+1000 Where I live we go from 35 deg c days in the summer to 3-5 deg (highs) during the winter and this fluctuation not to mention the fluctuation of a machine casting warming up over a few days constant machining plays havoc with machine accuracy. This is compounded on a 5 axis machine. We recently temperature controlled the environment around our high accuracy machines and have seen a great improvement from it.

The HAAS will struggle to keep up with that feed rate even with Highspeed machining turned on. I wouldn't feed at more than about 120 inch/min if you want to achieve an accurate part.

That's a bit of a personal question

Nice video, we have used exactly the same approach before for cutting cam paths - works a treat - as your video shows.

I like you look after a number of installs here at our work place and have the exact same frustrations every time I have to update to a new version, build a new PC etc, and then when I do ask a question about a problem with Mastercam I am always told by cncsoftware that our file structure is not correct and mastercam is not designed to have files saved and accessed from the network ! Hardly a real world setup to have all your machine def, post, tool library etc files stored locally on numerous computers through out the work place ! In my opinion this is an area of Mastercam that could do with some real work to smooth installation and updating to suit real world network environments.

Ron use the hybrid toolpath that Jparis did but set the top face as a check surface and then set it to leave 0.0001" on the check surface and you will get the cutter starting at the edge.

We use the prototyp calculator (downloadable) for a lot of stuff, even competitors cutters, works on volumetric calculations i.e. depth vs radial step and is a great starting point for the HSM toolpaths. As a lot of people suggest start with about 10% radial and 1-1.5 D for depth - machine dependant of course.

+1000

Hi Mark it's there just not obvious, multi cuts page - Tool shift - constant for each slice - set to a negative value Beat me to it

Make sure you are using the specified Mobil Vactra 2 oil, we had issues when we deviated due to the wrong viscosity causing the pressure alarm.

Hi Gcode, is that a typo or are you genuinely happy with a .020" accuracy on a part that big ?

I learnt something with the circle mill example of having the ramp angle set to 0 to make the tool plunge at the specified helix radius, but we usually just do it like Jeremy with a dynamic area clearance toolpath, set your helix angle to 0 and your top of stock to the same height as your finished depth and use the helix radius to achieve the cutter start point just inside the clearance hole you have drilled. Hope this makes sense

How about something like this, and you could use thin wall finishing if you wanted . TEST.MCX-7

Very similar problem that was sent to QC, head was tilted over to access some angles slots ,but would retract to some random clearance plan miles above the job on every retract. Anyway I am told it is being looked at.

Hybrid !

+1

use high speed core roughing

This depends on your reseller !!

Try turning on the arc lead in and out with a line also.

Unfortunately I am working and will be until about 11pm tonight ! Cutting some quite tricky cavities that require some monitoring - 25 hrs cutting in each just for the finishing !

Merry Christmas and Happy New Year to everyone on the forum. I hope everyone has a great Christmas break and enjoys some r&r thanks to everyone that has helped out with any queries or issues I have had over the year.

This is because you are using an non standard WCS in your stock setup - try changing your stock setup WCS plane to TOP and it works fine. This is a bug that I have reported to QC.

Get Gcode verification of some sort . The first time you stack it on a re-postion move that wasn't simulated in the mastercam simulation because it was generated at the posting stage you will wish you had it. Especially if it is a decent stack that throws out the machines axis and wrecks a spindle, Gcode verification will seem like a cheap safety !!

+1

Subject edited, hope this suits everyone ?