1/10 Liebherr Excavator R 984 Litronic

[Markus K.]

here are some selfmade screw-pics:

[JAMMER]

Nice work on the screws but cutting the internal gear on a cnc mill that took some planning and skill with the CAD. Ed

[Markus K.]

Ed, the CAD-work wasn't sooo hard. I used CATIA V with a plugin for gears. So I had only had to type in some numbers and voila... a single file came out with over 30 MB

[ihbuilder]

welcome Markus great job on the model so far Your slew assembly is exactly the way I am making them on my cat385s . I have my internal drawn and programed for the cnc mill comes to about 2 hrs cutting time .Just to find time to cut them . How long did it take to cut yours out ?

[JAMMER]

Hi Markus are you sure you used a 0.4 end mill to cut your ring gear that is like a hair diameter? If I am not mistaken that is steel you cut how many end mill did you break? 0.4 is .0155 inches are you sure you got that figure right? If it is right that was some fine work a great job. Ed

[ihbuilder]

Originally Posted by JAMMER

Hi Markus are you sure you used a 0.4 end mill to cut your ring gear that is like a hair diameter? If I am not mistaken that is steel you cut how many end mill did you break? 0.4 is .0155 inches are you sure you got that figure right? If it is right that was some fine work a great job. Ed

Ed , quite plausible with right feeds and speeds to depth of cut hence the long run times . Also , rigidity of machine is a big + , the lil grizzly's will not handle that size without breaking them . I have run .01" already . another thing , tool run out will kill em in these sizes .