Cracking gesture you did there for the sick fellow, 10/10 to you for that. I hope it spurs the chap on to better health - not enough people doing good deeds for others at the moment. I’ll shut up yapping, just good on thee miduck :)
One of the engineers at work told me once that he worked in a place where they had a really high precision ground bar which was kept in a padded felt lined wooden box that they used to use to set the lathe tailstocks up with. The idea was that you put it between centres and use a clock gauge on the carriage to get you somewhere near and then you'd take it out and then turn a bit of bar and then measure it... but somebody put a cut on the good bar by mistake! 😂
Morning John, my old Harrison never runs perfectly true, thanks for doing these tips, btw I actually bought the 140 partly because of you 😂, lots of love to you and yours Ralfy
There are live centres, dead centres and revolving centres. The one in the headstock spindle is the live centre. Put a solid centre in the tailstock and it's a dead centre. The one you had in the tailstock is a revolving centre.
Aye, all good atween centres, stick a long ground bar in yer chuck an watch the waggle, ye will be surprised. then try yer collets etc. rinse an repeat. When was the last time ye turned atween centres. The spindle taper and the tailstock taper are fine for that work, but a a chuck or collets throws it all awry if the jaws are worn. Same with the tailstock, a drill chuck might be 50 thou aff centre. Not complaining just saying, precision has to be set to both ends with the collets/chuck that you will use on the part. 71 year auld mistake fixer here, a bit of swarf in a taper can junk the spindle you are turning. I was trained by a ww2 toolmaker, he was amazing, unlike starmers dad. He is a fool maker.
Hi John, I've been given an old thick leather bag full of engineers tools, among them are 3 sets of micrometers and would you believe it a micrometer ball attachment which fits to the anvil or spindle on external micrometers - to enable round or irregular surfaces to be measured! I didn't know what the hell it was at first until I researched it. Have you ever used one when measuring round stock?
The ball anvil attachment is used to measure the wall thickness of tubing or cylinders....the ball goes on the inside of the tube to accommodate the inner radius.
To anyone sitting on the fence in regards to supporting John on patreon, Ive been happily supporting him since he started his patreon page. The quality and the amount of content he makes available cant be beaten. Id highly recommend doing it because you really are getting value for money, especially compared to other larger youtubers. Also hit the subscribe button its costs nothing.
John, I appreciate that you show methods for doing things that dont cost a prohibitive amount of money.
Cracking gesture you did there for the sick fellow, 10/10 to you for that. I hope it spurs the chap on to better health - not enough people doing good deeds for others at the moment. I’ll shut up yapping, just good on thee miduck :)
One of the engineers at work told me once that he worked in a place where they had a really high precision ground bar which was kept in a padded felt lined wooden box that they used to use to set the lathe tailstocks up with. The idea was that you put it between centres and use a clock gauge on the carriage to get you somewhere near and then you'd take it out and then turn a bit of bar and then measure it... but somebody put a cut on the good bar by mistake! 😂
Great video John.
thanks john.
Morning John, my old Harrison never runs perfectly true, thanks for doing these tips, btw I actually bought the 140 partly because of you 😂, lots of love to you and yours Ralfy
my lathes running parallel now and its it's all your fault !!!!! hehehehehe thanks mate.
There are live centres, dead centres and revolving centres. The one in the headstock spindle is the live centre. Put a solid centre in the tailstock and it's a dead centre. The one you had in the tailstock is a revolving centre.
Thanks for clearing that up Regards John
Great video John, keep'um coming.
Aye, all good atween centres, stick a long ground bar in yer chuck an watch the waggle, ye will be surprised. then try yer collets etc. rinse an repeat.
When was the last time ye turned atween centres. The spindle taper and the tailstock taper are fine for that work, but a a chuck or collets throws it all awry if the jaws are worn.
Same with the tailstock, a drill chuck might be 50 thou aff centre. Not complaining just saying, precision has to be set to both ends with the collets/chuck that you will use on the part.
71 year auld mistake fixer here, a bit of swarf in a taper can junk the spindle you are turning. I was trained by a ww2 toolmaker, he was amazing, unlike starmers dad. He is a fool maker.
Starmer's dad made a right tool there eh?
Great video.
Hi John, I've been given an old thick leather bag full of engineers tools, among them are 3 sets of micrometers and would you believe it a micrometer ball attachment which fits to the anvil or spindle on external micrometers - to enable round or irregular surfaces to be measured!
I didn't know what the hell it was at first until I researched it. Have you ever used one when measuring round stock?
The ball anvil attachment is used to measure the wall thickness of tubing or cylinders....the ball goes on the inside of the tube to accommodate the inner radius.
@@howardosborne8647 Thanks
John what happened to jet engine??
He ran it.
To anyone sitting on the fence in regards to supporting John on patreon, Ive been happily supporting him since he started his patreon page. The quality and the amount of content he makes available cant be beaten. Id highly recommend doing it because you really are getting value for money, especially compared to other larger youtubers. Also hit the subscribe button its costs nothing.
Is it just me, or is the audio scratchy?
Been playing with mike settings