Box blade help needed
 

I'm getting ready to build a box blade for my super. My wheel base is about 43" so I am going to make it 43 or 44" wide, I'm thinking make it as small as possible for more efficiency?
I'm thinking of making it 14" tall, 14" deep (front to back).
The biggest concern is the weight. What would be to heavy? 100lbs? 150lbs? I know weight is what is going to help it work but I guess what I am asking is what would be to heavy?

Chip Your cat0 will lift much more then 150 lbs. The heavier it is the better results you'll get. I would bring it out wider then the wheels. Cub used a 40" wide box blade for a 36" wide tire spacing.:TwoCents:

I'm with Duke, I would make it a 48-50 inch. 150-175lbs is where I would try to keep it, proper angle on blade edge should make it more than efficient, if its too heavy and you are going to have trouble picking it up to shake out dirt if it get stuck in it.

Thanks, I'll shoot for 150 -175 and make it 48".

I agree about making it wide; I know if I made it narrower than the wheelbase I would be annoyed. On the second pass I'd have to overlap and that would annoy me. I'd rather have it wider. Like those narrow bucket front loaders on the farmall letter series? Drive me nuts.

Just a though most doors gates and stuff are 3 or 4 feet obviously 3 feet isnt an option to worry over but if you have a place you might travel thats 4 ft might be tight but 47 inches would make it possible. Got a building to clean the manure out of with a 4 ft opening is why it come to my miñd. Good luck and take some pics!

I got started today. Did some horse trading on some steel sheeting.
My question is how far below the bottom should the cutting edge be? 1/2", 1" ? What angle should it be set at? I welded a piece of angle to the bottom to bolt the cutting edge to so now I need to make a cutting edge and fit it before welding on the sides.

The cutting edge should be adjustable and I wouldn't got more then 1/2 slot.:TwoCents:

:TTWWP:

Following. Pics of your cutting edge attachemnt angle orientation would be great

OK, this is where I'm at right now. The height is 14". The total side length is 18", with 2 or 3" on the backside and that would leave about 15 or 16" depth in the box. I haven't welded it up so I have time to change my mind. The width is 46", that was the largest piece of steel I could find ( I did some horse trading, two used tires and $10 for a piece of 38 x 46 x 3/8" diamond plate, :beerchug:) I am having doubts on the weight though. I have figured everything and it looks like it's going to weigh in around 180-200 lbs. Oh well, if it's to much for the cub I can sell it.
I am going to make a cutting edge out of 3/8 flat stock. I will set it at 20 degrees and use welds in place of bolts to hold it in place, I can always cut a weld to lower it. My choice for cutting blades comes down to $$$, a 48" cutting blade is running $60 a piece and i need two. This is a low budget project plus I seriously doubt I will wear out a piece of 3/8 with what I will be doing with it.
Here are some pics, more to come as I progress. I ran out of oxygen and acetylene so can't finish cuts until I get a refill.

http://i46.photobucket.com/albums/f1...psec59a5de.jpg

http://i46.photobucket.com/albums/f1...psd6799f03.jpg

http://i46.photobucket.com/albums/f1...psc262d118.jpg

http://i46.photobucket.com/albums/f1...psc3639328.jpg