Project Mini Hägglund

[Steinbruchsoldat]

First i wasted lot`s of time trying to build a demagnetizer. Well, it doesn`t work yet and i`m pretty pissed off about the wasted time:

Then i started builting the front one of the two missing joints that allow articulation in the vertical plane. Tacked on the joints:

Then i machined the first (thing?):

Fit`s like it is supposed to:

Mocked up the next step:

 

[Dgurley2000]

Forget about the Hagglund. I want to know what tool you're going to buy or build next I'm also curious if you have your next project in mind.... after you finish the Hagglund?

 

[Steinbruchsoldat]

Hmm, next tool on the list is either a oxy/ace setup or a plasma cutter. Or something else i can get a good deal on...

When the Hägglund is finished, and i guess it`ll take me at least another year, then i`ll start the next, improved version...

Today i started with the piece that connects the front vertical and the rotational joint:

Turned the second (thing?) and a washer for it:

This is how it`ll go together:

 

[blaz]

Nice baby mill. I have a vertical bench top mill that does lots of work. I would like a horizontal vertical mill slightly larger than a bridgeport. A TIG welder would be nice too. Dreaming again. LOL.

A vid of this thing moving is what I am looking forward to. :Wow1:

 

[Steinbruchsoldat]

I always wanted a vertical mill and just bought the horizontal one because i didn`t have enough money for a vertical one. I planned to build a vertical milling head for it, but now i just love this thing and never needed a vertical one...

And yes, i probably going to buy a TIG too...

Today`s work:

I also need to change a few things on the rotational joint, so i cut it apart:

 

[Undy]

Stein,

Will the bearings in the joint be replaceable? Especially the ones in picture 4 of your latest post?

Great thread. Thanks for the entertainment.

Cheers,
Paul

 

[Steinbruchsoldat]

I can cut them off and weld on new ones, just like they do it on heavy machinery. But i don't think i'll ever have to replace them...

 

[chilliwak]

Awesome:Wow1:work Steinez! Your fabrication skills are getting better and better. Not that there was anything wrong with what you did previosly, but you are aproaching a very high level of quality in your manufacturing process. I do have a question regarding the joint to the rear Hågglund vehicle. Would it not have been easier to cut the end off a 4by4 front axel that has a round joint at the end for articulation? That way you would have a 360 degree movement with a drive shaft allready inside. I think Dodge and old Toyota axels have the joint that I am thinking of, but not sure. All you would have to do is remove the ball joints that control the up and down movement and then you have 360 degree traverse....... Just my 2 bits worth. Keep up the good work!

 

[Steinbruchsoldat]

I don`t think this would work, because if you cut off the kingpins there`s nothing holding the knuckle in...

Finished both mounting flanges for the rotational joint:

Drilled some holes and tapped them:

Then i started with the rear vertical joint:

Had some help from my neighbor:

Everything together:

 

[bobDog]

Just curious ...... do own your house or do you rent? If you rent I hope you don't have to move often


Sent from my LS670 using Tapatalk 2

 

[Steinbruchsoldat]

I own it. But, i`ll move to Canada in a few years. Not sure what to do with all that stuff then, probably going to rent a container and ship it or something like that...

Big day today, because i finished the articulated joint today. First i machined the parts for the rear vertical joint:

Welded it up:

Everything tacked together:

And welded up:

Putting it together:

With driveshaft:

Lets see all the motions it can do. Starting with 34° steering:

Adding 17° each vertical articulation:

And 40° rotation:

I guess someone is ****ting in his pants if i ever get close to that articulation...

 

[chilliwak]

Super:Wow1:good progress Steinez! I can hardly wait to see how its going to work when you get the rear vehicle finished and you are ready to test drive. Good on you for making it work!

 

[Undy]

Stein,

Very impressive design and fabrication.

If I recall your earlier post/s, weren't you planning to use the Subaru's steering rack for your ram-steer? I notice the front pivot is longer toward the left side of the vehicle. Is this where the steering ram will tie in with the new center joint assembly?

Do you plan to mount the center joint assembly rigidly to the rear car?

 

[Steinbruchsoldat]

Started with the steering today:

Milled down the joint for the ram:

Cut off the rear mounting point:

And welded the two joints (what`s the right word for this?) on:

Looked for a place to mount it:

And started plating the mount:

I think i should built something to catch the coolant:

Everything welded on:

Cut the holes for the mounting bolt:

This is how it goes together:

This square tube needs some more triangulation, any ideas on how to do that? I can`t go higher because of the coupler:

 

[seanz0rz]

plate the ends of the square tube back to the round tube.

basically make a cap for the square tube that extends back onto the round tube. maybe an inch or so wide (25mm) along the round tube so you can weld down in the crack between the new plate and the round tube. that should be strong enough.

also, a flat plate on the bottom of the square tube and the round tubes.