Setting quilt together with on point and straight on blocks
 

I have 18 Mariner's Compass blocks 12" and one large 24" Marine's Compass block. I want to put the 24" block in the center of the King sized quilt and then rows of the 12" blocks BUT I want to place one block straight up, the next on point, and so on so that row #1 has straight, point, straight, point, until there are 5 blocks across the top row.
Row 2: I want straight, the skip until an on point block is placed under block 3 of row 1 then skip until the last block is straight in line with the 5th block above.

Row 3: Just 2 blocks-one on each edge straight up.

Row 4 same as row 2.
Row 5: same as row 1.

I have NO CLUE what-so-ever as to how to make this quilt top now that the blocks are made. I also have NO CLUE as to how to figure how much background fabric to purchase.
Can anyone offer me help as to how to do this or where to go for help. I did not purchase the pattern or fabrics locally so don't feel I can go to the local quilt shop.

Obviously I can't send a picture when all I have is a pile of blocks, sorry. Thanks for any help. Sue

I'm not sure I understand what you mean. but you might try drawing your shapes on graph paper, then cut them out and put on another graph paper to arrange. The grid will help you figure out the spacing between.

I think the basic problem you have is that when you turn a block on point it is very much larger that the straight up block. So your 12" block on point becomes about 17". so to alternate 12" blocks straight and then on-point this would be 12" then 17" then 12" etc. Are you planning to square up on-point blocks? Rule is for setting squares- corner block size +2" and then cut diaginal. .For sides- Diaginal measurement of block +2" - cut 4. As Katier825 said. layout blocks and go from there.

You better draw it out. The 12 inch blocks will measure 17 inch when put on point, so you will have to add material to make the straight blocks the same width. That is, if I read you correctly.