shapeaholic
Stainless
- Joined
- Oct 14, 2003
- Location
- Kemptville Ontario, Canada
Hello all,
With apologies to Harry Bloom for the thread title, I'm starting a thread detailing the rebuild of my Hendey 9x36 T&G lathe.
I bought this project machine last summer and although it is substantially complete and "mostly" working, recent inspection has shown that it has lived a long well used life.
When I got it I recognized that the bed was worn, but that was not too big a deal right??
I have spent the last few day stripping the machine down into large chunks, and have set up the bed as level as I can and have started to measure.
The bed has a worn area of aprox 12" long, right in front of the chuck. this wear is primarily on the front face of the front "V" and to a lesser extent on the back side of the back "V".
As best as I have been able to measure it is worn about .010"
The red markings show the unworn area toward the tailstock end. ( right hand side of the picture)
This wear combined with another .010" or so on the carriage "V" makes for a drop of .020"
in this area.
It is pretty obvious that two things happened with this lathe
1) A lot of work was accomplished using this area of the bed. This also shows up in considerable wear on the carriage feed rod keyway which is worn in a corresponding area.
2) The lathe was not lubricated regularly. This machine does not have a carriage oil system like a 10EE, but has oil cups and large felt wipers on the carriage wings. These oilers were buried under several layers of paint and the felts were quite hard and dirty.
A careful look at the picture will also show the wear on the tailstock slide way. This bed is a little unusual in that it has 2 outer inverted "V"s and flat / wide V combination, tailstock slideway
This slideway is not too badly worn, only measuring .0025" wear for an area about a foot long, half way down the bed. a small portion of the slide is not worn at all as the tailstock does not overlap it. this can be seen as the red stripe in the middle of the bed.
A quick inspection of the machine during dis-assembly shows that there is not much wear in the mechanicals of the machine, other than a couple of worn bronze bushings and a couple of bad ball bearings.
This machine was designed to be grease lubricated for the most part.
Hopefully tomorrow I will be able to spend some time charting the wear like Harry did on his project.
Can anyone suggest a way to get better pictures of the bed?
Cheers
Pete
With apologies to Harry Bloom for the thread title, I'm starting a thread detailing the rebuild of my Hendey 9x36 T&G lathe.
I bought this project machine last summer and although it is substantially complete and "mostly" working, recent inspection has shown that it has lived a long well used life.
When I got it I recognized that the bed was worn, but that was not too big a deal right??
I have spent the last few day stripping the machine down into large chunks, and have set up the bed as level as I can and have started to measure.
The bed has a worn area of aprox 12" long, right in front of the chuck. this wear is primarily on the front face of the front "V" and to a lesser extent on the back side of the back "V".
As best as I have been able to measure it is worn about .010"
The red markings show the unworn area toward the tailstock end. ( right hand side of the picture)
This wear combined with another .010" or so on the carriage "V" makes for a drop of .020"
in this area.
It is pretty obvious that two things happened with this lathe
1) A lot of work was accomplished using this area of the bed. This also shows up in considerable wear on the carriage feed rod keyway which is worn in a corresponding area.
2) The lathe was not lubricated regularly. This machine does not have a carriage oil system like a 10EE, but has oil cups and large felt wipers on the carriage wings. These oilers were buried under several layers of paint and the felts were quite hard and dirty.
A careful look at the picture will also show the wear on the tailstock slide way. This bed is a little unusual in that it has 2 outer inverted "V"s and flat / wide V combination, tailstock slideway
This slideway is not too badly worn, only measuring .0025" wear for an area about a foot long, half way down the bed. a small portion of the slide is not worn at all as the tailstock does not overlap it. this can be seen as the red stripe in the middle of the bed.
A quick inspection of the machine during dis-assembly shows that there is not much wear in the mechanicals of the machine, other than a couple of worn bronze bushings and a couple of bad ball bearings.
This machine was designed to be grease lubricated for the most part.
Hopefully tomorrow I will be able to spend some time charting the wear like Harry did on his project.
Can anyone suggest a way to get better pictures of the bed?
Cheers
Pete
Last edited: