I Tim Frederick for MVP machine have an interesting project that we'd like to share with you this is a piece of basically Plexiglas it's acrylic clear plastic we want to reuse it because it's kind of pricey this is one inch thick it was originally used for a display for a lot of the products we used to make we no longer have a need for it and we want to cut out a section approximately this big seven inches across it's going to be approximately eight inches wide and we want to reuse it and remove the engraving engravings approximately thirty thousands of an inch deep and we want to make it clear that after that which is kind of a challenge we've never tried this before and we want to see if we can make it work with a minimum of polishing afterwards so what we decided to use was a suburban tool fly cutter you may have seen some of our other videos that feature this fly cutter we use it quite extensively in steel and aluminum and it provides a beautiful finish we're gonna try it on this plastic and we feel it's gonna work pretty well this is the safety sheet be sure to read this because it can be quite dangerous if when properly used and then there's some suggested feeds and speeds for different materials none for plastic so we're going to stablish their own basically how the cutter works here's the federal body 3.5 inch diameter body this is a cat 40 shell mill Arbor it's a one-inch arbor and that's the diameter of this hub and these keys are 3/8 inch that's a pretty standard 1 inch shell Mel Arbor they all come with the same features it's a f20 threaded hole that goes through there and the cutter body fits right on there locks into the keys and then this half 20-second head cap screw bolts it down to the arbor probably that out for now and we're gonna be using for our project the set that we have here comes with three bars it's a five inch bar 7.5 inch bar and 11 inch bar we're gonna be using the middle bar which is a seven and a half inch bar if you want to keep the size mich appropriately to the diameter that you're trying to cut and this 7 1/2 inch bar with it so that's set to the smallest diameter it's adjustable that's set to the smallest diameter it's approximately seven point seven five inches and then its largest down there is about ten and a half inches then when you get it set to where you want it we'll probably use it somewhere in the middle here lock down the three set screws make sure they're good and snug and you're ready to go these cutters come from suburban tool with a tin coated insert you can specify whatever insert you'd like we're not going to use the tin coated insert that's primarily for steel we're going to be using a uncoated insert it's car by two uncoated the reason being is that the tin coating provides like a slight radius and we want to sharpen of an edge as possible on this insert there's another insert available which is ceramic which works quite well for high-speed cutting of Steel or hard harder materials but I don't think that'll look too good for our plastic project here so we're gonna get this basically cut to size set up on our Fadel and we'll show you a fly cut and see how clear we can make this thing just with the fly cutter and we know there's going to be some additional polishing required the roping to keep the polishing work to a minimum on the buffing wheel maybe three to five minutes hopefully less so we're gonna get it set up the on the machine in the next segment we'll show you us taking the cut out okay where you have the piece set up in the machine we've cut both ends radius the corners and we're ready to fly up the surface we're taking 35 inch 0.035 depth of cut and we're going to be running the cutter at 1250 rpms about four and a half inches a minute and there we have it mm graving is gone pretty good it's finished we're gonna mmm take that and stuff it up a little bit with some red scotch-brite mm vibrating sander and that should be good enough to send it over to the polisher okay you're real our piece hmm it's basically as this AZ finishing not dead at all you can't see any machining lines in it we're gonna polish it this buffing wheel hmm first clip buffing compound with károly television kind of black to make white diamond I'm popping compound and then we want to basically go from a few different directions we have a volunteer right now one more time or compound on the real the idea is not folded on here too long aside from the wax that's on here from the buffing compound essentially clear again what we're gonna do is clean that up with some alcohol and I'll show you what it looks like when it's cleaned up all right now we just have regular rubbing alcohol we're gonna put on a nice clean paper towel don't be afraid to soak it just taking off the wax and fingerprints on both sides we didn't polish the edges we're gonna have to do that what we wanted to show was the face it looks pretty good at a dry paper towel here when we basically turned it clear again so there you have it we've taken 35 thousandths off that face gotten rid of the engraving and now it's ready to be reintroduce thank you for watching