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  1. #11
    Quote Originally Posted by John S View Post
    I used to do this on a large CNC mill than has speed and feed limitations and got good surface finish. Personally I have found that the slower you cut plastic the better the finish because at high speed it just wants to melt.
    Ye John funny temperamental stuff plastics as I know well you know and each has its own unique likes/dislikes and ways of machining.
    I've machined one manufacturers’ HDPE that would only give nice finish if cut at high feeds but when tried same setup on another manufactures HDPE at same feeds/speeds it goes into melt down or produces long curly wurly chips which strangle everything. . . . Don't figure.?? Not done much with Acrylic but from what I know and have read it too prefers high feeds.!(often the cure as not been feeds & speeds but blown air.?) . . . .Thou to be honest what concerns me is that even the melt downs have needed to be cut around this machines Max.!

    My personal view on this machine is that it will be ok initially but fail quickly if pushed too hard.!!. . . It's cheap price dictates cheap components have to be used.
    It's compromised in several key area's like unsupported rails and acme screws, probably both very cheap quality. The electrics are basic and again questionable regards quality and I've seen several mentions of issue's with them in various places.

    I would say for a first time machine then Ok Maybe because it's cheap-ish.? . . But for special project and where it would need to shine in both quality and performance not mention longevity then I'm sorry but I'd be giving it a wide berth.!!

    Camhgu I can appreciate your urgency and need for it now, but you have to ask your self can you afford for it not to perform as you might like or hoped it would.? Or the down time if unreliable.?
    Buying ready made plug n play packages can be a good quick start-up if they are good quality but equally can be a right expensive time eating night mare if cheap and nasty.!!!. . . . The saying " You get what you pay for" apply's at this level I believe.

    That said I wish you good luck.
    Last edited by JAZZCNC; 29-01-2012 at 07:40 PM.

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