The alignment trick is to build the wall first, raise in into position over the bolts, then tap the bottom plate to form an indentation where the bolts are. Then you drill through the bottom plate at exactly the right location, no guesswork. For 1/2 inch bolt I use a 5/8 drill bit and a large washer with two nuts. A bit of overkill, but you never need to worry about the plate getting loose that way. You do have to make sure there is enough stickup of the bolt to allow for two nuts and a washer though.
Production framers would snap a caulk line at inside wall edge, straighten bolts for plumb with 2' jack-pipe, set the plate on the bolt tops lightly, aligning to line on concrete at each bolt, tap lightly on plate marking each bolt, flip and drill them, add double tops if used, lay them all out bundled, frame wall, add 1-3/4" wide blocks (2x4 ripped w. saw) in front of bolts if 2x6 wall so when raising, plate lines-up close to centered bolt. Wall up-right, lift wall at each bolt with hammer handle to engage bolt, removing block. Need two people if larger wall, no ladder work, way quicker... Start your end nails in the double-top for aligning wall with string inside edge later while on the slab. Do your joist/rafter layout while wall is down, no ladders but to tie the string and nail corners. Don't forget the sill sealer for thermal/capillary break, and possibly the termite shield.
Place bolts in wet concrete, put pressure treated lower plate next to bolts, mark lines on both sides of bolts with a small square, mark spot on plate at bolt, drill out plate holes, install termite shield, put plate over bolts hammer down to shield, secure plate with washers and nuts.
A forum community dedicated to Do it yourself-ers and home improvement enthusiasts. Come join the discussion about tools, projects, builds, styles, scales, reviews, accessories, classifieds, and more! Helping You to Do It Yourself!