Its a stanley max, says on it 0.0005in/in I can see it move when i place a piece of paper under one end of a 2 foot level. Its not easy but i can see it.
The starett #98 is what i borrowed and is way way way easier to use and definetly makes a better job, i am not argueing that point, I don't recomend trying to use the carpenters level. For shits and giggles i tired to do the first piece with it. I got it pretty damn close but it took a lot longer and with the starett it was much faster and much less agrivating.
What i need to know is what is the best way to brace my frame so that when i tighten the screws into the slate that it pulls the slate down instead of deflecting the main carry beams A&B in my sketch on page one up. I am able to take about half of the warp out of the slate but the beams are deflecting too much to get the other half. with out the slate screwed down, on a two foot level i can fit almost 3 playing cards under the level at the low point. With it screwed down with the 3rd support added between C&D its just a little more than 1 playing card but thats still too much. i checked the deflection of the main beams A&B and they are definetly deflecting when the pressure of the slate and screws starts to act on them and the wood is moving instead of the slate.
How do i best brace the beams?
The starett #98 is what i borrowed and is way way way easier to use and definetly makes a better job, i am not argueing that point, I don't recomend trying to use the carpenters level. For shits and giggles i tired to do the first piece with it. I got it pretty damn close but it took a lot longer and with the starett it was much faster and much less agrivating.
What i need to know is what is the best way to brace my frame so that when i tighten the screws into the slate that it pulls the slate down instead of deflecting the main carry beams A&B in my sketch on page one up. I am able to take about half of the warp out of the slate but the beams are deflecting too much to get the other half. with out the slate screwed down, on a two foot level i can fit almost 3 playing cards under the level at the low point. With it screwed down with the 3rd support added between C&D its just a little more than 1 playing card but thats still too much. i checked the deflection of the main beams A&B and they are definetly deflecting when the pressure of the slate and screws starts to act on them and the wood is moving instead of the slate.
How do i best brace the beams?