Make a Go - No Go gauge for 1.5 X 8 tpi : Southbend, Atlas, Logan backing plates.

[@BillyTpower]

thanks for the reboot Don, I'm glad it's still up. You never know when a new guy comes along and will miss gems that didn't make the cut. (pun intended)

[@donsengine3158]

Good one.. I was on the fence about rebooting that video. Its hardly got any views. Its funny, cause simple tools like this will save a lot of grief down the road. Thanks for watchin. Don

[@billshiff2060]

That's not quite right. There is no allowance on any UN female (B) thread. That .0022 is only the extra slop allowed for the 2B over the 3B. That is only on the maximum side of the tolerance which does not create a gap while, if it were an allowance, it would have to be on the smaller end of the tolerance enforcing a gap. It is only the difference in maximum size between 2B and 3B.Allowance is only used on UN male threads (A). It is only a coincidence that the allowance for that particular 2A male thread happens to be equal to the difference between the tolerances of 2B and 3B.
You don't need to consider any allowance at all for your 2B gauge, just the min/max tolerances.
Metric threads do have allowances on some classes of female threads.

[@dalemcinnes1834]

Thanks for the video Don. I enjoy your channel and hope to go back through the videos that I have not seen so was disappointed to hear you have pulled some. I recently made a backing plate for my 12 inch Atlas and sure would like to have seen this first. My threads definitely turned out sloppy but turned out an accurate backing plate as the rest was accurate. Nobody seems to go into detail with threading or explain the percentages as is assumed everyone knows. I find the same thing about honing a tool after sharpening it. They tell you to do it but never show you how, what type of stone or what grit etc. Its a busy time of year for me but I will be watching for your videos and I like that you explain things even it it takes longer.
Dale in Canada 🇨🇦

[@donsengine3158]

Thanks Dale. If your honing HSS, don't get too wrapped up in grits etc.. Some guys get way too technical on that. I just use a cheap Horror freight diamond block hone to get the tool sharp then clean it up with a flea market oil stone. Works fine. I mostly use brazed carbide with the Atlas, so yo m ay want to watch my vid making a carbide hone video. Ten seconds on a diamond disc will keep it fresh. I don't even bother with green wheels anymore. Don

[@dalemcinnes1834]

@@donsengine3158 Thnks for the reply Don. I do enjoy the Craftsman Atlas videos that I have watched and enjoyed the video on the best tool for the small lathes and learnt lots from it as well as adjusting the bearings video for the Atlas. That is one of the first things I want to check on now. I also enjoyed the Harley ride as well. Keep on doing well and i will be watching for new videos. I appreciate the tips on touching up the carbide tools.
Dale in Canada 🇨🇦

[@donsengine3158]

@@dalemcinnes1834 Thanks Dale, you'll probably like tomorrow AM vid then. Don

[@MarkATrombley]

Length may have been the issue with the low number of views. Usually 20 minutes is the length of my attention span but for a simple topic like this 10 or 15 is about it.

[@joell439]

Thanks for the lesson 👍👍😎👍👍

[@donsengine3158]

Joel, youre welcome... Should be putting it to use soon in another chapter... Don

[@kentuckytrapper780]

Interesting video Don,great info..

[@donsengine3158]

Thanx KT, always lookin to stretch a buck where i can.

[@floridaflywheelersantiquee7578]

Lots of good info thanks for sharing

[@donsengine3158]

Always welcome FFL.. Don

[@jimzivny1554]

Good video, well explained

[@donsengine3158]

Thanks Jim.. Don