Working on Design for Grizzly Vibrator. Input appreciated!

[David Devuono]

Your welder is fine unless you are welding larger then 1/4 thick metal. Smaller welders will weld thicker material with 035 flux then with any gas\wire settings. Filling up my 90 cubic foot gas bottle is about 70 bucks and it last for about a 10lb roll of wire, so gas +wire is around 90 bucks, vs about 60 bucks for flux cored wire. Perhaps if you are using larger gas bottles it might be cheaper but typically we are talking home use here. I save my gas for doing sheet metal. I will also be building a screen this winter so this thread is timely and the first time I have seen this style of screener. I have spend hours and hours on the net looking too. Rather then change screens, I am looking at a grizzly bar spacing of 1" on top and directing the big rocks away, then a 1/2 inch spaced screen or round tube below. Results I am looking for is a pile of 1/2 to 1 inch rock for weeping tiles etc and 1/2 less sand gravel out the bottom. larger stuff off to one lower side. Guess I will still have to pick out the bigger rocks or crush my screen.

 

[Shield Arc]

Here is a good article by Lincoln about these little machines.

GMAW vs FCAW-S Process

 

[kg7il]

Here is a good article by Lincoln about these little machines.

Very good article. Kinda puts everything I have learned from various places in one article.
I did appreciate the words on prep for Al welding (I'm not there yet).

What it does seem to do, is reinforce that my purchase was probably the right choice for my welding NEEDS.

What I needed was:
Repair of my Hobby Farm Equipment. Outdoors, usually less than 1/4" Portable and cost effective.

What I want is: a metal shop as complete as my woodshop.

Thanks for the help.

 

[snowjoker]

Here is a picture of our grizzy bars at the sand and gravel pit i work at. They are very heavy duty and will tolerate a 600 pound rock easily. I know its way more overkill than you need but the design is what you want to use. This grizzly has 3/4x8 inch flatstock i believe vertical with 1 1/2 inch wide flats welded on them to prevent too much wear when getting smashed by huge rocks.. It does not need to vibrate if you have a steep enough angle. although ours is narrow and conveyor fed a shorter wider version would be just as easy to make.. This is a picture before i spent a few hours inside it welding it because the previous guy who welded on it didnt know what he was doing.. its had darn near a million ton run over it since spring and still hasn't broke yet..

 

[kg7il]

It does not need to vibrate if you have a steep enough angle

Something like that would be great for the first pass to remove any 600 pound rocks I may encounter.

I'll have to get a picture of the ground that I'll be preparing. I might run across a few that are football size, bur most are golf ball to softball size.

Although I have a great use for the rocks removed, it is the remaining dirt, topsoil and fines that I want to recover for the garden.
My first build may be an adjustable bar/frame set at a high angle for use as you describe.

If this doesn't get satisfactory results, I'll add the vibrator.
I want to get to the point that a rototiller can be used each year.
The native ground will cause problems with a disc, plow, tiller or most any other gear.

 

[snowjoker]

Cant wait to see your creation ! If you get screens from a quarry and they have holes in them, which is common , Go to your local hardwware store and get some 100% pure silicon and just plaster it on the hole.. it will outlast your screening days i guarantee it !

 

[David Devuono]

Design pretty much limited by how high you tractor will dump. Mine will likely have to be vibratory because the high end is limited to about 5.5 feet.

 

[kg7il]

My available materials are dictating much of the design.
I used 2" square tube for the support.
This simplifies construction, allows for a pivot and chain to adjust angle.

Since I have no sheet steel, OSB / Plywood will be used as the separators of the rocks and fines.

This is not a marketable work of art, but it's getting the job done.
Pics today as it gets light out and I get back to work.

 

[kg7il]

Design Phase is complete.
Construction is complete.

Follow this project on it's new thread.

http://www.tractorbynet.com/forums/build-yourself/294623-grizzly-has-been-put-work.html#post3512866