Tom Szelag
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Everything posted by Tom Szelag
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Yea you have to save em as .hnc on the floppy or it wont read it.
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quote: I have taken carbide endmill and run them for 75 hours straight on 316 SS no problem why because I was at the perfect speed and feed.Care to enlighten us on those perfect feeds and speeds?
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quote: I would like to hold the part at 90 degrees offset in the Y direction-cut along the X direction-rotate thru A while shifting off center in Y, then back down the part in the X direction to finish.I'm having a hard time visualizing this. Could you run it by me again?
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Pretty cool! Though for what I do I'll prob stick to the plain vanilla ME Consultant.
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If you're not in True Solid mode, that may be the problem.
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If you have a good working version of that post why not just send it to him, overwrite the crappy one, and everyone is happy.
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Diamond in Ultem? Haven't run 2310 but Ultem 1000 we've run fine with M2, M42, and C2.
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Anyone have experience with Harvey's plastic cutting tools?
Tom Szelag replied to Tom Szelag's topic in Industrial Forum
These things work nice! None of the nasty melting and gumming I was getting before, even without coolant. -
I wouldnt use 7075 unless your parts need a substantially higher yield stress (on the order of 75000psi if I recall) than 6061 (47000psi). 7075 is a good bit more expensive. 6061 machines just fine if you ask me.
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Anyone have experience with Harvey's plastic cutting tools?
Tom Szelag replied to Tom Szelag's topic in Industrial Forum
Got two of em on order. Should be here in 1-2 weeks. I'll let you all know how they work. -
Got a bunch of polypropylene tubes to machine. Noticed that Harvey has a line of endmills designed specifically for soft plastic like that. Single flute with an intersting looking design. Anyone have experience using these and know if they're all its cracked up to be?
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Machining raised panel mdf doors with sqaure corners
Tom Szelag replied to danfec's topic in Industrial Forum
Go in with a big tool, remachine a few times with smaller and smaller cutter? -
I get the feeling the shops on campus are behind the times then...always use center drills to start a hole (all our drills are HSS). "We use spot drills for chamfering holes and contours." So you use it as a chamfermill then, to break edges on countours?
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Whats the difference here. I'm well aware of what a center drill is and what its used for, but in some thread a while back regarding reaming holes someone was talking about how center drills weren't reliable enough. Is the concept not the same? Have a short, stubby, rigid tool to start a straight hole such that a longer drill can follow it straight?
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Appropriate pay for a machinist "intern"?
Tom Szelag replied to Tom Szelag's topic in Industrial Forum
Thanks for the continued input. But again, engineering is going to (hopefully) be my career. Machining is just something I enjoy and would be nice for a side job during the summers while I'm still at college. -
I'd just love to see some footage of one of these things in action. Sounds insane.
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So what exactly do you use these feed mills for? What kind of materials? It must cause a tremendous amount of wear on the spindle and consume plenty of horsepower. That's hoggin out a LOT of material. That's like gettin in there and hogging it out with a chisel!
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.137 IPT?! Jeeeez.
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That's nuts. I'm low man on the totem pole. I don't know crap, but 80IPM at 1500RPM seems high.
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Thanks. Looks like I'll give Triad MT a call and see what they got...
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Some things are intuitive, mainly the pre-existing switches. But beyond that there is obviously a lot of depth to what you can have a post do. For example the topic that was just revived about moving to a certain position for a toolchange. So how did you learn it? I've had a fair amount of programming in MATLAB and Java, but I have no idea what the syntax is for a MasterCAM post processor or what any of the variables are. EDIT - And while I'm at it what is "staging tools"?
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Happy 5-Year Anniversary eMastercam.com
Tom Szelag replied to Allan Brown's topic in Industrial Forum
Def EMastercam jam! -
Peter do you have a sample MC9 of the settings youre running that you could upload? This whole thing is new to me and I'd love to see the run times for that as opposed to conventional milling.
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quote: I have not done much in the way of machining plates (2d) from a solid model and was wondering how much time would be saved by machining it in UG vs MC.I havent used UG at all but I can't imagine it would save you much time for prismatic milling. Just make some edge geometry from your part file (if it isnt there already), chain it, and bam. Quick and easy toolpath.
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Well the first question is...where DO you want it to be?