I bought a cheap drag knife some time ago, from a far off land, but I have not yet used it, because: (a) it does need routines for turning corners, and (b) upon inspection, I decided that a critical factor is likely to be the ability of the knife to swivel very freely; and this cheap one didn't. Rather than embark on yet another 'small' project, I put it in the 'later, maybe' drawer.
I machine a fair amount of plastic, but not thin film. For a small quantity, I might try clamping it between thicker sheets and using a very sharp single-flute carbide router cutter (like an AccuPro from MSC Direct). These are just the job for plastics like Acetal/Delrin, although they are relatively expensive. They work marvellously well in aluminium too. Marcus On 25 Jul 2020, at 02:02, andy pugh wrote: > On Sat, 25 Jul 2020 at 01:48, Matthew Herd <[email protected]> wrote: >> >> I did some reading. Here’s a much cheaper one. >> https://www.amazon.com/Carbide-Housing-Silhouette-Machines-Portrait/dp/B07LBN6Y89 > > Yes, that is also in pen-plotter format. > > -- > atp > "A motorcycle is a bicycle with a pandemonium attachment and is > designed for the especial use of mechanical geniuses, daredevils and > lunatics." > — George Fitch, Atlanta Constitution Newspaper, 1912 > > > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
