Beat me up
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- 2 Star Member
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Beat me up
Hello Ladies and gentlemen, Ok time to give some constructive criticism, What do we think I'm doing wrong with my cutting process I'm running at 75 IPM and 95 IPM 3/16 A-36 at about 50 amps, Ok It's a homemade Table running Sheetcam and Mach 3 software and a Hypertherm PM65,( Best part of tab le ) I want to improve my cut quality and pricing.
- acourtjester
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Re: Beat me up
If you are not using lead in/outs I would start, looks like the divots are caused by that. And I would look for any loose movement action with the axis assemblies. Loose sets screws slipping pulleys there seems to be some out of round in the holes.
DIY 4X4 Plasma/Router Table
Hypertherm PM65 Machine Torch
Drag Knife and Scribe
Miller Mig welder
13" metal lathe
Small Mill
Everlast PowerTig 255 EXT
Hypertherm PM65 Machine Torch
Drag Knife and Scribe
Miller Mig welder
13" metal lathe
Small Mill
Everlast PowerTig 255 EXT
- cstroke
- 3 Star Elite Contributing Member
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Re: Beat me up
Simple thing to check is make sure gantry is square and torch is square as well..
Any binding can cause issues.
Any binding can cause issues.
6’x12’ Dynatorch powermax 85
12’ Wysong brake
5’x 5/16’ wysong rolls
3.8’x10’ shear
65 Ton ironworker
Boss laser 3655 150 watt CO2.
SFX 100watt Mopa
Quicncy 7.5hp
Square wave tig, Multimatics, Miller bobcat efi.
12’ Wysong brake
5’x 5/16’ wysong rolls
3.8’x10’ shear
65 Ton ironworker
Boss laser 3655 150 watt CO2.
SFX 100watt Mopa
Quicncy 7.5hp
Square wave tig, Multimatics, Miller bobcat efi.
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Re: Beat me up
I'm with acourtjester. Looks like adding lead ins and finding any slop in your machine will help out a lot. Once you get that going I would begin experimenting with speeds as you can likely eliminate most of that dross with faster cut speeds. Trying to run faster cut speeds before eliminating the slop in your machine will only exaggerate the problem were seeing on your XY direction changes.
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Re: Beat me up
Thanks guys, I did find some slop in 1 of my Y axis steppers and some in the Z axis stepper , I was up around 95 IPM on 11 ga. I want to slow down but sounds like I need to do the opposite?? speed it up. Ill cut more and post the pics.
Thanks again, Kenny
Thanks again, Kenny
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Re: Beat me up
Forgot this, How long a lead in/out I'm running .1875"
- acourtjester
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Re: Beat me up
a few things to check is if it will interfere with another part for outside lead ins or to big for inside cuts, long enough so you don't see dimples where they enter the cut line.
DIY 4X4 Plasma/Router Table
Hypertherm PM65 Machine Torch
Drag Knife and Scribe
Miller Mig welder
13" metal lathe
Small Mill
Everlast PowerTig 255 EXT
Hypertherm PM65 Machine Torch
Drag Knife and Scribe
Miller Mig welder
13" metal lathe
Small Mill
Everlast PowerTig 255 EXT
- djreiswig
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- Location: SE Nebraska
Re: Beat me up
I usually set leadins for the material thickness.
2014 Bulltear (StarLab) 4x8
C&CNC EtherCut
Mach3, SheetCam, Draftsight
Hypertherm PM65
Oxy/Acetylene Flame Torch
Pneumatic Plate Marker, Ohmic, 10 inch Rotary Chuck (in progress)
C&CNC EtherCut
Mach3, SheetCam, Draftsight
Hypertherm PM65
Oxy/Acetylene Flame Torch
Pneumatic Plate Marker, Ohmic, 10 inch Rotary Chuck (in progress)
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- 4.5 Star Elite Contributing Member
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Re: Beat me up
Can't go wrong with a longer lead in, .1875 isn't very long in my opinion, I like at least .250 if there is room.
I just think speeding it up will help you to eliminate some of that dross but some tables don't like moving at higher speeds and get sloppy.
I just think speeding it up will help you to eliminate some of that dross but some tables don't like moving at higher speeds and get sloppy.
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Re: Beat me up
Make sure there is not an absolute stop at the end of your lead in, if the torch is camping out a second before it continues it burns a divot.
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Re: Beat me up
Thanks guys I will check all your lead-in / outs and make sure the torch isn't stopping or slowing too much, Plus run up around 110 IPM to see what changes.. Thanks again.