Hi Max, Me again. As us oldies know there is another way of cutting a thread up to a shoulder. The old upside down in reverse method. I know we can do it conventionally, but the younguns might never have seen this method. Turn the tool upside down set on centre height, set up the leadscrew as required. set a dead stop so the tool is just off the shoulder run the machine in reverse and you are cutting a right hand thread away from the shoulder. A lot safer for the newbies or hobby shop guys that don't get a lot of practice. Best wishes, Mal.
I just don't like the backwards method , does not come natural to me ! Some lathes have a shocking half nut feel & some have a good one , If you have any hiccup with engagement , the part is scrapped before you realise . 👍
@@swanvalleymachineshop I've seen a lot of 'pros' to the method of threading in reverse; I appreciate hearing a 'con'. Helpful to have that perspective to consider!
G'day Max . Lots of material came off, but in the end the nut fitted very nicely & fitted right up on the shoulder. & yes the commenters talked about reverse cutting threads etc. As we know it's what we are comfortable at the time, + doing it the normal way, you have more control of the backlash taking up before thread is cut. Overall a very good series, & yep, You Did It Your Way 🎉😊
Well done Max, I am sure that will last longer than the original. Love that big lathe, every time I hear it running it takes me back to when life was much more simple lol. Cheers, Jon
A tidy shop is a happy shop Maximillion lol, g'day mate, cracking little video as always mate, presentation and execution are spot on to me I never fail to learn something from watching you work, I'd be a right over stayer if I lived nearby 😂
I was taught to put the lathe in reverse which should also reverse the feed and then to cut from the shoulder out. That then avoids crashing Into the narrow thread relief and the shoulder. This is particularly useful on a more limited lathe (driven, in my case, by someone with limited skills).
@@swanvalleymachineshop Hi Max, Could you explain why there is more danger of scrapping the part if you cut the thread from the headstock out. I would have thought the reverse was true but I trust your wisdom.
@@gillywild If you have the slightest miss engagement with the half nuts , you will de pitch the thread before you see it . Also not all threads allow for a thread relief to start from . Metric thread on an imperial leadscrew , upside down threading takes 3 times as long to line the tool up . I might do a video on it .👍
Max, great video. Another solution is to run your lathe in reverse, flip the cutter upside down (change to left handed one) and then you can cut the threads from the shoulder out with zero chance of a crash. Your ability to retract the cutter at the last moment is amazing. I suspect that I would never be able to pull that off.
Cheers Rob . I can see i may have to do a video to reveal the true down sides of this backwards threading caper ! Ask Joe Pie to cut a metric thread with an imperial leadscrew , to a shoulder with no thread relief ! 👍👍👍
Hi Max, nice job. Seeing you have to wind out the cross slide reminds me of why I loved the Holbrook I worked back in the sixties with the double cross slide for thread cutting.
Another nice part Max. I use see that type of threading done and thought I could never do that. So I started just trying it and it just started to click, and now I don't even think about it. Cheers👍
G'day Max, happy days buddy, apart from the great job of making what could be a tricky part, it's great to see you working in the new shop mate Keep up the good work, best wishes to you and yours 👍
Max I know how long it takes for a job like this I'm not a machinist but I've been a electrical repairman all my life and sometimes you just have to help someone out by the way another great job love watching your videos I pass several up on here but I stay with the original brand not these glory hounds
A metric thread & smaller lathe could have been another method. Nice variable gearbox could only dream for. Screwcutting is a prerequisite and there is processes that make the thread squaring, finish cuts and bevel. Solid milling spindle is what seperates the men from the boys. Excessive wear on Bridgeport with tank tracks is not recommended.
Totally agree with you on all fronts mentioned below and on the video. Especially about time it takes to make these one-off parts. In regards threading to a relief, I set up an indicator for the stop point and use the brake to stop there. What do you think?
That's the way to go if you have a brake . None of my machines except the JFMT lathe have brakes . Come to think of it , i have never used a lathe before that has a foot brake ! Reverse on the clutch has been the closest thing ! 👍
@@swanvalleymachineshop I don't think I would not have a brake, largely coz it is comfortable for me for thread cutting. I am not formally trained, so I am self taught to further my skills and supplement my other interests such as motorcycle restoration so watching and learning from guys like you is fascinating. Thank you. There are some very skilled and interesting people here in the West eh!
I'll bet that wasn't a fun thread to cut but nice to see you do it conventional and not 'American' (upside down and backwards 😂) That's the first time I've seen a lathe with Whitworth specific setting, nice. Are the other settings (module and DP) for making worms for worm drive?
Yes . 1, it does not come naturally to me . 2 , if you have a mis engagement , you will most likely scrap the part . 3 , If you have to keep the half nuts engaged , it takes a lot longer , 4, if you are not allowed to have a thread relief , you are screwed ! 👍👍👍
You Tube have some strict policy's on some content matter , hence i could not go into detail what the part fits . So a tractor part it is ! Part 1 has a clearer explanation , sort of ! Thanks 👍
Is "Conscription " only for machinists now Max, hope you get a 21 gun salute 🪖. Nice job all round, nicely done on mixing metric and imperial mics. Thanks for sharing
