SPARKY

"Duck Duck Grey Duck FTMFW!" (theduckduck) 05/23/2017 at 09:01 • Filed to: None

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Making stuffs at work

Duck Duck Grey Duck FTMFW! > Duck Duck Grey Duck FTMFW! 05/23/2017 at 09:09

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Material is .5"X2" hot rolled 1018 mild steel. Il the first operation is a helical cut down in to make a clearance hole. The second operation, the endmill spirals out in .05" steps to make a 1" hole. The third operation, it’s stepping over .05" at 130 Inches Per Minute. This operation follows the concept of Troichoidal milling. We don’t have any program to write the code to do this, so I figured it out myself. The fourth operation cleans the slot up.

vondon302 > Duck Duck Grey Duck FTMFW! 05/23/2017 at 09:15

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I miss CNC and making stuff. Used to be tool path programmer now I put little boxes into big boxes at twice the pay. The world is a confusing place.

vondon302 > Duck Duck Grey Duck FTMFW! 05/23/2017 at 09:16

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Also 130 ipm is flying!

TorqueToYield > Duck Duck Grey Duck FTMFW! 05/23/2017 at 09:59

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No coolant flood?

Duck Duck Grey Duck FTMFW! > TorqueToYield 05/23/2017 at 10:01

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No, it’s not recommended. The coolant will actually increase tool wear because of thermal shock.

Duck Duck Grey Duck FTMFW! > vondon302 05/23/2017 at 10:03

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That’s what is recommended. You have to realize you are barely loading the tool because it’s not a full slot pass. You’re just skimming it.

TorqueToYield > Duck Duck Grey Duck FTMFW! 05/23/2017 at 10:04

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Interesting. I only do design, I let the machinists handle the details and stay out of the way.

I would like to set up a hoppy CNC mill in my basement one day when I have enough $$ and my wife isn’t looking.

vondon302 > Duck Duck Grey Duck FTMFW! 05/23/2017 at 10:09

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Gotcha. Looks cool too. It’s been over a decade since I was a machinist.

Duck Duck Grey Duck FTMFW! > vondon302 05/23/2017 at 12:14

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I highly recommend looking up troichoidal milling on YouTube. It’s insane to watch. What I am doing is mild compared to some of the videos on there.

vondon302 > Duck Duck Grey Duck FTMFW! 05/23/2017 at 12:33

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Thanks will do.