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Hi all, Just curious what your experience is. The first note on my drawings tend to always be: 1) Interpret IAW ASME Y14.100-2017 and Interpret Dimensioning and Tolerancing IAW ASME Y14.5-2009 What if I were to leave off the 2017 and 2009 from these standards in the note? Would the drawing...

Hi all, Can someone please elaborate on Y14.5-2018 Figure 8-6 "Possible Results of Specifying Straightness per Unit Length RFS, With No Specified Total"? The previous figure 8-5 shows straightness per unit length at RFS (I believe this figure is also in Y14.5-2009). Where a composite...

Hi all, Apologies if this is posted elsewhere already. I can't share much details but my current design is able to withstand a random endurance vibration of 10 Grms for 2 hours. My customer is asking for us to increase to 50 Grms for 30 minutes. Can someone explain to me how I would go...

Hi all, Sorry if this question is embedded somewhere in this forum. I searched for a little while - not sure I got an answer to my question. If I have a fixed fastener situation and the threaded hole is controlled with position and refined via perpendicularity, which number tolerance (pos or...

Hi all - see attached simplified model. I have a plate with some clearance holes used for mounting. The datum reference frame will be A|B where A is two partial areas as detailed. Datum feature B will be the pattern of 2X holes and all other features that I redacted from this model will be...

Hi all, I've been put into a situation where I may need to use silver epoxy ABLESTIK 84-1LMIT (loctite) rather than tin-lead solder to conductively attach a through hole component into a printed circuit board. There's a long convoluted story here so I won't go through it but in general, I am...

Hi all, I have attached an image for my question. I have a cylindrical optical housing (red). It sits on a machined part which essentially mimics a V block (black). The red circle in the picture is not at all a feature on the machined part. I'm interested in controlling the location of the...

Hi all - I wanted to get your take on how you may go about GD&T of an optic/aperture. Let's assume I have a square optic/lens that is 1" x 1". It is too difficult to achieve a clear aperture over the entire 1x1 face so let's assume that the clear aperture must be centrally located in the 1 x 1...

Hi all - I'm looking to additively manufacture a part that will be submerged in water for an extended period of time. I'm curious if you have any recommendation in material selection? Thanks in advance

Hi all, Attached is a very simplified model of a curved part I have. The curved part mounts on a cylindrical surface, no separate alignment features other than the clearance holes in the part. I'm curious as to your thoughts on the best way to apply datums to this part. Functionally, I care...

Hi all, I'm curious to hear your thoughts on how the use of MAX (or MIN for that matter) can be interpreted. Say we have a dimension on a drawing shown as R.125 (radius). No tolerance associated with the dimension other than the default title block of +/- .005 for 3 place dimensions. So as...

Hi all, See attached picture of representative part that I have. I'm curious of your thoughts. This is a weldment. The tube gets welded into the clevis ends and the clevis ends mount to a receiving joint via the two slotted openings at the bottom and pin (two pins, one for each side). I was...

Hi all, I am attempting to use Y14.5-2009, Appendix B.5 "provision for tilting of the axis or center plane when projected tolerance zone is not used" formula to calculate the max shaft dia on my screw. The only problem is I'm getting an unexpected result. I may be choosing the wrong variables...

Hi all - just a quick question. Is it mandatory per ASME standards to add a view title to an isometric view? I'm not seeing anything in Y14.3 that would indicate this is a requirement. Normally, on our drawings, I see ISOMETRIC VIEW FOR REFERENCE ONLY Just curious if there's an actual ASME...

Hi all, I am in an aerospace application (sorry, can't share specifics) - the product I have will be cycling through hot and cold/various humidity over the course of its life. I'm curious if anyone has any experience with grade 5 Ti in conjunction with class 3 chem film on Aluminum. I see in...

Hi all, See attached picture. This is just a quick model that I through together for discussion. With this part, I made the pattern of those two bosses datum feature A - reason being is that these features would be the first features to interface to the receiving part. Datum feature B would be...

Hi all, I'm just curious how some of you may call out a specific area on a part with flatness (rather than the whole surface). I want to control flatness of 5"x5" square, centered in a 8x12 part. I don't believe I need to utilize unit area flatness. My plan was to draw a phantom box (chain...

Hi all, I have attached a photo from ASME Y14.43 (Figure B-9). I was going through some of these examples in this appendix and I'm a little confused with the outcome of this one. To inspect this part with a gage, I was expecting the gage to utilize a fixed pin set at 29mm to gage datum feature...

Hi all - I'm curious as to how some of you might detail the press fit of a dagger pin into a metal plate. I want to ensure that the flange of the dagger pin fully seats against the flat of the metal plate it's being pressed into. I've seen people put a .000 +.xxx/-.000 dim/tol on the drawing...

Hi all, I have a plate that has a dovetail groove cut into it for a gasket. Link below to a somewhat similar dovetail groove to get my point across. Link Keep in mind this dovetail groove is a tool path around the entire perimeter of the plate and not just a local feature. So my issue is...