Luke Rickert
Hot Rolled
- Joined
- Oct 24, 2007
- Location
- OSLO
Hi all am looking into having my Schaublin 135 bed reground. There is a mixture of mystique and magic around these machines but I would like to get a good handle on the facts without the BS. What do I need to require of the grinding house to achieve the performance this machine is capable of by design.
I am a fairly experienced mechanical engineer but do mostly analysis have never done drawings for grinding or all that much GD&T for that matter so it seems like the people actually do the grinding might know more about what goes into getting the results.
Those of you who do precision way grinding what are the typical ways of defining the result (straightness over a distance, flatness ... ) surface finish (Ra etc)
This is in Europe but I can deal with inch dimensions (being born and raised in the USA)
Once setup, scraped, leveled etc the machine should be able to cut extremely straight (say 0,002mm over 200mm) or 0.0001 inch in 8 inches. The bed is going to need to be better than that I presume, so something like 0,001mm over 500mm with a very fine surface finish (RA 0,4 or better)
Any thoughts?
thank you
Luke
the bed in question is shown in these drawings: Schaublin 135 Bed.pdf - Google Drive
I am a fairly experienced mechanical engineer but do mostly analysis have never done drawings for grinding or all that much GD&T for that matter so it seems like the people actually do the grinding might know more about what goes into getting the results.
Those of you who do precision way grinding what are the typical ways of defining the result (straightness over a distance, flatness ... ) surface finish (Ra etc)
This is in Europe but I can deal with inch dimensions (being born and raised in the USA)
Once setup, scraped, leveled etc the machine should be able to cut extremely straight (say 0,002mm over 200mm) or 0.0001 inch in 8 inches. The bed is going to need to be better than that I presume, so something like 0,001mm over 500mm with a very fine surface finish (RA 0,4 or better)
Any thoughts?
thank you
Luke
the bed in question is shown in these drawings: Schaublin 135 Bed.pdf - Google Drive