You tell me which set of threads looks right, yours or mine?
I do not understand WHY you need an accurate model of these helical threads, especially since you already stated you are going to tap the pilot hole (which is 0.173" for the tapped hole).
Toolbox doesn't have this fastener so you need the parameters. I get it. But Toolbox only makes a representative part, not a finely detailed part, because in only the rarest cases does the model actually need to have accurate threads.
For your TB data you should use .170 for Thread Minor Diameter, .173 for Thread Minor Diameter Inside and .173 for the Tap Drill.
Now please, tell me WHY you need to model the threads.
Did you just recently upgrade ?
If you did check your File Reference setting in the Options
No. No upgrades. When I dig into the toolbox I find this:
If I just ignore the warning or click ok it kicks me out to a 1/4-20 callout. Management does not want to pay for support so contacting my VAR is out.
I don't remember doing it, but I must have added the 1/4-36 callout to the toolbox. My coworkers do not have it as a drop down option.
I don't use tool box - but somebody will come along that does, thinking that Dennis Dohogne might be able to steer you in the right direction..
Thanks John! I think I know my problem. I need to populate this with the correct information. Not sure where to find it.
I need the correct information for Advance, Thread Minor Diameter, and Thread Minor Diameter Inside. Looking through UNS Thread ASME B1.1-2003 I do not see Solidworks data matching for 1/4-28 callout. So I am not sure what data goes in these last three boxes.
This might help
Rick McDonald My Thread Data table looks like this:
I am not sure I put in the correct data for Advanced Thread Minor Diameter and Thread Minor Diameter Inside from your above snapshot.
Rick McDonald do you know where I can find #10-64 thread data? We are using this #10-64 UNS, H2, 4 Flute, Bright Finish, High 74818535 - MSC to instal some specialized components that require it. Again I can not find Advance, Thread Minor Thread Minor Diameter Inside information for a #10-64
For #10-64 the Advance is the pitch = 1/64" = 0.0156"
I constructed the thread profile in SWX2016 according to the Machinery Handbook and found the Minor Dia to be .173".
That should answer your questions for the #10-64.
Thanks. I am using 2015.
I got roughly .170 when I constructed it. My "tooth" is .01012500 because I took .01350 (base to peak of triangle) and multiplied by .25. Wrong math?
My Hole Wizard looks like this now:
What is the Thread Minor Diameter Inside?
I think I need to model the threads because:
1 - Design review with Engineers are checking to see how the two parts mesh together.
2 - IGS Model is being sent overseas to vendor to mass produce 1000's of parts. I want to be sure it is correct.
3 - Probably for me the biggest reason is I am learning something new. Thanks to Dennis Dohogne, John Stoltzfus and Rick McDonald I feel like I know more of the inner workings of the tool. Feel like it makes me a better designer. THANK YOU.
You are correct. Toolbox only makes a representative part. For the design review internal to our company, they want to see the thread engagement. #10-64 was critical for the minor adjustments to the "screw" creating black magic with the RF signal. They now want me modeling the spring "reactions" when the screw is turned. Bulging of the spring in an unexpected manner again messes with the black magic of the RF signal.
If you are sending dumb solids to another vendor I highly suggest you send several different versions. IGES is notorious for having holes. (IGES actually stands for International Graphics Exchange Standard, but it has never actually been agreed upon/ratified, so it is actually a misnomer and not a real standard.) Be sure to also send both types of Parasolid (*.x_t and *.x_b), ACIS (*.sat), and STEP AP214 (*.step). You can save yourself a ton of time in the future by sending a test file/assembly of similar complexity to see what format works best for them and then just using that. Do you know what 3D system and version they are using?
I regularly send files back and forth to a company in Taiwan. They are using Creo 3.0. Their IGES files suck, but they have sent me Parasolid files that work just fine for me. I am looking forward to SWX2017 SP4.0 and hope that it is finally stable enough to use. I understand SWX2017 can open a native Creo file without having to go through a dumb intermediate file. I'll still get a dumb solid, but it should be better and certainly faster.
Unified Screw Threads, Standard Series
Dennis I was just there and I do not see the correlation between Advance, Thread Minor Diameter, and Thread Minor Diameter Inside and the chart.
I had not seen any more on this post so I was assuming you had figured out the correct settings.
I have never tried to make any additions or changes to the Hole Wizard files - I was just including the information I found for some sizes for the thread you were looking for. I am also not a trained machinist so I have never gotten this deep into the thread specific names.
However, just looking at the numbers you added compared to the previous line (for 1/4 UNF thread) I do see a few things that don't look logical (or consistent with the previous threads)
You have the "Advance" as all zero's (probably not correct - try a number closer to the UNF Advance value - but probably a bit smaller)
You have the "Thread Minor Diameter" a value that is larger than the "Thread Minor Diameter Inside", where the previous thread (1/4-20 UNC) has the "Thread Minor Diameter" value smaller than the "Thread Minor Diameter Inside" value.
My feeling (could be wrong) is that you should only be using the values for the "Inside" threads" ("Int." in the values I posted) and I would try setting the value for the "Thread Minor Diameter" to .2260 and the value for the "Thread Minor Diameter Inside" to .2200.
Again, I am not well versed in the various settings or names for the thread call-outs but I would give this a try.
I am sure there are many people out there that know this better than me so maybe one of them will respond.
Yes I need to update the values for the 1/4-20 UNC now. Had to turn and burn to get documentation out so I "faked it" on the drawing.
This issue resurrected itself with wanting to add a 10-64 UNS -2B screw. I got my VAR (Go Engineer Rocks!) involved because I was not able to save a copy of the hole wizard standards and it turns out that this was a common bug in 2015.
Check out thread Create custom hole in hole wizard
@Kelvin Lamport mentions a step by step guide for modifying the toolbox in the threads that I found helpful.
Retrieving data ...