Newbie PRO4896 Cutting Melamine - Page 2


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Thread: PRO4896 Cutting Melamine

  1. #13
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    Default Re: PRO4896 Cutting Melamine

    Gerry - Huh so my first guess was pretty good then.

    WM George - I have the vortex app as well but I do not see anywhere to select material and when I put 14000 rpm & 2 flutes it gives me a feed rate of 0.00 ipm



  2. #14
    Community Moderator ger21's Avatar
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    Default Re: PRO4896 Cutting Melamine

    Never used the Vortex app, but their chipload charts (and many other's charts) are geared towards maximizing tool life, and these values may be impossible to attain on hobby grade machines.

    Gerry

    UCCNC 2017 Screenset
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    (Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)


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    Default Re: PRO4896 Cutting Melamine

    Quote Originally Posted by Gary-Wiant View Post
    Gerry - Huh so my first guess was pretty good then.

    WM George - I have the vortex app as well but I do not see anywhere to select material and when I put 14000 rpm & 2 flutes it gives me a feed rate of 0.00 ipm
    Select Tool Selection Guide and then Material to get chip load recommendation. Gerry, this is all about selecting feeds and speeds for a beginning CNC user, starting points the user (as me) will need to adjust as needed. If I had 20 years in CNC like you I would not need.

    Retired Master Electrician, HVAC/R Commercial union shop and Lots of hobbies. FLA Saturn 2 4x4 CNC Router


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    Default Re: PRO4896 Cutting Melamine

    Quote Originally Posted by beltramidave View Post
    GWizard is a very powerful tool and you can modify for your machine. They are having a 20% off sale on all their software now.
    https://www.cnccookbook.com/cnc-soft...gn=offerbutton

    Here is a screenshot for melamine with a standard .25 2flute EM. There are lots of variable to make changes to the end values, so don't take this for gospel. There is a slider bar that will adjust your F&S for aggressive or finish. You also need to set depth of cut (per pass) and whether you are cutting a slot or using a stepover. A little intimidating at first, but you will get the hang of it and Bob is very good at getting back to you if you have a question.
    I've been eyeing his products for a while, you find it to work well for you?



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    Default Re: PRO4896 Cutting Melamine

    Quote Originally Posted by pugsly View Post
    I've been eyeing his products for a while, you find it to work well for you?
    You can download a Trial and use for 30 Days at no cost. But it really seems to me to be overpriced, lots of nice graphics you don't need. You just can't buy you rent the use of it. The Vortex app seems to be a nice way to go. Unfortunately I can't afford to pay a $100 for a router bit to support them.

    But as Gerry says, after a time we will learn. Info from another website is you want chips not powder, If the chip load is correct with your feed rate and speed your chips should be warm or cool not hot or burned.

    Retired Master Electrician, HVAC/R Commercial union shop and Lots of hobbies. FLA Saturn 2 4x4 CNC Router


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    Default Re: PRO4896 Cutting Melamine

    I’m not far from a newby myself, but I have good luck with melamine using a 1/4 2 flute solid carbide downcut at 12,000 120ipm .125 depth of cut. (I have also recent used .25 depth of cut with good results-just have only done this for one sheet)
    ymmv
    Cheers Sean



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    Default Re: PRO4896 Cutting Melamine

    Use caution with melamine and wear a respirator and use dust collection. Melamine ingestion is linked to bladder cancer and kidney problems.



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    Quote Originally Posted by Tigerflyer View Post
    Use caution with melamine and wear a respirator and use dust collection. Melamine ingestion is linked to bladder cancer and kidney problems.
    Thanks, I was using a 2hp grizzly dust collector with my current setup which did ok but still got dust. I'm waiting for my new cncpro4896 but I did upgrade my dust collector waiting to try it out.

    Attached Thumbnails Attached Thumbnails PRO4896 Cutting Melamine-photo-editing_cloud20190106-jpg  


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    Default Re: PRO4896 Cutting Melamine

    Sean,
    how many sheets you getting from a bit before it starts chipping the sides? Im running 3 passes at 100ipm with my current machine which is a hobby machine and belt driven and getting two sheets before it chips, ive tried speeding the ipm up on my current machine but then i dont get a smooth edge which is the ridgity issue with this machine, i received a few emails on another site they are running 400ipm at 18k with the cnrp4896 cutting melamine in two passes. Im curious as to what the machine is capable of doing with the max tool life.



  10. #22
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    Default Re: PRO4896 Cutting Melamine

    Make sure you are conventional cutting, and not climb cutting.
    Climb cutting will always chip melamine.

    Tool life is greatly influenced by chip load. As an example, on an industrial machine, I can cut at least 30% more sheets at 800ipm then I can at 400ipm.

    Gerry

    UCCNC 2017 Screenset
    http://www.thecncwoodworker.com/2017.html

    Mach3 2010 Screenset
    http://www.thecncwoodworker.com/2010.html

    JointCAM - CNC Dovetails & Box Joints
    http://www.g-forcecnc.com/jointcam.html

    (Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)


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    Quote Originally Posted by ger21 View Post
    Make sure you are conventional cutting, and not climb cutting.
    Climb cutting will always chip melamine.

    Tool life is greatly influenced by chip load. As an example, on an industrial machine, I can cut at least 30% more sheets at 800ipm then I can at 400ipm.
    im hoping to get a good setup for the crp pro4896 so when mine arrives in 4 weeks i can get running right away and not having to try and figure the best feed and speed for cutting the melamine. Not sure what this machine capable of doing, i always coventional cut.



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    Default Re: PRO4896 Cutting Melamine

    Wisker, I haven’t noticed to tell the truth. Seldom do I cut more than one sheet of melamine. I’m usually cutting refinished birch ply for cabinet boxes. Very little demand for melamine in my shop. I get the cutters from Yonico on eBay. I just change them when the tips feel a bit rounded. My guess would be about two kitchens worth of boxes and drawers to each cutter. They are 14.50 to 14.95 depending on how many you buy at once. I’ve dealt with this store for years and am very happy with the cutters and router bits.
    Cheers
    Sean



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