with an appropriate drive sprocket. There`s no way that`d work with the tube style sprockets, but i hought i could incorporate tem n the new ones, and it looks like it`s working great...

 

[VanIsle_Greg]

I like where this new design is going... great work.