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Showing content with the highest reputation since 04/07/2019 in all areas

  1. 10 points
    They basically split up Trim/Break/Extend into separate functions. Where you used to be able to trim entities together, trim to a point, extend entities (positively or negatively) all from one dialogue box, you now need to accept and open up a new dialogue box for each function. I also dislike how they change "Extend" to "Modify Length". You used to be able to enter a negative value to shorten the wireframe, now you must select either Lengthen or Shorten and are only allowed positive values in the box. A very good workflow that used to contain a lot of functionality has, in my opinion, been completely neutered.
  2. 8 points
    Those are WORLDS apart. .002" true position you can hold on a Haas. .0005" you need best of the best, and if you can't afford the machine to do it you can't afford to take the job. As said before, getting the tolerance requirements as loose as possible should be the first priority, since as you're learning, tight tolerances cost money.
  3. 8 points
    I'd create a 2D contour above the geometry...toolpath with a 2D contour using the 6mm Ballmill and then project that 2D contour down onto the surfaces
  4. 8 points
    We've got a very large Okuma 5X trunion style horizontal mill and an Okuma VTM-1200 5 axis vertical lathe I cannot speak too highly of the service we have received from Gosiger or the quality of these machines. The horizontal mill has spent 5 years doing heavy roughing in steel and is still a tack driver. Last year we took on a reflective dish for a satellite antenna. The reflective surface had an insane tolerance. We told them we couldn't hold it and quoted it "best effort". The "best effort" we got from the HBM we roughed it on was not good enough so we took the finish pass on the Okuma 5X mill. The results were so good our customer did not believe our CMM report. They demanded we CMM it again and sent a rep out to witness the inspection.... Okuma's are not cheap, but they are more than worth the price.
  5. 8 points
    You know I was reflecting on the fact that every time I get stuck, you guys are always here to lend a hand and I thought I should just say thank you all. You guys have been an amazing resource and it never ceases to amaze me you willingness to lend a helping hand to those that need it... Good Job!
  6. 8 points
    Gentlemen, I have added everything that I have from Tim to this folder. https://www.dropbox.com/sh/m8v4b2wjmh96jgy/AADOvZmi0WtMcN88_CyN-VTga?dl=0
  7. 8 points
    I Converted all of Tim's publications to PDF when I heard of his passing. The link Below has 5-Axis Machining Demystified, parts 1-4. https://www.dropbox.com/sh/m8v4b2wjmh96jgy/AADOvZmi0WtMcN88_CyN-VTga?dl=0
  8. 7 points
    You did a pretty good job getting to the point you have gotten. Thank you for sharing a file with sweat equity in it. I would use the same process you used on OP7 in the Index Plane to finish roughing out the ID area. Make a Boundary to allow for your tool to start in the empty space. I normally will make it 2X to 3X larger than my tool. One other thing name your operations as your making them. Hard to follow what your doing without clicking each operation to see it. I did an 1800 part and every single operation was labeled. Looks like PHD designed this part with the .125R in one place and then 0.134375 in others. I would still use a 3/8 x .125R to swaff the walls after you get the meat out. You have a .0625R in the top 2 pads and can 3+2 then using your plane or you can 5 Axis them using Swarf. You have about 1/2 hour to one hour of programming left and it is done ready to flip. I would make a set of jaws to ID grab the part then finish the outside with a flat ground bottom endmill. Not a flat endmill, but a Flat Ground Endmill. Most endill have a slight taper in the cneter and will not flat cut correctly and leave scallops on your surface. A good flat ground bottom endmill will make that thing look like new money. You can use 5 axis Parrella with surface and call it a day on the side walls and round outside. Then come back with a nice 1/2 ball endmill to clean up the radius. Could get a Radius mill the 0.2343R, but then have to worry about blending it. Define your holders. Not defining holders is sloppy in my opinion. You also have some crashes your not seeing by not defining you holders. Define your work holding plenty of free models out there from just about anyone. Put some of this to effort and come back trying to do more and we will help you along more. Here is a Video of the 5Axis Finish Video
  9. 7 points
  10. 7 points
    Well I can't pass the Mastercam U stuff so have to agree with everyone here. Take one of your parts and have them program it. Question is what is your process? Does the programmer do it all or only program? Me I have to come up with the order of operations, design the fixture, program the fixture, pick the tools and holders, sometimes model the part, program the part, make the setup sheet, tool list, post the code and verify the code. Other times I have to get the post working, solve the CAV issues and then help fix machine issues. Really comes down to hat your needing then just feel them out. I know a lot of Mastercam programmers who have never cut a chip in their life. They can make Mastercam stand on it's head, but go run that program on the machine and you see where the rubber meets the road. All the best in your search.
  11. 7 points
    Form Tapping isn't going to work very well in that material. The plastic will not 'cold work harden', the way metal will. You'll deform the plastic, and it will spring back, making a threaded hole that is undersized from the print requirements. First, PVC (polyvinyl chloride) and Acetal (POM, or polyoxymethelene), are very different materials. POM machines "on size", very easily. I've cut a lot of Delrin (Acetal or POM) parts, and rarely have problems with driling or tapping this material. If you have the option; use Delrin. It's like the difference between cutting aluminum and bubble gum. Sure, the bubble gum cuts quickly, but try holding a tight dimension! PVC on the other hand, simply sucks to machine. The material "pushes" out of the way, and you'll have difficulty getting the tool to actually cut a chip. Tools will make a big difference here. You'll want plastic specific cutting tools for PVC. I'd consider the Single Flute cutters from Harvey Tool. For tapping, same story. You'll want very sharp rake angles, on the cutting teeth. I've had to order special "oversized taps" before, so that the threaded holes would gauge to size properly. What is your thread callout? 2B or 3B for the Thread Class? Sometimes you can make a 3B Tap work, if you have to hit a 2B Class. But 3B is going to be extremely difficult to Tap, without an oversized tap. For my money, I'd Thread Mill the threads, and be done with it. With Thread Milling, you control the pitch diameter by using cutter compensation. Since you have the ability to adjust the threaded hole diameter with the Thread Mill, it will give you the ability to cut the thread on-size, in a single machine operation. Once you dial-in the first hole, all the subsequent holes will be sized perfectly, without having to fiddle with anything, or run a tap through by hand.
  12. 7 points
    Still day to day usability is clumsy. They obviously care way too much about shiny new whistles and bells than they do about what it's like to use the software. or they would listen to us . The other day I modified a plane and MC threw out 6 view sheets for me. yesterday I changed the dia. of my spot drill, so MC tripled the spindle speed and doubled the feed rate for me! There are so many glitchy ways that the software works that it's impossible to predict what it will do next. Why does the toolpath manager jump around so much? Why does it scroll to a different spot if I even sneeze? I wish they would just work on what they have got and make it run smooth. they need to work on improvements rather that adding more stuff to impress non users into purchasing!
  13. 7 points
    I know there are a lot of guys on this forum who I consider 'gurus' and their knowledge about Mastercam is so far beyond anything I have. But about 4 months ago our company's owner asked us to upgrade our abilities in Mastercam after I convinced him NOT to switch to Tebis software. And so we've been doing a ton of work in the stand-alone tool library, changed our posts, begun to use the simulation software and upgraded our use of the verify software. Along the way we had to figure out a lot of work-arounds and/or just figure out the idiosyncrasies of the Mastercam software. I don't know if anyone else has faced a similar task, but it was daunting to say the least. We got help here, from mastercam.com, from our Mastercam reseller and also from an independent contractor, (shout out to Mark R. Fryman) that we hired for a time. If it wasn't for others helping us, we couldn't have made it, and so I just want to throw out the offer to help anyone else who might have questions about doing similar things. We are a proto-type mold and fixture shop: everything we make is one off, but our owner wanted to automate our machining processes as much as possible by stringing together as many tools and operations as possible so that our operators could hit the button and let multiple tools mill our parts and get it right the first time as we ONLY get one chance to get it right. Maybe no one cares, or maybe others would want to offer their own tips and wisdom to this thread, too. I certainly don't know it all, but it's finally coming together after 4+ months of preparation, and it's kind of a good feeling to see it working and actually giving me more confidence in the programming that I do. Scott
  14. 7 points
    I have done exactly what Thad is saying with the ops libraries. But i got sick of going through the import process and searching for the correct toolpaths i needed to import even though i had them labeled good like Thad's examples. Once you get all the toolpaths for all the different scenarios it can get into the 500 - 1000 toolpaths if not more. So what i did was design and code a window that sits in the levels manager with buttons and drop-down menus to automatically import what i need. I also made it for different materials so i dont have to mess around with changing tools or speeds and feeds. I pick to material i want, pick the operations i need and BOOM its imported at the red arrow and i just pick geometry.....Done! I just click and in seconds what i need is imported. I also use same window for doing other common everyday tasks as you can see in the pictures. It took many hours of work and coding but i'm so glad i did it.
  15. 7 points
    Thank you for keeping me employed I really appreciate your comments. Have a great and wonderful weekend.
  16. 7 points
    Why stop at editing your toolpath defaults? Make an operations library. With toolpath defaults, you can only set the parameters for a single pocketing operation or a single contour operation. Don't you want different defaults if you're using a 3/16 end mill versus a 3/4 end mill in a pocketing toolpath? Take lead in/out, for example. Percentages can be OK for some of these settings but I like to define constant numbers for most of those things. You can do that with an ops library, but you can't with the defaults file. Here's a few shots of my library. I have pocketing, contouring, finishing operations for each tool that I use. I also have groups of ops to perform common tasks like reaming, tapping, c'boring. I have all of my spot drill ops go a little deeper than actually needed so that when the hole is complete, there's already a chamfer on the hole. 95% of my programming is covered in my library so I just import the ops and go.
  17. 7 points
    I've been helped here so many times, the very least I can do it give back when possible.
  18. 7 points
    We have had a Fadal or two for the last 25ish years. We ran into control limitations in the late 90s. The control just wouldnt contour for crap at any good speed. So we used our Fadals for basic tasks (2d, drilling, simple milling..ect). This last year we bought and installed a couple of 527F controls from Calmotion for about 8K ea. I have to say I wish Fadal would have had this control on it back in the 90s. It came stock with 8gigs of memory...not 422K or 16 megs. It handles 3d contouring at a few hundred inches a minute. Our biggest hurdle is now the spindle speed is limited to 10K rpm. But we use that at 2-400ipm contouring with a pretty heavy chip load. Giving a little more life to these dinosaurs is very helpful.
  19. 6 points
    And my reseller told me that I was the only one that uses 2D sweep. Gives good clean code without a lot of retracts and easy to program.
  20. 6 points
    I never have setup a threading tool in Mastercam the way Roger has set it up Sorry Roger. I always program Zero to the edge of the tool. I want my tool to go to .999 up against a 1.000 should then I can program .999 and know if the operator touches of the tool correctly it will never crash. By going off the center of the tool you run the risk of a crash. I do it like Peter is suggesting and never had a problem making a good thread yet.
  21. 6 points
    Yes I know of a concert hall that bought a $500k piano for the Violin player to play. After 1 year it was never played once and the management group was upset and fired the violin player. On the exit interview they asked him why he never played the the Piano that was bought for him. He replied I spent 35 years playing the Violin. No one ever asked me if wanted lessons or if I even wanted to play the Piano they just bought and expected me to be able to play it. They said well your a musician said the person who never played an instrument in their life. He replied back what if someone bought you and INDY car and told you you must beat the best racers on the planet or loose your job? How long do you think it would take you to beat them with no training or help? Anyone can do what I do is my feeling. I am no one special, but I have something 99% of the other people don't have. I have 30+ year of experience in well over 1000 different shops having programmed well over 300 different machines. I wish I could sit down and play the Piano like someone who has played it for 30 years could, but I cannot. Maybe with years of practice and training I could play twinkle twinkle little star. If your owner is not smart enough to understand no one can get to where they need without the proper and correct training it might be time for you to find somewhere that understands training is the most fundamental aspect of the manufacturing process. That said I spent many hours when I was younger on my own time learning and growing my craft. The concert Pianist doesn't sit down not having spent countless hours practicing and honing their abilities. We as machinist and programmers should be doing the same. Honing and perfecting our abilities. The Piano or any instrument for that matter make such amazing sounds when played by the right person, but make terrible sounds when played by the wrong person or a novice. We all need to think of our work as our own Masterpieces of our abilities, talents and God given abilities. Excellent putting something up to get better keep that attitude and you will surpass me in what you can program and do.
  22. 6 points
    Heyo Kolson, I took a quick look for you. Right off the hop a few things jump out at me. 1st is that you're not going to be able to cut this all the way with this tool, as you see it gouges into the back side of the material: 2nd is that you've over-complicated it a bit as you might have guessed Now, the retracts and such are related to your Collision Control settings: Which tell it to trim out collisions.. That leaves you with a big gap to get from where you would have started to have collisions to where you wouldn't, and your linking settings kick in from there.. But you'll eliminate a lot of the problems if you set up the toolpath right, so before we play with linking and collision control, let's recap: Cut Pattern > Curves: There's no need for this. Parallel is designed to take shape/chain/pattern and copy that across all of the surfaces you've selected, which means you're not sure which one it's using to project from with this selection.. Delete all but the last one: Tool Axis Control - There's no need to use lines here. It looks like you just want it to rotate around the Z axis, but 20° off. So instead of lines, set it like this: That says to just stay 20° off the Z. Now, when you regen it it, you will only have one approach and one retract, but of course, it's still gouging on the backside: But now you can figure out which tool you have to cut it with that won't gouge. Another thing you can do is turn on "check surfaces" on the Collision Control page and choose the back of the channel and the top surface, but of course that's not going to cut as deep: Take a look at Op #2. Hope this helps! TEST_CURL_-_ACE.mcam
  23. 6 points
    Colin, Thank you for taking the time to come up with this very elegant solution. I don't know if you have had experienced similar, but the challenge was to use a HMC as a VTL substitute, and incremental moves with a B360. on each line has worked well, so wanted to figure out this little irksome issue. Not being patronizing when I say that having read many of your contributions to this forum, the level of your knowledge and your willingness to assist is exceptional . Thanks again.
  24. 6 points
    I have something that seems to have helped Mastercam be more stable and crash less. Inside task manager there is the ability to set priority of programs. If you go in and set Mastercam to high priority, it seems to be more stable and process things faster (on my computer at least). The problem is that it only lasts until you close Mastercam. I did a Google search and there are add on programs that will keep the priority set to high. The program I downloaded is called Prio. It installs and runs in the background. It starts when windows does and now when I run Mastercam the priority is always set at high. All you have to do is start task manager and high light Mastercam (once it's running) right click- Set it to high and also check save priority. Set it once and it's done.
  25. 6 points

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