Recent content by R1chJC

Thanks for the replies. mfgenggear, apologizes I'm not sure what you mean?

I'm creating a 3D model of an external involute spline in SolidWorks. The model is to be used directly for manufacturing programming, as such the model needs to reflect as best possible the required geometry at mid tolerance. I've created the involute flanks with parametric equation curves...

Hi All, I'm looking at a drawing the below call-out on a hole - doesn't seem to make sense to me.. Isn't the first row redundant since you get that same control as part of the Position tolerance row anyway? Datum feature A is a face perpendicular to the hole.

yes its a simultaneous requirement?

Another questions, if I make both holes relative to [A][B], does it evoke a simultaneous requirement and control the symmetry of the two holes about the centerline?

I'm glad it makes no sense to other people as well, think i'll just start from scratch on this one..

Hi All, Can anyone help me interpret the drawing below. I've no idea what that second FCF row means? I'm re-drawing the part and am trying to decide if what was originally drawn is the best approach (I've added stuff in red for clarity that's on another view) I already have issues with...

Yep could do that, although I liked the idea of using a profile tolerance and simultaneous requirement to control rotation as suggested in an earlier post. Presumably if there was interference then B should remain secondary? Is this because an interference fit on the stud would not allow the...

I can see how the datum sequence effects points of contact in the diagram from CheckerHater. I'm struggling to see how one might be preferred over the other in my application.

Yes, clearance in all conditions - but only a few thou.

In this instance the part locates on the stud(1) and then slides down to abut onto the mating face (2). I was trying to mirror that with the datum sequence.

Hi All, Thanks for your inputs. Some good ideas thanks! I don't have a preference at this point whether the constraints come from a simultaneous requirements or not. Datum surface [B] abuts a mating faces so I chose the corresponding hole as [A].

Hi All, I have a part that looks like a figure of 8 with two holes, similar to a chain link. The holes need aligning with one another but i'm struggling to decide how to apply a tertiary datum to lock any rotation - see attached. I don't want the holes wandering off so the wall thickness get...

Yep sorry i missed the diameter symbol. My question is regarding cylinders.

Hi Greenimi thanks for the reply. Are the two call-outs below legal in ASME then? If so how do they differ? Ta.