Taper Callout On Print

NO, not without more information. Does it look like this? Are any of the numbers followed by one of these:°,",'? This is copied from Wiki.

have an email? I can't seem to post pic

Just hover the cursor over my screen name and click. That screen will give you a mail option.

I'll try to post what you send for everyone else to see, too, if that's OK.

Also, what's the controlling specification for dimensioning and tolerancing the drawing?

How is the drawing dimensioned? ASME Y14.5-2009? Or other?

jis

HEY YOU!

http://draftingmanuals.tpub.com/14276/css/14276_166.htm

Dimensioning standards...

I don't have a clue.

[PDF] JIS Japanese Industrial Standards
Maybe Machinery's Handbook.

Thank you just the same :)

Patience Grasshopper,

If there's one thing that abounds here, it's opinions. Many will be along. You'll have to separate the wheat from the chaff, or declare crop failure.

Where is Wingman1985 when we need him???

GA. (You beat me to it.)

Old guy's rule !! GA

Those were my initial thoughts. My confusion lies with the 17 and 23 mm run. In terms. of run, is that referring to the o d.? Would comparator or calipers be the way to go?. How would you measure?

You would calculate the two angles: (1) use 17 for the hypotenuse and 1 for the short leg and (2) use 23 for the hypotenuse and 1 for the short angle. Your tolerance would be between these two angles which would be easily measured on the comparator.

IF Ronseto is right, the RUN (17-23) would be the long leg, not the hypotenuse

Rise/Run is the tangent of the angle; you are calculating the sine of the angle.

You are correct. My bad.

Run refers to distance horizontally re the drawing. Rise refers to distance vertically.

So the angle must be between 2.49 degrees and 3.37 degrees. Measuring would depend upon the equipment available, and whether or not the piece is mounted on something that would permit automated measurement.

I suppose if you were sampling production, you could use a pair of angle gauges that you'd pass the piece through. The part should contact the small end on one gauge and the large end on the other.

It seem to be a plug to close a hole in a motor block , as the hole is cilyndric it will fit tigth , also it is need to release from the forming tool .

Sure its brass or mild steel to be tin coated.

KAM, The taper spec states that the part requires a taper angle of 1/20 starting at the o.d where the 1.6 surface finish spec is shown (I see x0.38 - x0.26 but can't make out the rest). The tolerance limits of that angle are 1/17 and 1/23 as mentioned. You can check the od (x0.38 -x0.26) with calipers or micrometer because that diameter is tightly controlled not to mention it also has a tight roundness tolerance. Although important, the taper is secondary. I suppose a comparator would work but it's 2012 and CMM is more accurate since you can check o.d, taper, and roundness at the same time.

Ron got it right but just to stir the pot...he said "...can have a taper". The taper spec is not a tolerance for the shape of the part. The taper spec is the requirement.

Ron you still got a GA from me. Like I said, I'm just disturbing the poo!