Hi nice to be watching the test bar efforts you are applying we are doing this to a very small scale. Thank you we are enjoying your build after taking the whole thing over on your own as mentioned in the last video. Look at that little copper seal interesting discoveries with these older (well aged) machines, we love the ingenuity and the designs that allowed these machines to last so many years with care and attention. Lance & Patrick.
You were first up on the comments ! Thanks for watching and commenting. I have learned a lot from stripping down this lathe - as has been said by a number of viewers Holbrook produced top of the range machine tools in their time over a few decades - the equal or better than anything out there in the world. They had some relationship with Hendy in the states and the lathes share some common design elements . I have a pack of your channel stickers Im looking to display as soon as I get the lathe into its final position - looking forward to that day !
Yeh, I thought that 4 or 5 years back when I sat and watched This Old Tony rebuilding his surface grinder in the days when he was a mere mortal - from there it went to Muller Nick and then I found an old shaper & Practical Machinest etc - you know the rest ! Nice skill set to build though and I think my machining has become more reliable since I started to learn this stuff. Thanks for watching and commenting - I really do appreciate it. All the best Mat
It was an ebay find and needs a bit of work to flatten the magbase so it sits flat. The switch was solid when I got it and the knuckles rusted up - cleaned up to ok so far. The Mercer DTI and stands are in my view some of the best out there - the recent dti's I got serviced are a joy. All the best Mat
Hi Steve, I have a long list of your videos awaiting my attention - lack of tablet and failing eyesight (so the phones next to useless) are reducing my viewing time to next to nothing. Am in the process of getting my TV hooked up to RUclips All the best mate, and give a squeeze to your good lady :-)
You might have missed it, the spindle is set to point forward and up of the true plane off the bed. The dimensions are from a text book used for such settings. So in short, yes
Its measuring up great mate, nice to see that spindle lining up. I think Nick Muller has a pretty decent video scraping bearings, looks straight forward enough.
Hello Duncan, I will take another look especially at Muller Nicks channel. Cant say I recall seeing one but its a couple of years since I looked. Thanks for stopping by and watching. Cheers mat
@@lookcreations Here go man ruclips.net/video/iJd8Zwd9L1k/видео.html Hes got some lols up there relatively recently, welcome change in the old enginmaneering scene ;)
Hi Mat, Chronos got a Dasqua dti magnetic stands with fine adjust, my experience with Dasqua stands (got 2) is that they are very good, the dti clamp is not Noga quality, but neither is the price, small red chinesium stands can easily be made much better by deburring the inside rods and lapping the joint faces.
I did have an old catalogue from chronos - back when I bought things. It never had prices displayed. I shall do some digging around and see if I can find the stands on line. To be honest, the little 5" knock offs work fine as arms and I should just make myself a flexture to give me fine adjust. Its on the list. Cheers Mat
I wonder if putting oil in the bearings would change the measurements. Good stuff you have going. I give ya a hand if there were not so much water between us.
When I discussed it with Chris a while back - he made the point that if you lubricate the bearings you have to add downward pressure from the upper bearing halves to squish the oil out from below to get the measurements repeatable - makes sense to me. I know when I set the gib up on my shaper - it has to be done 'dry' or all manner of issues crop up and that has 0.001" clearance each side on the dovetails !
It is getting to the stage where the pride I had of being British is being rapidly eroded by the Government on the national and international stage. Mind - it takes a long time before anything actually changes in the workshop :-) All the best mat
@@lookcreations Hi Mat, yes the last 3 years has shown current elected government to be a bunch of self centred narcissistic wannabes, but they exceed in dithering/procrastination. With regard to the spindle bearings, I was taught to tap quite hard on the shaft in several radial directions to help seat in between scraping/s, this was on brass/bronze to copper alloys, and to industrial silver. The application was for electrical resistance welding. Where is the thrust bearing on the spindle?. Best regards John.
@@bostedtap8399 - In honesty, I never tried - I have a pdf copy of the book. I was working my way through it on my tablet - the tablet is now defunct . I have the pdf saved on line and when I have time I pull it up and take a look via my desktop PC. I would much prefer a hard copy as its easier on my eyes than trying to read it on a screen. Same goes for the Machine Reconditioning book. My pockets are too shallow for the sums demanded for reprints or originals which I have found so far . I wonder how many copies are hiding away on dusty shelves in homes ? Cheers Mat
Looking very good Matt. it will be more than interesting to see how the actual turning tests go once its all back together. For the most part I'd agree with you Jan, and yes they would catch any metallic contamination . But I also suspect one or more have been through this lathe before with those missing copper rings. Oil resistant plastic at the time of it's manufacture wasn't in much use due to there then primitive plastic technology. Holbrook were / are an extremely high quality lathe and they didn't cut many corners.So my best guess is there were probably brass disks with a light hand press fit in those copper rings to seal the holes so they could be popped out with a screw driver blade if the head stock needed removing. Industrial speaking, machine tools don't see the kind of preventative maintenance they should with some company's. And the state of the head stock taper as Matt has mentioned before is proof this one wasn't treated well at all. So that's why Matt found that large build up in those holes. Anyone personally owning a machine tool that fully understands the importance of proper and timely oil changes and there's zero doubt Matt already does, is going to be changing oil and flushing out the head stock so any build up of wear particles isn't going to be an issue. Yes the oil will very slowly change color from ultra fine metallic particles that are so small they float within the oil if the oil isn't changed as it should be, but those are so small they have little effect to accelerate any wear from them.Non detergent oils designed for machine tools where there's no pump and filter system in place will let any slightly larger debris drop to the bottom and stay there. That's why when changing oil it's a good idea to flush the internals until there clean with something relatively cheap like diesel. If it were me I do think I'd add a couple of rare earth magnets maybe in the corners of that head stock sump so they'd quickly catch any ferrous metal that happens by if they can be reached without tearing the lathe down to this level of disassembly for cleaning during an oil change. Same for the carriage sump as well.
Thats true enough- there is a sump in the headstock though and I will as suggested below be adding a magnet. I do want to reduce oil loss though. Cheers Jan
en.wikipedia.org/wiki/Bonded_seal Dowty washers would work well as seals on the anchor screws. Better seal than a copper washer, and more re-usable than a wipe of polymer.
Hi nice to be watching the test bar efforts you are applying we are doing this to a very small scale.
Thank you we are enjoying your build after taking the whole thing over on your own as mentioned in the last video. Look at that little copper seal interesting discoveries with these older (well aged) machines, we love the ingenuity and the designs that allowed these machines to last so many years with care and attention.
Lance & Patrick.
You were first up on the comments ! Thanks for watching and commenting. I have learned a lot from stripping down this lathe - as has been said by a number of viewers Holbrook produced top of the range machine tools in their time over a few decades - the equal or better than anything out there in the world. They had some relationship with Hendy in the states and the lathes share some common design elements . I have a pack of your channel stickers Im looking to display as soon as I get the lathe into its final position - looking forward to that day !
I doubt a lathe restoration is something i'll ever take on but i always like to watch ... looking good ... Andy
Yeh, I thought that 4 or 5 years back when I sat and watched This Old Tony rebuilding his surface grinder in the days when he was a mere mortal - from there it went to Muller Nick and then I found an old shaper & Practical Machinest etc - you know the rest ! Nice skill set to build though and I think my machining has become more reliable since I started to learn this stuff. Thanks for watching and commenting - I really do appreciate it. All the best Mat
Great progress . I have not seen a the large stem Mercer bases for a long time . Cheers .
It was an ebay find and needs a bit of work to flatten the magbase so it sits flat. The switch was solid when I got it and the knuckles rusted up - cleaned up to ok so far. The Mercer DTI and stands are in my view some of the best out there - the recent dti's I got serviced are a joy. All the best Mat
@@lookcreations I use a Mercer DTI as well but its in bad need of a service .
That's looking like a lathe again 😁👍. Really nice work Matt.
Hi Steve, I have a long list of your videos awaiting my attention - lack of tablet and failing eyesight (so the phones next to useless) are reducing my viewing time to next to nothing. Am in the process of getting my TV hooked up to RUclips All the best mate, and give a squeeze to your good lady :-)
Hey mate, Did you account for bar sag in the horizontal plain?
You might have missed it, the spindle is set to point forward and up of the true plane off the bed. The dimensions are from a text book used for such settings. So in short, yes
Its measuring up great mate, nice to see that spindle lining up. I think Nick Muller has a pretty decent video scraping bearings, looks straight forward enough.
Hello Duncan, I will take another look especially at Muller Nicks channel. Cant say I recall seeing one but its a couple of years since I looked. Thanks for stopping by and watching. Cheers mat
@@lookcreations Here go man
ruclips.net/video/iJd8Zwd9L1k/видео.html
Hes got some lols up there relatively recently, welcome change in the old enginmaneering scene ;)
Coming right along!
Hi Mat, Chronos got a Dasqua dti magnetic stands with fine adjust, my experience with Dasqua stands (got 2) is that they are very good, the dti clamp is not Noga quality, but neither is the price, small red chinesium stands can easily be made much better by deburring the inside rods and lapping the joint faces.
I did have an old catalogue from chronos - back when I bought things. It never had prices displayed. I shall do some digging around and see if I can find the stands on line. To be honest, the little 5" knock offs work fine as arms and I should just make myself a flexture to give me fine adjust. Its on the list. Cheers Mat
Getting there. Hoping your bearing scraping will go twice as fast with nothing but perfection. And then some.
Slow and steady without error is about as much as I dare wish for ! thanks for watching. All the best Mat
I wonder if putting oil in the bearings would change the measurements. Good stuff you have going. I give ya a hand if there were not so much water between us.
When I discussed it with Chris a while back - he made the point that if you lubricate the bearings you have to add downward pressure from the upper bearing halves to squish the oil out from below to get the measurements repeatable - makes sense to me. I know when I set the gib up on my shaper - it has to be done 'dry' or all manner of issues crop up and that has 0.001" clearance each side on the dovetails !
Excellent set up, certainly a world apart from Brexit!.
Looking forward to seeing further development.
Best regards from the Black Country.
It is getting to the stage where the pride I had of being British is being rapidly eroded by the Government on the national and international stage. Mind - it takes a long time before anything actually changes in the workshop :-) All the best mat
@@lookcreations Hi Mat, yes the last 3 years has shown current elected government to be a bunch of self centred narcissistic wannabes, but they exceed in dithering/procrastination.
With regard to the spindle bearings, I was taught to tap quite hard on the shaft in several radial directions to help seat in between scraping/s, this was on brass/bronze to copper alloys, and to industrial silver. The application was for electrical resistance welding.
Where is the thrust bearing on the spindle?.
Best regards John.
Theee is a large thrust bearing last item on the spindle inside rear. Nut on thx spindle at the rear.
@@lookcreations okay, thanks. Did you manage to open the link on my reply for previous video?.
@@bostedtap8399 - In honesty, I never tried - I have a pdf copy of the book. I was working my way through it on my tablet - the tablet is now defunct . I have the pdf saved on line and when I have time I pull it up and take a look via my desktop PC. I would much prefer a hard copy as its easier on my eyes than trying to read it on a screen. Same goes for the Machine Reconditioning book. My pockets are too shallow for the sums demanded for reprints or originals which I have found so far . I wonder how many copies are hiding away on dusty shelves in homes ? Cheers Mat
i would not fit a plug in the holes.
they managed to collect impurities out of the oil , so they might just have a purpose in keeping the oil clean.
Looking very good Matt. it will be more than interesting to see how the actual turning tests go once its all back together.
For the most part I'd agree with you Jan, and yes they would catch any metallic contamination . But I also suspect one or more have been through this lathe before with those missing copper rings. Oil resistant plastic at the time of it's manufacture wasn't in much use due to there then primitive plastic technology. Holbrook were / are an extremely high quality lathe and they didn't cut many corners.So my best guess is there were probably brass disks with a light hand press fit in those copper rings to seal the holes so they could be popped out with a screw driver blade if the head stock needed removing. Industrial speaking, machine tools don't see the kind of preventative maintenance they should with some company's. And the state of the head stock taper as Matt has mentioned before is proof this one wasn't treated well at all. So that's why Matt found that large build up in those holes. Anyone personally owning a machine tool that fully understands the importance of proper and timely oil changes and there's zero doubt Matt already does, is going to be changing oil and flushing out the head stock so any build up of wear particles isn't going to be an issue. Yes the oil will very slowly change color from ultra fine metallic particles that are so small they float within the oil if the oil isn't changed as it should be, but those are so small they have little effect to accelerate any wear from them.Non detergent oils designed for machine tools where there's no pump and filter system in place will let any slightly larger debris drop to the bottom and stay there. That's why when changing oil it's a good idea to flush the internals until there clean with something relatively cheap like diesel. If it were me I do think I'd add a couple of rare earth magnets maybe in the corners of that head stock sump so they'd quickly catch any ferrous metal that happens by if they can be reached without tearing the lathe down to this level of disassembly for cleaning during an oil change. Same for the carriage sump as well.
Thats true enough- there is a sump in the headstock though and I will as suggested below be adding a magnet. I do want to reduce oil loss though. Cheers Jan
It`s coming along Mat. The lathe will get lots of use before Brexit is resolved!
en.wikipedia.org/wiki/Bonded_seal Dowty washers would work well as seals on the anchor screws. Better seal than a copper washer, and more re-usable than a wipe of polymer.