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Type: Posts; User: tenaja

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  1. There are two reasons aluminum molds are used...

    There are two reasons aluminum molds are used only for low volume... Primarily, naivety, and secondly, ignorance.

    mold shops are told (typically by lack of instruction) that it's ok to abuse...
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    Topic deleted to move.
  3. Re: ALIBRE / GEOMAGIC What are your thoughts about Support and Maintenance

    According to the Geomagic web site (linked above), there have not been any releases.

    Be cautious when reading articles, such as Andrew's 3dPrint link. That article refers to Geomagic Design X, NOT...
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    Re: Bad surface finish on really thick part

    A small gate can cause all kinds of surface finish issues. The Troubleshooter on PlasticsToday is always harping about gate size. I think half of his articles talk about the original gate being too...
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    Re: Bad surface finish on really thick part

    Are the white streaks splay (usually from moisture or burned material), blush (material dragging), or unmixed color?

    I'm leaning towards too small of a gate. What's the diameter? At 8mm thick, it...
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    Re: Bad surface finish on really thick part

    Gate looks awful small for .3" thick part. How fast does it fill?
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    Re: Help a n00b - polishing aluminium moulds?

    In your blasting cabinet, you want glass bead. FYI, just in case you bought one at one of the chinese importers, such as harbor fright, make sure you get actual bead. I bought some there about ten...
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    Re: Shrink factor for really thick piece?

    The "C" in PVC is chloride. I know if you burn it in a laser, it's dangerous...
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    Re: CNC Mill for small run injection molds

    So, with a hobby machine at 4,000 rpm (some can't even get that), you are at over 40 hours. Still very possible, but I would make sure to have a reliable UPS to protect against power glitches.

    ...
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    Re: CNC Mill for small run injection molds

    Actually, the tool deflection at the top and bottom of a slot will be the same (with the same depth of cut), unless your coolant is deflecting the tool. A molding slot will require draft, and that...
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    Re: CNC Mill for small run injection molds

    If the taig mill he is referring to is cast iron, then I'll take back what I said about Sherline being more. I thought the taig was the other aluminum machine that was even smaller.

    There is more...
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    Re: CNC Mill for small run injection molds

    Taig perfect? No. Useable? Yes.

    I've used a Sherline, and it was useable, and it's more machine than the Taig. The smile on my face when I went to a larger machine was priceless, because the...
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    Re: CNC Mill for small run injection molds

    For small runs, you can use anything...6061 is the cheapest, and will be fine for test runs or a few thousand parts. But it's gummy, so clearing the chips is critical. 7075 is harder (machines...
  14. Re: ALIBRE / GEOMAGIC What are your thoughts about Support and Maintenance

    My Help-> About says this:
    "Geomagic Design Version:[ 2015.1.1 ]"

    Check for updates, and you get "Your software is up to date."
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    Re: FlashCut CNC questions.

    I have not read all of the long posts, but here are my observations...

    complaints...




    Good...
  16. Re: ALIBRE / GEOMAGIC What are your thoughts about Support and Maintenance

    Geomagic uses a third party rendering engine, which is notorious for a couple bugs that have been in place for over a decade. I found this out by googling the error, and saw it pop up with a handful...
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    Re: Wiring help needed for BOY 15 molding machine

    Did you get it running?
  18. Help with Boy 15s injection settings for molding machine?

    I have a Boy15s that I'm trying to set up for the first time. I've run three different plunger machines, so I certainly know the basics, but I've never run a screw. I am having trouble figuring out...
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    Re: Deep .041" slot--use .040" tool, or .031?

    FYI, I tried both the 1/32" tapered and the .040" ball, and as you would expect, the tapered mill had nicer looking sides, but the ball had nicer edge chamfers and bottom. Even the scallops left on...
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    Re: Deep .041" slot--use .040" tool, or .031?

    Thanks for that tip, that was one of my concerns. I guess I will give the 1/32" a shot.
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    Deep .041" slot--use .040" tool, or .031?

    I need to cut a .25" deep slot that is tapered down (1* per side) to .041" wide at the bottom.

    Should I use a .040" mill with a tiny left for the finish pass, or a .031" using HSM toolpaths? My...
  22. We had an issue when using arcs for curves...

    We had an issue when using arcs for curves instead of line segments. The g02 in the code would have higher resolution than the Fanuc could calculate, so instead of an arc with the center 20" away (as...
  23. Robert, do you make molds yourself? If not, who...

    Robert, do you make molds yourself? If not, who do you recommend we use?
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    See the link in my first reply

    See the link in my first reply
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    Mike, both Yahoo groups have all of the manuals,...

    Mike, both Yahoo groups have all of the manuals, schematics and just about anything you need for a stock machine.

    Ideal height is up to you. You don't want to be hunching or stretching for most of...
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    see here:...

    see here:
    http://finance.groups.yahoo.com/group/Emco_cnc_users/message/1995

    > In hand mode:
    > press&hold FWD key then one of the digit keys.
    > This is the number the turret will advance.

    >...
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    I went there. They don't have a drawing for the...

    I went there. They don't have a drawing for the standard turret, but they have one for an 8-station, which will work after replacing a shaft.

    BTW, can anybody tell me how to index the turret? My...
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    Emco compact 5 cnc turret & chuck

    I've got a little cnc lathe with a tool changer, but it is missing the turret plate and the chuck...

    Where can I get a bolt-on chuck?
    Does anybody know where I can get a turret plate?

    If not,...
  29. Poll: I won't, and never will. Employees will...

    I won't, and never will. Employees will appreciate a bonus for about two or three weeks. If you don't give one, or if you give a smaller one the next year, they will be upset with you for most of the...
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    That was my next step, but I didn't need it. My...

    That was my next step, but I didn't need it. My old machine does that, but I was rebuilding the bushing when I started the job. (No, not time consuming, except for waiting for parts.)
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