Radius Question

G

Grinder7

Plastic

Joined

Dec 4, 2018

• Dec 4, 2018

• #1

Hi guys,

This isn't a CAD/CAM question so I hope it is okay to post this question here. My background is in grinding and haven't dealt with many prints like this. I am learning Mastercam at the moment and have come across a print and am confused with the radii. All the prints up to this point have made it really easy to see what the radius sizes are. I am either overlooking something obvious or am missing some important knowledge and hope you guys can set me straight. Thanks.

 

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precisionmetal

Stainless

Joined

May 16, 2005

Location

CA

• Dec 4, 2018

• #2

I'll venture a guess: every radius not specifically marked "might" be .187".

I wouldn't bet lunch on it though -- I might lose.

PM

 

Finegrain

Diamond

Joined

Sep 6, 2007

Location

Seattle, Washington

• Dec 4, 2018

• #3

You'd better look at the solid model. They're probably 3/16", but maybe not.

Regards.

Mike

 

R

Rob F.

Diamond

Joined

Aug 5, 2012

Location

California, Central Coast

• Dec 4, 2018

• #4

It says R.187 TYP which means typical, all others like the one pointed out are typical to it. Good to double check though.

 

S

SeymourDumore

Diamond

Joined

Aug 2, 2005

Location

CT

• Dec 4, 2018

• #5

Well, from where I stand, you've been given all the answers.

The internal radiuses are specified as R.187 Typ.
Meaning, unless there is another explicit callout for an internal radius in a specific location, all internal Radii is to be .187 +/-UOS.

At the same time you have external radiuses defined as 2xR.20 and 5xR.250.
That too is clear, 2 x R.2 and 5 x R.250 +/- UOS

That print ( pretty or not ) does give you all the info you need.

18X .187 internal Radii.
5X .250 external radius
2x .200 external radius
2x .300 external radius

 

G

Grinder7

Plastic

Joined

Dec 4, 2018

• Dec 5, 2018

• #6

Okay, thank you guys. Up to this point Typ has been used for similarly placed radii if that makes sense. They also have used a note on the print that states the size to be used if there is no call out. It just gave me some doubt so I figured better safe than sorry. I appreciate you putting my mind at ease.

 

L

LKeithR

Stainless

Joined

Sep 1, 2011

Location

Langley, B.C.

• Dec 5, 2018

• #7

Sounds like you got your answer but what did the customer say?

 

goooose

Hot Rolled

Joined

Nov 14, 2007

Location

canada

• Dec 5, 2018

• #8

Where are you taking your Mastercam course and what is the basis of this print?

 

D

dodgin

Hot Rolled

Joined

Mar 16, 2015

Location

MI, USA

• Dec 5, 2018

• #9

I bet the coursework/origin of print is caminstructor.com...

 

moldcore

Hot Rolled

Joined

Dec 15, 2005

Location

UTAH

• Dec 10, 2018

• #10

The R .187 Typ would apply to all unmarked fillets in this case. They couldn't argue with that.

Oops, sorry I didn't see all the other answers until I posted this response.