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4GSR
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I have setup and started scraping on my saddle. As you will see in the posted pictures, I have taken a Horrible Freight welding table and turned it into a universal scraping table. Worked out perfect, well almost, good enough for me. Scraping from one direction, it's stable, but from the other direction, it shakes. I just put my foot down the base and stabilize it while I scrape. Starting off, I "fuzz" down the ways or shears (depending on which side of the World you are on) to get a fairly clean surface to work from. This saddle has less than 0.003" wear on the shears that rub against the way. Amazing shape for a 57 year old lathe.
Next, I took and scraped heavy the middle length of the areas on each shear. This provides a relief in the middle of the bearing surfaces on the saddle. This is something that some people do and others do not. It may also keep the slide from "rocking" giving you a false impression too. Then I took a impression to see what kind of pattern I get.
Almost all four corners touching! Touching on the end which is away from the headstock end of the saddle. So, starting off, I will heavy scrape the bottom right hand way surface, which is the flat way and take another impression and see if I get better four point contact on the ways. Right now, I will not touch the vee ways. I'll report on my progress later this weekend. Ken
Next, I took and scraped heavy the middle length of the areas on each shear. This provides a relief in the middle of the bearing surfaces on the saddle. This is something that some people do and others do not. It may also keep the slide from "rocking" giving you a false impression too. Then I took a impression to see what kind of pattern I get.
Almost all four corners touching! Touching on the end which is away from the headstock end of the saddle. So, starting off, I will heavy scrape the bottom right hand way surface, which is the flat way and take another impression and see if I get better four point contact on the ways. Right now, I will not touch the vee ways. I'll report on my progress later this weekend. Ken