openBrain wrote: ↑
Tue Mar 12, 2019 3:43 pm
ajoeiam wrote: ↑
Tue Mar 12, 2019 2:58 pm
Except a solid cube is rarely ever built.
When I fabricate a cube I need to modify certain things in the interior to get the exterior to comply with what is needed.
What would you modify inside a cube ? If you saw or mill a cube in a block, inside is raw material.
When I look at the cube and it says 'Top' what is actually being referred to is, to my way of thinking anyway, the top of the bottom plane. The referred to plane is not the top of the top of the cube.
This may be the difference between designer thinking and fabricator thinking - - - I dunno?
I still don't fully understand, but AFAIK fabricators read drawings that are generated by designers.
FreeCAD views just stick to the standard mechanical engineering (example below is US projection ; it's different for EU designers, but this one is a better picture of what happens if you "unfold" the cube).
Trades guys use drawings to fabricate. Sometimes things work as per the drawing - - - other times one needs to understand what the designer wants and then modify what they have on the drawing to get a functioning item. Some of the the stuff I've seen on drawings - - - LOL - - - you can tell they have never really worked on or with what they designed.
OK the drawing seems quite straight forward - - - except - - - now the drawing is of a room (with features).
Look at the 'Cube' again - - - not that what the Cube calls 'Top' is actually the floor plan its not really the top of the room.
Look at what is referred to as the 'Bottom' - - - is that actually the bottom of the structure or is it the top of the inside of the cube. I don't think its actually the bottom (underside of the floor) on the room.
These variances I find confusing - - - sorry.
(I've worked in a building that was 600' x 150' with a 60' wall height (might have been more wall height - - - it was 96 steps to the mezzanine!). There were two complete processing lines in that building. Drawing that building it would be quite useful to have a nomenclature that connected with any and all users. (My projects will NOT be that large but may be more complex that that facility (where things were very large but the parts count wasn't that high).)