Face Milling a Slant
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    Default Face Milling a Slant

    Good morning everyone.
    As you can by my past post, I am somewhat new to CAM. I am trying to figure out the best way to face mill a slant. The material is aluminum. I am using a HAAS five axis machining center and I'm progrsmming using InventorHSM with HAAS automation post processing. Thank you in advance for any info on this.


    Sent from my iPhone using Tapatalk Pro

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    Tilt to the plane the slant is on and facemill it?
    I assume HSM Inventor has that capability.

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    Quote Originally Posted by Mtndew View Post
    Tilt to the plane the slant is on and facemill it?
    I assume HSM Inventor has that capability.
    When you at "tilt to the plane" do you mean rotate the part to where that slant is level? I am not sure I understand.

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    Tilt table is one method
    HAAS VF-5 4 Axis CNC Swarph Milling with a 5th Axis Trunnion Table - YouTube

    Simplify 3+2 and 5-Axis Machining with DWO/TCPC – Haas Automation Tip of the Day - YouTube

    My experience is in CNC grinding not milling .. If unsure of direction then jog a little to see the right way .. take care that tool change will not crash with things tilted.

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    Quote Originally Posted by cmmpro1 View Post
    When you at "tilt to the plane" do you mean rotate the part to where that slant is level? I am not sure I understand.
    How much experience do you have running the 5 axis mill? It sounds like you need some training, the answer I gave you is very basic terminology.

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    Quote Originally Posted by Mtndew View Post
    How much experience do you have running the 5 axis mill? It sounds like you need some training, the answer I gave you is very basic terminology.
    Very little!!! I'm a cmm programmer. I got moved from quality because I have machining experience. I'm sorry for asking basic questions but I'm trying to learn.

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    Sounds like you need to be very careful. Do a little studying and not break the machine.
    Basic questions are fine. I would have to do the same, and would not touch that machine if not very sure.

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    Quote Originally Posted by michiganbuck View Post
    Sounds like you need to be very careful. Do a little studying and not break the machine.
    Basic questions are fine. I would have to do the same, and would not touch that machine if not very sure.
    Thank you! Lol. I am standing here looking at this like a deer caught in headlights!!!

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    Quote Originally Posted by cmmpro1 View Post
    Very little!!! I'm a cmm programmer. I got moved from quality because I have machining experience. I'm sorry for asking basic questions but I'm trying to learn.
    In that case, the first thing I would do is watch a shit ton of YouTube videos to see the ins and outs of how a 5 axis machine works and I'm sure there are videos on HSM Inventor as well. Granted some videos are cutting very complex parts but you might pick up on something.

    When I say tilt the plane that the slant is on, your programming software should have the option to create a new plane, then you orientate that plane so that the slant is facing up. Create a facing toolpath and you are off and running.
    Setting up the machine is a whole different animal, are you responsible for that too? Or do you have a setup guy?

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    Quote Originally Posted by Mtndew View Post
    In that case, the first thing I would do is watch a shit ton of YouTube videos to see the ins and outs of how a 5 axis machine works and I'm sure there are videos on HSM Inventor as well. Granted some videos are cutting very complex parts but you might pick up on something.

    When I say tilt the plane that the slant is on, your programming software should have the option to create a new plane, then you orientate that plane so that the slant is facing up. Create a facing toolpath and you are off and running.
    Setting up the machine is a whole different animal, are you responsible for that too? Or do you have a setup guy?
    I have a guy that does all the setups. All I have to do is write the programs and pull the stock and tools. Sometimes, on the other machines, I make some edits in the program but I normally let the operator do that unless he or she isn't sure. I still have to write cmm programs for our one offs and FAIs.

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    Use Tool Orientation on the Geometry tab to orient the Z-axis in line with the tool/spindle.

    Will see if I can find a video on that when I have time.

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    Quote Originally Posted by Atomkinder View Post
    Use Tool Orientation on the Geometry tab to orient the Z-axis in line with the tool/spindle.

    Will see if I can find a video on that when I have time.
    Thanks AtomKinder!!

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    Also, in doing this, I could either use swarf or multi-axis contour, correct?

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    Quote Originally Posted by cmmpro1 View Post
    Also, in doing this, I could either use swarf or multi-axis contour, correct?
    Without seeing the part geometry I'm not sure. It's likely possible, but if you want to use a Face toolpath, Orientation is your best and easiest bet. Multi-axis Contour is a weird one to get right on some things as it is more like a Trace toolpath, so if you have the clearance, Swarf is better.

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    So many question marks here...
    Do you have other programmers at your site you can ask a few questions to show you some things? Seems like you are getting into Training 101 so I'm curious if you can leverage your company's knowledge and experience rather than reinventing the wheel; just to get you going of course and then proceed from there.

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    Quote Originally Posted by Qwan View Post
    So many question marks here...
    Do you have other programmers at your site you can ask a few questions to show you some things? Seems like you are getting into Training 101 so I'm curious if you can leverage your company's knowledge and experience rather than reinventing the wheel; just to get you going of course and then proceed from there.
    I wish I could ask him but he's not approachable. That's why I come here or figure it out for myself. The company isn't willing to provide training. They say its not in the budget so I'm basically on my own with this. I knw that its hard to get info out of some machinists so I will keep my questions to a minimum.

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    Quote Originally Posted by cmmpro1 View Post
    I wish I could ask him but he's not approachable. That's why I come here or figure it out for myself. The company isn't willing to provide training. They say its not in the budget so I'm basically on my own with this. I knw that its hard to get info out of some machinists so I will keep my questions to a minimum.
    I would suggest heading over here: HSM - Autodesk Community

    That's the official support forums for HSM, and you can attach files, and there are usually several members paying attention. It's a good community.

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    i don't have 5-axis, only 3-axis, so

    1) if it's a block with parallel sides I might put it into a vice and use an angle block or sine bar to indicate it to the correct angle. If I had to do a lot I might cut a dedicated angle block that sites in the vice.
    2) put a vice on a sine plate and set it to the correct angle. I have various sine plates for vices/large parts.

    You know if you crash the 5-axis who's going to get the blame? Be careful!

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    Quote Originally Posted by triumph406 View Post
    i don't have 5-axis, only 3-axis, so

    1) if it's a block with parallel sides I might put it into a vice and use an angle block or sine bar to indicate it to the correct angle. If I had to do a lot I might cut a dedicated angle block that sites in the vice.
    2) put a vice on a sine plate and set it to the correct angle. I have various sine plates for vices/large parts.

    You know if you crash the 5-axis who's going to get the blame? Be careful!
    Thank you!!! That's what I ended up doing, I did it on the three axis and set up the sine plate. He originally wanted me to put it in the 5 axis but I didn't feel comfortable with doing that. I saw one guy crash one........ Hadn't seen him since.

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    Quote Originally Posted by cmmpro1 View Post
    Thank you!!! That's what I ended up doing, I did it on the three axis and set up the sine plate. He originally wanted me to put it in the 5 axis but I didn't feel comfortable with doing that. I saw one guy crash one........ Hadn't seen him since.
    Cool! Glad it worked out!

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