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  1. U

    What's the profit margin on carbide tools?

    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...
  2. U

    "Improper G-code" alarm when using G71 on Fanuc 21T

    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...
  3. U

    Tooling for milling UHMW

    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...
  4. U

    Looking for a Cleveland area circuit board repair shop

    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...
  5. U

    Identifying inserts for an Ingersoll insert drill.

    Anyone know what inserts go into this? And insert screws? Ingersoll A11204521RS1 01127-L. Their website hasn't been any help for this relic.
  6. U

    Holding .0002" position between bored holes.

    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...
  7. U

    Alternating flank infeed with G92 threading

    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...
  8. U

    How to load parameters? Fanuc 21T

    I got a dead backup battery alarm on my Hardinge lathe and thinking it won't hurt anything since it's already dead, I pulled it out to take to the local battery place. Now when I start the machine I get a 910 RAM Parity (4N) alarm so I think my dumb mistake wiped all the parameters. How do I...
  9. U

    Turning a casting, how would you approach this?

    I'm looking at doing some secondary turning on these castings. I have an old jig that mounts in a chuck and the other side has an octagonal recess with set screws to hold the raw casting. So using this I have some options: 1) Turn larger face in the jig first then chuck on the 4.625" diameter to...
  10. U

    Spindle cooling unit crapped out. Hitachi Seiki VK55

    Any suggestions on where to start? There's power coming into it, both fuses are good, and if I manually push the contactors, one turns on the fan and the other turns on a pump, though I'm not sure which one. It looks like there's one pump that circulates coolant to the spindle and another might...
  11. U

    Acramatic 2100 work offsets

    I've searched and searched but still confused. I'm running two different parts simultaneously on a Cincinnati Arrow 1500. How do I set the second work offset and invoke it in the program? I selected "active setup #1" on the pendant and located my X0,Y0 on the first part. Now I need to set the...
  12. U

    Stress relieving question. Getting distortion during machining.

    I'm working with some mild steel DOM tube and after milling a groove on the inside it's springing out into an oval shape. I'm looking at maybe stress relieving these. What temperature would that be done at? The inside surface is honed smooth and I'm concerned about scale building up during the...
  13. U

    Acramatic 2100... unable to edit programs

    I'm getting these alarms on a new-to-me Cincinnati Arrow with Acramatic 2100. I can load and run programs fine but if I try to put them into editing, I get these messages about not being able to open them. Any suggestions? It worked fine up until a few days ago.
  14. U

    Worn chuck? Run out issues.

    10" chuck Hardinge Cobra 65. Chuck is the original Hardinge and I'm having run out issues. I cut some soft jaws with a boring ring installed (and then skim cut them again to double check) but I'm still seeing .003"-.010" run out. Every time I reclamp the part it changes. I'm also able to move...
  15. U

    Cincinatti Arrow... table shifted during rigging.

    I had the spindle pressed down against the wood block near the 4th axis chuck. When the machine was delivered the table was slid over. I watched them load and unload the machine and it stayed level. Could it have slid from them driving down the somewhat steep hill nearby? Is there likely some...
  16. U

    3D milling tips?

    I'm getting more into 3D contouring and want to find out what the best practices are. I'm getting ready to do the die in the pictures below. I'm planning to rough it out in .080" deep steps with a 1.25" APKT inserted end mill then finish with a 3/8" inserted ball nose with .008" stepover. My...
  17. U

    G32 threading problems

    Mori SL20 with Fanuc 0T. I've used G32 for threading before and it worked fine. Trying to use Fusion 360 now and having problems. I started with the post it spit out with alternating flanking and the threads were screwed up. So I rewrote the threading portion manually with straight infeed and...
  18. U

    Radius comp error

    A little stumped here. I'm milling an external square and can't get radius comp to work. I've tried both G41 and G42 and getting alarms. If I enter 0 for the comp it runs fine but anything else won't work. Any ideas? Mill is a Hitachi Seiki VK55 with Seicos MIII control. G0 X0 Y-3. G00 G41...
  19. U

    Changing parameters on Seicos III control.... how to?

    I'm trying out a procedure to open up some program memory and one of the steps says "change parameter no. 9012 bit 4, 0 to 1." So I go into System->Parameters->scroll down to 9012 and select the 0 under the bit 4 line. When I try to input a 1, I get a "input impossible here" error. Do I need to...
  20. U

    face mill DOC/speed/feed

    I'm machining a bunch of annealed H13 steel castings and trying to speed up the process. The part is 4.5" wide and I have to face .600" from it. I'm using some ancient 6 1/8" face mill that takes eight 3/4" square inserts. I'm making one pass straight across at each DOC. Right now, doing .090"...

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