Terminology/How to describe...question

[Psyop96]

Is there a technical term or apt wording to describe the following two physical features, marked 1. blue (the drop-off) and 2. red on a CZ 75B? Thanks in advance.






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[HollowDawg]

I have the same model. Curious to see what folks come up with. I'd go w sexy but only because my wife DOESN'T read this forum.

[Grendel]

1. Chamfered

2. Fluted

[painter]

What model is it?

[Tok36]

What model is it?

Looks to be a CZ 75 B New Edition or a CZ75 Stainless Limited Edition. Not 100% though, i do now own either model.

As to the thread questions. I have most commonly heard #2 referred to as scalloped but i agree with Grendels suggestion, Fluted is an apt term to describe the picture.

I am not sure about picture #1.

[Rock-it3]

1. Chamfered

2. Fluted

#1 I don't think I would call a chamfer. A chamfer occurs where a square corner is knocked off, making a flat surface instead of a corner point. It could be called a relief, or a shoulder. But a shoulder usually supports something. I think I would go with relief. Or lightening relief.

#2 I agree completely. Fluted is a great description. Radiused Flute.

[Grendel]

1. Chamfered

2. Fluted

#1 I don't think I would call a chamfer. A chamfer occurs where a square corner is knocked off, making a flat surface instead of a corner point. It could be called a relief, or a shoulder. But a shoulder usually supports something. I think I would go with relief. Or lightening relief.

#2 I agree completely. Fluted is a great description. Radiused Flute.

1. I was looking at the leading vertical edge. Looks chamfered to me, but I may be wrong.

[Rock-it3]

1. Chamfered

2. Fluted

#1 I don't think I would call a chamfer. A chamfer occurs where a square corner is knocked off, making a flat surface instead of a corner point. It could be called a relief, or a shoulder. But a shoulder usually supports something. I think I would go with relief. Or lightening relief.

#2 I agree completely. Fluted is a great description. Radiused Flute.

1. I was looking at the leading vertical edge. Looks chamfered to me, but I may be wrong.

I think the surface leading to the vertical edge is actually a rounded profile, made from a rounded end mill or cutter. A chamfer is created by removing material from a sharp corner.

[viking499]

#1  would be a fillet.

#2 is called a "cove" in woodworking, maybe the same thing on the metal cutting end.

[Rock-it3]

#2 is called a "cove" in woodworking, maybe the same thing on the metal cutting end.

Could be, but the grooves on the cylinder of a revolver are called flutes. The cut on the pistol shown is essentially the same thing, and made the same way, with a ball end mill.

[viking499]

#2 is called a "cove" in woodworking, maybe the same thing on the metal cutting end.

Could be, but the grooves on the cylinder of a revolver are called flutes. The cut on the pistol shown is essentially the same thing, and made the same way, with a ball end mill.

Wonder if that is the name used for that type of shape/cut on a cylindrical surface?  Like the number of flutes on a drill bit or end mill.

[Psyop96]

Thanks for the helpful responses, folks.

First of all, for Painter and Tok, it?s a New Edition. Tok is correct to hint there?s not enough seen of the slide to indicate whether it has ?Limited Edition? marked on it to distinguish it from the unmarked, later New Edition that is still in the European catalog. I chose this cropped photo as it clearly shows the surfaces in question.

Flute....I like that it?s associated with fluted cylinders from revolvers.

With regards to the other item, I started looking up chamfer which led to bevel, lark?s tongue, fillet, angle of slope, arc, etc. What I see mostly so far that the chamfer is a form of bevel with a distinct 45 degrees slope. I?ll do some more digging around to see if bevel or another term better suits. Hoping to kick-start a written project on CZ 75s over the decades that I?ve been think of doing for a while.

Again, thanks for the discussion here and future contributions.


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[adrian]

     Hiya and thx for the thread, and its great to see gun, cz, appreciation at the masters and Phd. levels. As if I needed to find more contours and elements to admire in the function and art these wonderfully fun tools already are.Thx for adding to my enjoyment. Be well.

[Wobbly]

I would have said "fillet" for #1 too.