Yes, using the fine thread bolts lets you adjust so you can literally split the line when you make your measurements. I've had this for several years and have yet to adjust it. Very important to hang it on a wall or it will bend.
To adjust the square I use a full sheet of plywood and my shop made parallel guides. I had a video where I actually did this but I don't see it any more. To begin I use a track to straighten one long edge of a sheet of plywood. Next I use my parallel guides to make a parallel cut on the opposite long edge.Then I use this square to make 90 degree cuts on the ends of the plywood and adjust it until the cross corner measurements are exactly the same. Try watching the video I made on shop made parallel guides. Near the end I describe how I use all these shop made jigs to square up a full sheet. When I first made and used this thing I was amazed at how accurately I could dial it in. Its been a few years now and it is still dead on accurate. Just make sure you hang it up on a wall when not in use or it will bend if just leaned against a wall. Thanks for watching, hope this helps.
Plumbers' teflon tape works well as a thread lock!!
I really like the adjustment for squareness. Really let’s you dial it in and keep it square over time!
Yes, using the fine thread bolts lets you adjust so you can literally split the line when you make your measurements. I've had this for several years and have yet to adjust it. Very important to hang it on a wall or it will bend.
This is genius - simple, repeatable and adjustable! Thanks for sharing!
What do you use to determine that your jig is square though? What are you referencing with, a carpenter's square?
To adjust the square I use a full sheet of plywood and my shop made parallel guides. I had a video where I actually did this but I don't see it any more. To begin I use a track to straighten one long edge of a sheet of plywood. Next I use my parallel guides to make a parallel cut on the opposite long edge.Then I use this square to make 90 degree cuts on the ends of the plywood and adjust it until the cross corner measurements are exactly the same. Try watching the video I made on shop made parallel guides. Near the end I describe how I use all these shop made jigs to square up a full sheet. When I first made and used this thing I was amazed at how accurately I could dial it in. Its been a few years now and it is still dead on accurate. Just make sure you hang it up on a wall when not in use or it will bend if just leaned against a wall. Thanks for watching, hope this helps.