Hacking Haas

Does anybody have any experience hacking any Haas machines? i.e., increasing the 4000 RPM spindle speed limit on certain mills.
Hugh
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Hugh Jardon wrote:

an upgrade might do it.
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Michael Gailey
Artistic CNC Mill, Router and Engraver Programming
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Hugh Jardon wrote: > Does anybody have any experience hacking any Haas machines? i.e., > increasing the 4000 RPM spindle speed limit on certain mills.
Hugh:
"Hacking" has such a negative connotation. I assume you're talking about a Haas ToolRoom mill. First, any such modification would be certain to void the warranty. Second, I believe the TM-1 is not an enclosed machine, so 6,000 RPM is likely to spray chips and coolant everywhere. That's probably why they limited it 4k RPM - as a safety factor. Third, If you have rigid tapping, changing parameters may adversely effect that feature, or not. But if you're determined to experiment in increasing the RPM anyway, you can go to CNCZone, choose archive, go to "Haas Mills", and the thread "How do i bypass 4000 rpm on haas TM2". Here is an excerpt of a post from that thread:
===========================================================================jwarren 8-06-2005, 12:48 PM OK guys here's the deal. Its not common knowedge, but the spindle/motor that is used in the TM-1/-2 is the same spindle/motor configuration used in the base model Minimills (with only a few minor differances). The max RPM of the Minimills is 6000. Your right, its not as easy as just changing Parameter 131. You have to change Parameter 183 as well, keeping the ratio that you increase these two values the same. No unlock codes are needed. ===========================================================================
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