Retrofitting a 1986 Maho MH400E

No eBay APP ID and/or Cert ID defined in Kunena configurationI've got to check my library but I am pretty sure these will do:

Or you can get the units I got, EXE 610 C. They have 10 times the resolution (of the 602), and with the standart scales with 20 um repetition give a resolution of 0,1 um!

But consult the documentation for the exact model numbers to make sure you get the ones with the correct resolution. There are many alternatives out there. Also ones where you can sett the resolution to many alternatives.

On my mill this gives a smoother movement on low speeds. I definately know that I won't be able to achieve 10 times the accuracy by doing this. But resolution on slow movements is better, and velocity is calculated more precise.
For more details on my findings have a look in the thread over at PM. I wrote more details about my findings on this there, and don't feel like repeating that (and it's a long time ago so I don't even remember the details that well anymore).
I just had a quick look, and you get these just as cheaply as the 602. Even though someone thinks they can get $500 or more for them..... they go lower than $50, and there is no reason to pay a premium for them. Either they work or they don't. It's not an item that wear out....

Anders

That is a great input Anders. Thanks. Given that a MESA 7i77 and 5i25 has no speed problem processing the higher resolution, this would be the way to go. If you want to get really crazy, the 660B series can be configured for 400x interpolation.

My 1µm 602D/5-F has the internal switches for selecting 1µm or 5µm resolution.






... whereas the 602/1-F is obviously older from the size of the IC's and has a row of soldered jumpers.




I would bet that a different configuration of jumpers would provide the higher resolution. There is provision for 5 jumpers, which matches with the later series 5 switches, but the change need to modify it from 5µm to 1µm isn't obvious, given that the jumpers from each end are currently one connected and one open, this does not map to the switch configurations of the later EXE's.
Mark

Don't want to interrupt the conversation.
Just wanted to post pictures of some cosmetics I did today.

Before:


After:


First chips I made with this machine:

Congratulations.

Hi Hanno, cool first part!
Mark