I felt the same when I first started out. I tried to stick to "generic" geometries like CNMG or APKT. I ended up with some proprietary cutters, like the Sandvik coromill which uses an R390 insert and I really liked it. That one I used a lot and went to ebay to get inserts for about $11ea, which...
I think there will be a lot of variables like sales volume, rebates, etc., but what's a roundabout number for profit margin on higher end carbide inserts and end mills? Are the small, independent stores making 25% gross? Or is it more like 10%? With as high as the retail cost is I'd guess...
I used to run this exact program on a lathe with 0T but on my Hardinge Cobra with 21T control I get a #10 Improper G-Code alarm when using canned cycles. I've looked through the parameter manual and have even talked to a Fanuc tech but haven't had luck finding what parameters to change to enable...
Thanks guys. I'll have 2" of stock to clamp onto in the vice so it shouldn't move. For the open pockets I'll try a nice sharp HSS end mill. I'm taking material off the top too and I think I'll try my 2" Coromill with aluminum inserts there.
Edit: Does 150sfm and .010IPT sound reasonable?
Without getting into custom tooling, I'd probably drill, bore, then use a full radius 90° groover to get most of the sphere and then use a small VNMG to finish the far end where the groover doesn't fit. The VNMG might be able to finish the whole sphere if there is enough offset.
I rarely run anything besides steel so I'm not sure what the best approach is with this. I need to hog out a bunch of material in UHMW plastic, about 2" deep. My first thought was to use a square shoulder inserted shell mill making 1/4" deep passes, but I also have some 1" HSS end mills that I...
ISE came through big time! $45 and an hour later I'm back in business. I almost can't believe it was this easy... I'm waiting for the machine to start smoking again.
Kind of a long shot, but I had a capacitor blow on a board of one of my machines. Rather than shipping it to a repair place I'd like to find a local shop or tech that can repair it. I'm having a hard time finding a place, which is odd considering the number of manufacturing companies in the area...
I shot off an email to verify the tolerances. They also want .0005" profile tolerance of the machined flat surfaces after welding so I think this maybe be a bit over-engineered. I believe the bores will have bearings pressed in so I can see the need for holding alignment but not to this degree.
I'm trying to come up with an approach for this. It's a stainless steel weldment, about 12" long x 6" wide. I will need to put in the 3.5" hole on each end, starting from solid. The hole size tolerance is .001" total and the two need to be located within .0002" of each other on center. I'm...
My experience is limited compared to a lot of people here but I've had good luck with Tungaloy. In addition to the grades you need to be looking at chip breaker geometry also. Even for my small shop I've had sales engineers come out and spend an hour or two and burn through a bunch of different...
Fusion 360 has an alternating flank infeed option and I have it posting thread cutting with G92. Does G92 support variable Z position starts? I want to try this but I'm using customer supplied castings and don't want to risk scrapping any.
This is the code I get. It's a 3.125"-8 internal...
I think Hardinge sent me instructions for a 42 not a 65 so the reference distances are wrong. I found the right ones in my manual. Gonna give it a shot...
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