JD, Here's two places to check. Hardware Advisor:AutoCAD Recommended Hardware Certified Hardware:Autodesk - Certified Hardware - Find Recommended Hard...

I downloaded the 2014 NAIP 1M NC/CIR file and had no problem using MAPIINSERT in C3D 2016: Dave

E, In your Point Style Dialogue Box, hit the Help Button, which will take you to the information you need to make a choice. I would "Use Drawing Sc...

MoM, That's been a burning question on the AutoCAD Forums. No one knows: I tried changing a few things in Ambient Settings. Had absolutely ZERO effect...

E, Best to change that in the Ambient Settings Tab of Drawing Settings. Dave

Mark,Standard practice is to do an AUDIT before a SAVE/CLOSE. I haven't used RECOVER yet.Dave

Scott, Michael Dennis has a wonderful site to investigate projections. You get one free day's play: Dave

Scott, Can I retract what I said? I was wrong. Grid coordinates are projected perpendicular to the Ellipsoid. Here's a couple of good graphics lifted ...

Scott,"How are horizontal coordinates projected to the grid? Perpendicular to the grid?"Yes. Projections are Cartesian. scale factor = (R + h) /...

Loyal,I agree, mostly. HOWEVER, sometimes you have to play to the customer. If your DOT wants a road staked to THEIR control and elevations, then I wo...

Kris, The National Geodetic Survey Data Explorer has a nice Google-type map: Dave

Yes, it needs to be calibrated. Screw it onto a leveled tribrach with rotatable adapter. Then you can adjust the vial. Dave

Uh, Brad, why don't you just put the circular saw blade on a circular saw? Dave

Scott, If you'd like to grab just a piece of Geoid12A, Trimble has a neat utility called Grid Factory here: Dave