I am not a CNC machinist but a software developer. From my perspective it would make more sense to add a property to a tool instead, to which direction should it retract. The G code should only specify to do retraction, this way it would be more portable, when you ever have to replace the tool with a differently oriented one.
Gábor Móczik hmmmm. I like it. On our lathes we set a Tip Direction so the control knows which way to compensate toolpaths, but if we used a Tip Direction column for each tool, mill/lathe, it could automatically move in the right direction. Clever. - Mark
I was watching this at a robotics competition last weekend. Just after I finished Mark TerryBerry himself walked past my pit and I just about burst into laughter, that "ok boomer" was fantastic.
Thanks Mark I'm going to Calibrate our probe and loaded it up with the Haas logo facing toward the operator. That's a really good idea since we keep the probe loaded in to the machine. I definitely learned something good today. Thank you again.
I always orient my tools to the ball notch in the holder facing me, including the probe! If I did that with all my tools except the probe someone would be bound to put the probe in facing the wrong way at some point, we load and unload tools much more often than the probe. Bad advice with the HAAS logo thing. Plus using the notch make's it easier to change the battery without removal on smaller machines. My probe is always in the last pocket of the machine anyway so very rarely removed. One point about loading the probe you probably should touch on is setting its loading speed to 50% in tool settings to prevent jarring any physical calibration settings on the probe itself.
Reminds me of the following conversation at work. Operator: What does 'Q' does? Boss: Dunno, Just stick it to something big 50mm Operator: Ok Machine: BOOM!
First thing you do when loading a boring bar is run an M19 spindle orient to see which way it's facing then in your boring program just set your retraction direction opposite of that.
Q acts as x J acts as yis the value for the stepover he wants his boring bar to step over at the end of the tool path. It steps over to keep the one cutting edge from scraping back up the wall. Haas has several canned cycles that others don't have like the g83ijk. Also. You will crash eventually. Run your programs in the air. Finger on the stop button. Rapid low or even off while feeding. Single block. All of these are things machinists who have been there before, and crashed those machines, do every time they run a new program or have something that isn't 100% straightened out. Take your time. And theres lots of good advice in these videos. Terry is pretty good
it's actually i,j,k = x,y,z (because those variables were already used for other things. Comes up in vector math a lot) Q appears to be a stand-in variable for that program specifically (which is why it takes priority over the other values)
May I suggest a Video about the G10 code and it's advantages I know not a lot people use it but I find it very useful for setting diameter offsets within the program to foolproof for the less experienced operators. Thanks!
G10 is great until you use it to define the position of a trunnion on the table, remove and reinstall the trunnion, then forget to update the G10 line.
Here are some videos that cover drilling canned cycles. You can do just about every drilling operation using just a G83. Pecking ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-AM6nVgKjBQo.html Chip removal: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-d1ATntHemHk.html Clearance: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-YbbZJ7H0NUw.html Tap: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-TIZL4LeTms8.html Dwelling: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-Euh_xrcJ5SI.html If you're looking for something specific, let us know and we'll put it on the list. - Mark
wouldn't it be easier if you had two different sized lugs in the spindle or even just a pin in the spindle with the toolholder only having one cutout for it, so one can only put it in the right way, otherwise the pullstud won't be gripped and the tool will slip back into his/her hand? it's not really hard to do, so I'm wondering why you don't do that in the US? Something along the Lines of DIN 69871, if I remember correctly.
sound easy, but what about balance? I blame my OCD that I put tools and especially our probe in the same way, despite never actually using this kind of boring cycle.
@@rokbottom8121 Balance is achieved with the spindle being balanced for those two slightely different sized blocks. the toolholder themselves are also balanced from the manufacturer, G6.3 I think is the standard for the one I get mine from (here's their website in case you're interested: kemmler-tools.com/ ), so good to 15000rpm out of the box, but for a not much extra they'll go to G2.5 which would allow much higher rpm. Granted, I doubt it'll be good for above 25000rpm or so, but at those spindle speeds one should considder an hsk spindle, not a tapered one anyways.
this is how the okuma mills are at the shop i work at, but not the haas mills. never understood why the haas machines werent built that way, maybe just a convenience thing. could be a good option when spec'ing the machines, maybe?
Since you are using SK-40 tapers on your machine the orientation of tools should not be an issue because the two notches on the toolholders are different depth according to standards. By using different positioned keystones on the spindel you won't be able to put the toolholder in the wrong way again! To the operator (of different machines) you can often correct this production fault by loosening one keystone and turning it 180° since they are often made asymetric so that you can choose to force toolorientation or not.
That magnetic ring gage for Calibration of the probe is slick. Went to the website on the engraving and they don't list it any where. Where can I pick one up?
Hahhaa. It looks way off. I think what we are seeing isn't the notch for the drive dogs, its the notch that we will see on DIN 69871 Metric toolholders. They are built to a different spec than Inch Cat-40 holders. That extra notch is to accommodate different styles of machines that require it for their tool changers. Haas Mills can run tools with or without those metric flange notches.
I was wondering that too. European "SK-(size)" holders cannot be put in the wrong way. American "(size)-taper" holders seem to be specified differently (or it's a Haas-specific thing, which I doubt).
Responsible of the programmer to insert a warning instruction(#3006) before the boring cycle. Always make the program safe for every users not only for set up guy.
My friend John Nelson made a video on calibrating the probe and its worth checking out m.ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-VUY2c39jykM.html. If the ruby tip on the spindle probe is dialed in dead-nuts to zero, the orientation of the spindle isn’t that big of a deal with the probe, but I still load it the same way each time, because sometimes a tenth of a thou (a few micron) matters. - Mark
Bill Weber this is a 1.5” Magnetic Ring Gage from Productivity Quality, Inc, a division of PQI. The magnetic ring works fantastic if you are running on horizontal mills, but it’s also a timesaver on verticals. It is pricey, but I love mine. - Mark
Hi, great video! Just wondering if you hypothetically had a tool that is at 45° (or any angle I suppose), could you add both an I and a J value to the line to make it retract at an angle? Or will the control only allow you to specify one or the other? Thanks and keep up the great work!
Daniel Smith I just tried this out on my simulator, and yes, it looks like the control allows the use of a combine IJ shift just fine. This would allow you to retract at the 45 degrees you mentioned. - Mark
doesnt sk40 have a notch in the toolholder and two different sized drivekeys to prevent loading the tool the wrong way? At least our machines have this
I'm looking at the y+ and y- directions at the 7:00 mark. We have two VF4 mills and our y- movement is away from the operator. Are you positive this video is correct?
The x-y plane is in the perspective of the spindle since the spindle itself doesn't actually move in this plane. Negative movements will have the table traverse in the positive direction of each axis. What you just described is exactly what was portrayed in this video.
Since a CNC can have many configurations, it is best to ALWAYS think of driving the tool, NOT moving the machine. Same CNC program can run on fixed table moving X,Y and Z gantry or an x table with head moving in Y and Z, or the common "C Frame" where table moves in X and Y and head only moves in Z. Drive the cutter / tool, and none of this matters !
Beckoning Jinx it can be dangerous. If you push too hard, the control will try and and reposition, and it could forcefully spin the chuck around. Ouch. Best to hold the jaw with a large crescent wrench, or do what I do which is just to set the allen wrench as perpendicular to the spindle centerline as possible and give the wrench 3-4 solid smacks with a dead blow hammer. It’s a feel-thing but after years of doing it (and comparing to torque wrench values), I am comfortable doing it that way. - Mark
Because you may have more than one boring bar in a program, and one orients tip left and another orients tip forward, so leave setting 27 at standard and adjust the program for each tool. No surprises.
ooof sneak peak behind scenes for few seconds. they say picture says more than 1000 words. if you have video at 30 fps and 10 minutes then you got a lot of pictures.
I know, right? I've wondered the same thing on occasion, then done some quick mental math. The vast majority of tools that get loaded into Haas mills don't need any special orientation (drills, end mills, face mills, taps, reams, chamfer tools..), so overall it saves quite a lot of time for Haas operators to not have to think about which way most tools go into the spindle. It's just simpler and faster allowing the tools to be loaded either way. Of course, we have to look out for the exceptions, like boring bars! Thanks for the comment.
Too bad them Haas spindles are so far out of concentric. Aw hell, we can work with it. No, I couldn't help the kick in the ribs. Thanks Mark, another great tip, even though I always clock my tools. Mark
I was actually going to watch this until he said "ok boomer".... That is the least funny statement I've heard all year. No, I'm not a boomer. Shit is corny.