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#1
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| Milling flats on the side of round stock I've got a round part that was turned on a lathe and am trying to figure out how to use SprutCAM to generate a toolpath to mill two flats vertically on opposing sides of the part. The best I've come up with is a 2D contouring operation which is attached as a zip of the STC file but it also side mills around the periphery of the part. The jpeg shows the flats to which I'd like to limit the milling operation, but I can't figure out a way to do it. Can anybody suggest a solution? Thanks, Mike |
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#2
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Yes!!!! Learn enough G code so you can write this type of trivial little routine by hand. It is pitiful that you need a computer program to do something so simple.
__________________ An open mind is a virtue...so long as all the common sense has not leaked out. |
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#3
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| Geoff, It would be even simpler to use a manual mill, but I'm trying to learn how to use SprutCAM here, not focus on the quickest solution. Mike |
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#4
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| Like I just did. |
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#5
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| Hi Mike, In V4, 2D Contouring is the way in which I would do this too...... To stop the cutter running around the whole of the shape you should use partial machining. When you select a 2D curve for machining, you can also dynamically drag the tool to where you want to start / finish machining. What you may not realise is that you can drag the 'golf flag' at the centre of the tool to where you want the end of the machining to be. To then extend the toolpath so that it approaches and retracts away from the part, you can use a 'Tangent' Approach & Retraction (Toolpath tab). The file that you had attached was just the G-code file, so I have produced a mock up of your part in a V4 project for you to have a look at (attached). In SprutCAM 2007 we can machine this part very quickly using the new 'Job assignment' option. This allows you to select the faces that you require machining, even vertical ones...which was a problem with V4: |
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#6
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Mike |
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#7
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| Hi Mike, sorry but I don't do manuals The term 'partial machining' is one of mine.I've created a short video to show you how it's done.......a picture paints a thousand words and all that.......enjoy: Dynamic start / finish Dave |
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#8
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| Thanks a million for that video - I modified the operations parameters as suggested and finished the parts tonight with no problems. Mike |
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#9
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| Hi Mike, I make flats on round parts in my Tormach. The part is held vertically in an EagleRock 5C collet fixture. The collet fixture is centered so that X0 &Y0 coincide with the centerline axis of the collet. I don't use SprutCam, but manually wrote G-code to have endmill mill flats on the side of the part. Don Clement Running Springs, California |
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#10
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| Hi Don, I used an Enco 5C fixture, probably similar to the Eagle Rock you used. The feature was simple enough that I could have used MDI with Mach to do the milling, but the primary objective was to learn how to use SprutCAM a bit better. Today I'm milling soft jaws for my vise and the lessons learned with the flats are paying off a little larger dividend. Mike |
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#11
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| Hi Mike, I just installed SprutCam 2007 and am trying to mill an 11.86” diameter curve in a circular part held in a 3” internal expanding 5C collet held in the same EagleRock 5C fixture on my Tormach. The mill is a ½” diameter solid carbide ball end mill. As shown in the following photo there is a problem on the flat area in the center of the part whereas the outer edges are quite smooth. I originally created the G-code using SprutCam 4 and a waterline. I am now redoing this program using SprutCam 2007 and waterline but am still figuring out the new “fixtures” in SprutCam2007 vs “restrictions” in SprutCam 4. I believe if I check scallop height instead of using a fixed distance in the milling strategy that the rough areas in the middle will smooth out. I need to figure out the way “fixture” restrictions works in SprutCam2007 though. Any help with how to use” Fixture” and “restrictions” in Sprut2007 would be appreciated. http://i72.photobucket.com/albums/i1...inDiaCurve.jpg Don Clement Running Springs, California |
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#12
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| Don, Wish I could help but I just got SC 2007 installed myself and am still finishing up my current project in SC 4. Maybe Dave will pop in and educate both of us. BTW, SC 2007 looks pretty appealing from a visual standpoint. Mike |
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