SHOP TIPS

[@jeffryblackmon4846]

You are a blessing to the many interested minds here on YT. Many Many thanks!

[@mrpete222]

Thank you very much

[@johningardia7106]

After spending years as a machinist and also graduating a machinist tech program at college, I feel that I can say you are the best teacher on machining I have ever encountered.

[@mrpete222]

+john ingardia THANK YOU VERY MUCH. That means a lot to me. Lots more to come

[@samwittstruck.6685]

Gold standard.

[@Seneca1996]

Tubal: I am the same age as you and I started out doing machine work as a hobby after 40 years as an auto mechanic , from watching your videos and using your knowledge in practice for the last 8 years I am now teaching basic machine work ( and Machine work math ) in a junior college, its so rewarding and thank you soo much.

[@mrpete222]

+Seneca1996 WOW-I'm really impressed. Yes, there is great satisfaction in teaching-keep it up.

[@joeclune1784]

in my opinion you can never over explain tool set up or anything else. I'm new and your explanations help me build my confidence up. thank you

[@mrpete222]

+joe clune Thanks for watching

[@deemstyle]

Your videos are simply amazing. Thank you so much for taking the time to explain these processes in such detail!

[@mrpete222]

+deemstyle Thanks for watching

[@russelallen5342]

I love your videos. Your passion shows! 40 years ago when I replaced an 1940's Atlas with a Craftsman Commercial with quick change gearbox, I believe the paperwork said to cut metric threads required an optional metric lead screw.

[@mrpete222]

+Russel Allen thanks

[@AmateurRedneckWorkshop]

Another great video, now on to part 2. Thanks for sharing.

[@mrpete222]

+cerberus Thanks for watching

[@MrUbiquitousTech]

Good info as always Mr. Pete, thanks for it! Interestingly, those metric cutting instructions for the imperial lathe are a little familiar to me. My big lathe is a 1908 American Tool Works 14"x6' and although it cannot cut threads now due to mechanical problems, from what I understand that method of engaging the half-nut and leaving it engaged until the thread is complete was the standard procedure for that era as the lathes did not have a thread dial at all. That's what I've read anyway, just a 'for what it's worth'. Off to watch part 2 now.

[@mrpete222]

+ShysterLawyer Might be-Thanks for watching

[@joea3728]

As always, a great video. You mentioned that the Atlas change gear lathe has more possibilities for cutting threads, than one with a quickchange gearbox. I use a South Bend lathe, with a quick change gearbox, I don't have an Atlas so I cannot dispute the fact. But on the South Bend lathe, I have not found any thread pitch that could not be cut using the quick change gearbox, with a combination of Change gears. In fact using a computer, I have calculated thousands of thread combinations. Just to see what the possibilities are. and found some pretty odd thread pitches. Such as a 3.3333… And a 6.6666… I found way too many to remember, much less list here. But it was very interesting to see what the possibilities are.

[@mrpete222]

+Joe Allen Good to know. Thanks for watching

[@matthewcorcoran4562]

Mr Pete, I just got a Logan 9-b-28-1 recently. I’m wanting to cut a metric thread but this lathe didn’t come with any change gears, it’s got a quick change gear box, but not any extra gears. Is there a way I can rearrange the gears on the lathe to make it turn metric threads or will I need to find a set of change gears?

[@mrpete222]

No, you would need a Nother set of gears in order to cut metric thrones

[@johnjohn-ed9qt]

You can cut metric with the QC by putting the metric conversion gears in the chain that drives the QC primary. The particular gear selection does depend on the particular metric thread, as the gears for imperial are selected for reciprocal pitch (threads per inch), and for metric, you want true pitch. But, many common metric pitches can be had with a single set, as the ratios go as 4/4, 4/5, 4/6. 4/7. 4/8 (reciprocal mm pitch- 4/8, or 1/2 thd/mm is 2mm pitch) for 1, 1.25, 1.5, 1.75, and 2mm pitch, and the next range gives you 8/4 and 8/6 for 0.5mm and 0.75mm.

[@pierresgarage2687]

+john john The lathes that do both metric and imperial, have the famous 127 tooth gear to do the conversion. Still have to stay engaged though, cause the lead screw is still imperial... ;)

[@johnjohn-ed9qt]

+pierre beaudry True. But I was referring to needing to remove the QC box. That can stay and a greatly reduced set of selection gears can be used for metric. I gave an incorrect list above (not looking at the lathe with the chart on it last night). If, for example, change gears are put in to make the 30TPI setting cut at 1.0mm, then the 20PTI setting will cut 1.5mm, and the 15TPI setting will cut 2.0mm. There are only a few setups required to get all standard threads this way.

[@mrpete222]

+john john Thanks for watching

[@daverose6368]

+john john Is it possible to have a little more information on this? Or could you point me in the right direction? I'd love to be able to cut .8, 1, 1.25, 1.5mm threads on my Atlas... And Mr. Pete. I just found your youtube channel. Thank you.

[@mrpete222]

+john john Thanks for watching.

[@freemanfreed1581]

any body please ?? is this thread cutting procedure apply to other lathe machine types ???

[@freestyla101]

Why is it necessary to angle the rest at 29° when you’re going to angle the cutting tool separately to be 90° to the work?

[@ruudsmits907]

Although I mostly own theoretical knowledge instead of practical, I think the explanation to this is that you want to cut with the "left" side of the tool-point. Driving the tool into the work with the compound at 29 degrees will make all cutting to be done with that side of the tool.

[@freestyla101]

@@ruudsmits907 I’ve learnt a lot in the time since posting and my understanding is that you are cutting more on that side of the tool, but not entirely. Joe pie has a good video on it.

[@pkerekes]

Hello Mr Pete, On your red intro screen "USE A BRUSH TO REMOVE TRIPS ..." Did you mean "CHIPS", love all your videos, Thank you.

[@magicbytes3835]

Hello mrpete, what has happened to part 2, I cannot find it, I am really interested in what you have to show us about this topic? Cheers from me. 😃👍👍👍👍👍

[@mrpete222]

I just did a search and it came right up

[@magicbytes3835]

@@mrpete222 OK thanks I found it, cheers from me. 😃👍

[@jamieross83]

It must be so confusing not being from the UK and trying to work out our measurements because we use a combination of metric and imperial for different thimgs

[@mrpete222]

+Jamie Ross Yes-Thanks for watching

[@meyawabdulaziz3863]

thanks for sharing i have an atlas 109 i bought years ago....that thing isnt rigid at all and you cant take heavy cuts with it .. it has the same beaten to death edge when i got it..

[@mrpete222]

+Faisal Abdulaziz No--they lack rigidity

[@daividdaivid3440]

Hello sir . Make video dismantling, repair and refurbishment method

[@kevinwillis9126]

thank you for sharing sir..

[@mrpete222]

+Kevin Willis Thanks for watching

[@tonylorentzen]

"Use a brush to remove trips from your work!" ... Trips? ;-)

[@comictrio]

+Tony Lorentzen Sometimes bar stock is dunked in LSD for added workability :) Just kidding.

[@kevCarrico]

sir, there's no way on earth that you can spend too much time on a subject, or over-explain anything -- it's simply not possible.