Looks like a school project.
From the side view, not sure why the blades are below the body.
I agree with the other about the manual part.
Chris, CSWP
SolidWorks
ctophers home
Everything about that dwg is confusing to me. I wouldn't know where to start if I were to make it or inspect it.
Each datum letter should have its own surface.
I don't know what the C/C or F/A, U/D means.
Chris, CSWP
SolidWorks
ctophers home
I'm not saying this is the problem without seeing pics, but I have seen this happen with (example) 82 deg flat head screws, 100 deg c'sink hole, or other way around.
Chris, CSWP
SolidWorks
ctophers home
I don't know if can be done.
I would not model special threaded holes with Hole Wizard. I don't understand the extra effort.
Use the standard callout, let the CNC machinist use the data for the proper tap.
Chris, CSWP
SolidWorks
ctophers home
Rayleigh,
I think you may be overthinking it.
My suggestion is make some preliminary drawings, same part tolerance both ways, get some quotes.
I'm curious the outcome.
My guess, if you dim 1.40625 +/-0.1, they may either question it, or misread it and assume you are looking for a looser tol.
If...
It really depends on the feature and their best method of measuring that feature. They have everything from calipers, to CMM, to 3D scanner.
Engineering doesn't dictate to them which tool to use. They are the inspectors, they tell us if it falls within the tolerance.
Chris, CSWP
SolidWorks...
I passed by inspectors, and machinist supervisor.
1.40625+/-0.01 is read as:
1.41625
1.39625
Regardless how it's measured. Any more or less is fail.
Chris, CSWP
SolidWorks
ctophers home
From my experience at different companies, inspectors and machinists have never heard of the % rule of thumb. Especially where I work now.
They want to know hard dimensions and tolerances.
If a dwg shows 1.40625+/-.01111, they will measure to that tol.
I have asked them about the 10% rule for...
So there is never a question, and no errors, show the tolerance dec places the dim same as the dim dec places.
Add a tol block, including fraction, to cover all other dim's.
Chris, CSWP
SolidWorks
ctophers home
I work with this junk daily.
The way it's shown is meaningless.
Also, TYP is not used with 4X. It's one or the other, prefer 4X.
Chris, CSWP
SolidWorks
ctophers home
You get some very cold and hot temps in Salt Lake. It wouldn't hurt to stay with PT just in case moisture creeps up into the areas.
Chris, CSWP
SolidWorks
ctophers home