3 ms·
Yes, that's the point. 1. PDF is to become a standard CAD interchange format. 2. Using PDF where 0.03% matters is insane. 3. If CAD requires 0.03% tolerance,
by anamexis 3y ago
Yes, that's the point.
1. PDF is to become a standard CAD interchange format.
2. Using PDF where 0.03% matters is insane.
3. If CAD requires 0.03% tolerance, then using PDF as a standard CAD interchange format is insane.
I would imagine you generally want arbitrary precision for CAD.
- Nevermark 3y agoAbsolutely! I cannot imagine a CAD system that can't symbolically represent what is actually desired. The model and its spec should be one and the same. Approximations also open the door to different precision versions. Not helpful when different parts from different sources need to be consistent. Models that approximate/vary from the ideal spec, created intentionally to match manufacturing limitations, are ok.
- wombatpm 3y agoDrawings for parts should have tolerances called out. I did mechanical inspection for a manufacturer for several summers. Every dimension had a plus/minus value listed. Holes and screw threads had go/no-go gauges
- Aardwolf 3y agoBut could the CAD use more than 4 control points to approximate the circle better?
- microtherion 3y agoBut is PDF really the standard CAD format for communicating with machines? For laser cutting, I prefer to use SVG, as it's easier to generate. I had not really thought about precision, but SVG can represent circles directly.
- erhaetherth 3y agoUsing PDF as a standard (for anything) is insane. I mean it was nice before Adobe backpedaled and tried to milk it for everything and now the format is anything but portable.