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But I have cut 3 sheets of 1/4" MDF sheets stacked with a 20 HP vac cutting 1000's of 9" x 12" blanks on my Thermwood. I still use mine occasionally because I do not have a roller hold system so it won't cut 6 sheets of 3mm at a time. If you were just cutting strips why not use a table saw or did you sell it to make room for your CNC thinking you'd never use it again. We manually adjusted the z-axis each pass and made it through the material without any further mishaps.
#Vortex cnc dovetail bit manual#
I was cutting the material into strips by using the manual panel input in CN and it tried to cut too deep too fast. It did ok on the outer edge, but when it came down the middle, it was too much. When we shattered the bit, I think we were running at 18,000 rpm's and 750 ipm. Detailed Image of Vortex 4 piece MDF Door Set To Order CNC Dovetail router bits call. We found that cutting around 300 to 500 ipm was best for this material. From design and pricing, to parts lists and CNC manufacturing. This being the first time we had cut 1" thick material, we were not sure how deep to cut and found out that anything more than maybe a 1/4" to 3/8" was too much. You are correct in your findings, I had the feed rate and rpm's up too high. You can also call Thermwood and ask what they would recommend.Īlso are you using Climb or Conventional? You can do this using a variety of bits also. Keep good notes and you will see what works best for you. On your controller use the feedrate over ride to start at say 60% feedrate and move it up in 10-20% intervals at each of the magic marker lines. Another way is to make a long line down the side of a sheet and program it for say 700IPM but make several of them with different RPM's. Program each of them in 25-50 IPM intervals and adjust rpm for your best chip load. Get a scrap piece and draw a bunch of long skinny rectangles, ovals or even just a straight line.
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That sounds like you are moving too slow or your RPM's are up to high for your feedrate. I have never had a remelting issue with HDPE or UHMW. Now remember that the up spiral will tend to lift your material, so I hope you have good vac on this slipppuurrryyy material. I would also talk to Greg at Courmatt, Someone at Onsrud cutter, and any other bit vendor you may use.
#Vortex cnc dovetail bit skin#
You may want to use an upshear on your 1st pass and then use a down shear for you onion skin pass. Now we do not go all the way through but cut 3/8" in a 1/2" board at 700ipm+- with out a problem other than the occasional birds nest that will free it self typically. Want to offer high-end features to your Clients Dovetails are an excellent capability to add to your repertoire. We use a 1/2 Viper with mortise tip to cut our HDPE all the time.