Cutting 5/8 with 65amp consumables. First try

[Oldsarge]

The PM 85 is really earning a special place in my heart! This is my first attempt at 5/8" 22ipm 65 amps, using DCC and TAP from Candcnc, no height control even though I have the new DTHC IV ether cut, I don't use it on small pieces like these... 1" to 6" circles...

This is a blacksmith bending jig I'm making. These are going to be the dies for bending round and square stock when it comes out of the forge. I used the plate marker to scribe the center holes for drilling, and it works like a charm!

Thoughts?

Oldsarge

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[acourtjester]

You and the 85 make a fine team
Did you use a 65 amp tip??

[Oldsarge]

You and the 85 make a fine team
Did you use a 65 amp tip??

Yes, 65 Amps, straight with the book settings....

I attempted a piece of 3/4" earlier in the day, and didn't have as good results.... It was mostly my fault, when I created the tool, I missed on the preset for amps, and the cut started out at 45 amps! I restarted at 85, but going over that first cut that wasn't completely through was hard.... I slowed way down, and salvaged the piece, but it wasn't nearly as nice as the 5/8 stuff....

Thanks again for that video, I have visions of power hammers dancing through my head now, and already can see so many pieces that I'm going to cut on the table for it.... Going to be a combination of several styles I've seen.... Big project though! Can't find anybody hereabouts that has a scrap piece of 8" diameter by 36" round bar for the anvil!

Oldsarge

[jimcolt]

Nice cuts, as should be expected! Use the height control! I use the height control with my Powermax85 on every cut from 26 gauge up through 1.5". The torch is always at the right pierce and cut height....far better than if I tried to control it.

[Brand X]

This was my first attempt at 5/8 mild steel. a few months ago.. Esab at 70 amps at about the same speed. I know my friend cuts 30 ipm on .500 at 65 amps. (book speeds) on his hypertherm 85.I cut .500 at 32 IPM. Cuts are excellent. I use my DTHC IV at all times, and it comes out like this.. I really like using the DTHC IV because it does such a nice job, if you let it.. One key is to have enough time set to get the lead-in done before the THC starts to take over.. Too much time is about as bad on some things.. Just got the settings right, and really no need to touch it again.Except for setting the voltage at the start..