Is there a concise way to describe this?

[tluxon]

"Spotfaces" are often used to give a screw head a flat surface to tighten down to.

I'm modifying a plastic case (Serpac/Seahorse) that needs a "spotface"-like flat surface milled onto a nearly flat surface while removing a minimal amount of material. This surface is just like a spotface but is rectangular in shape.

Would you call this a "rectangular spotface"? Or is there some other term that better describes something like this?

Thank you!
Tim

 

[btrueblood]

No, I wouldn't try and call it a spotface, I think it invites confusion.

Just dimension it like any other feature, with the depth called out with a tolerance that will remove the objectionable texture (presuming that is the purpose of the milling). You could also specify the surface finish desired on the milled area, and use the "closed" leader end on the finish symbol to specify material "must be removed".

Alternatively, you could put a leader to the milled area and state a surface finish requirement, or state "minimum depth to remove texture". Both alternatives by themselves (without a depth and tolerance) could be open to misinterpretation that a depth dimension won't.

 

[rb1957]

how about "flat" ? ie machine a flat (surface) ??