Does anyone else experience this with their Haas, I know they vary a bit but this seems absurd.

After lots of trial and error this is what I've found. The holes I drilled with through spindle coolant solid carbide drills, stubby first followed by a long drill. 165 sfm @.002 per rev. I started at .006 but the drills started to walk and produce unround holes. Dropping the feed allowed the drills to produce straight holes. I used carbide endmills for roughing and diamond coated tools for finishing, in both cases I ran 300-400 sfm using feeds I would use in aluminum. Seems odd but the material is easy to cut but the time in cut wears the tool, with a higher chip load the tools lasted longer. Overall the stuff is pretty stable, I was able to hit all my .003 true positions on the holes and pockets.

Right on I appreciate it, I try some stuff an see how it goes.

Thanks that is what i have so well see, any idea on speeds and feeds? Thanks for the input! I got some carbide tipped drills to try, any idea what i should run them at?

They are .397 and .438, i got some carbide tipped drills so those should do much better. Thanks for the input. I've machined a ton of 1000 but this glass stuff is completely different. Yeah I am finding that out, I am drilling .397 holes 5 inches deep and i cant even get through 4 holes before the drill dulls and walks. I just got carbide tipped drills to try so that should do much better. Do you have any idea what I should run the carbide at? I amm thinking 50-100 sfm at .005-.01 per rev.

Hi I recently got a repeat job that was made from Ultem 1000 in the past, the customer is wanted them out of 2300 this time and I am finding it difficult to machine especially with the drilling. I have tried running my surface footage from 40 up to 100 at .005 per rev with little success. After a few holes the drill dulls and over sizes the holes. I can not seem to find a lot of info on speeds and feeds for this stuff. I am using HSS drills with no coating, I tried to get my boss to get me diamond coated tools but the best he can do is TiN coated and cobalt drills. I have one carbide drill but I am uncertain at what speeds to run it at. Any help would be greatly appreciated, this is not been a great start to the week.

Not bad, I see a .001 difference after my hour lunch. These machines simply suck.

I use a Logitech Ergo and absolutely love it. It was a bit of an adjustment to get used to the trackball but I find its faster and far more comfortable.

I really appreciate the input. I was attempting to use unified before but I kept getting unsupported tool errors, after selecting the z construction plane those errors went away. I am now making good progress on this part. Thanks again!

Hi everyone I was curious what toolpaths other guys out there are using to surface undercut features on their 5 axis mill. I am trying machine some radius on the bottom of a hole and am having a heck of a time figuring out a good way to do this. I am currently trying to get port 5 axis to work and am having quite a few issues. Any help would be greatly appreciated.