I just wonder why you want to put such a nice DRO on a worn out old manual mill that needs the ways scraped and the screws are worn out? You will not be able to make an accurate part to the abilities of your DRO if the table won't stay where you put it and your Z is always changing because your table moves up and down as you move X and Y because the ways are worn... It's the silk purse/sows ear thing.
And if cost is an issue then a cheaper DRO would be more fitting for an old manual mill and more suited to the jobs one might do on that type of equipment. Do you really expect to make parts with a +- 0.005mm tolerance on an old manual mill just because you add a DRO? John On 2 Feb 2008 at 3:57, [EMAIL PROTECTED] wrote: > The cheapo (relatively) DRO I'm looking at is accurate to 0.005 mm / > 0.00019" which is good enough to be getting into the realms of > temperature compensation for thermal expansion of the work. > h/ lacking a DRO, the answer is to retrofit my machine with precision > ballscrews and to scrape the ways etc, a prospect that will take about ten > time the time of fitting a DRO and cost at least five times as much in > money. ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
