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  #11  
Old 08-15-2015, 12:21 PM
rcrawford rcrawford is offline
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3 letter monograms.

You could hold them with vacuum jigs, but not with spoil board vacuum.
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  #12  
Old 08-15-2015, 12:32 PM
Hallex Hallex is offline
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Use a climb ,conventional strategy .I cut parts for some sign shops .large stuff I can run quick 350 -400IPM (and some times faster).Small stuff (like monograms)150 - 225 IPM .spindle speed might very 13500- 16500RPM
you have to listen for it .Start CONSERVATIVE
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  #13  
Old 08-15-2015, 12:37 PM
Hallex Hallex is offline
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And use a Sharp bit if u want to cut down on sanding MDF That you've cutting dulls those new bits quick hope this helps
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  #14  
Old 08-15-2015, 02:07 PM
de5 de5 is offline
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So how big is a monogram? Sounds like this is something standard that everyone knows about but me.
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Cobra 404 ATC with 12 tool positions & 4th Axis (2012-present)
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  #15  
Old 08-16-2015, 10:04 AM
TMiles TMiles is offline
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Please let us know how the pressure foot works out for you. I hate tabs too!!!!
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CAMaster Stinger IV ATC
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Vcarve
Hurricane Vacuum
2015 model
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  #16  
Old 08-16-2015, 11:13 AM
rcrawford rcrawford is offline
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Quote:
Originally Posted by de5 View Post
So how big is a monogram? Sounds like this is something standard that everyone knows about but me.
Just 3 letters, usually in script font that overlap. Its not so much the size, but the thin profile of the lettering that makes it bad for spoil board vacuum hold down.
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Cobra 408 ATC with recoil
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  #17  
Old 08-16-2015, 06:06 PM
Hallex Hallex is offline
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Second that on the pressure foot .I cut a lot of small letters 3"-6" usually
Out of PVC for some other shops .I charge shop time for tab removal. but the edges hardly need much if anything .if I could get the the same thing without the shop time it sure help me to be more competitive
Please let us know how it works
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  #18  
Old 08-16-2015, 06:48 PM
TMiles TMiles is offline
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Charlie, check out 3 letter monograms on Pinterest. This will help you figure out what we are talking about. They're pretty popular these days but the trick is figuring out feeds, speeds, and tabs.
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Todd Miles
Sumter,SC
shbofsc@yahoo.com
CAMaster Stinger IV ATC
WinCNC
Vcarve
Hurricane Vacuum
2015 model
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  #19  
Old 08-16-2015, 09:47 PM
rcrawford rcrawford is offline
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Quote:
Originally Posted by Hallex View Post
Second that on the pressure foot .I cut a lot of small letters 3"-6" usually
Out of PVC for some other shops .I charge shop time for tab removal. but the edges hardly need much if anything .if I could get the the same thing without the shop time it sure help me to be more competitive
Please let us know how it works
I'll definitely let you know how the pressure foot works. I had it shipped to my in-laws cabin in Montana. I'm heading down there for vacation next week, then will be home to try it out at the beginning of September. Then I need to figure out a way to attach it to my machine!

I also designed a roller system to fit on my Cobra, but never got around to building it. Two 4' long rollers on either side of the spindle, attached to the gantry so the spindle could move back and forth along the X axis without interfering with the rollers. The rollers would press down on the sheets to keep parts in place while cutting. It was more for cabinet parts, to aid the weak vacuum I had at the time. I think a pressure foot would work better for smaller parts, but I can't do automatic tool changes with a pressure foot in place!
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Cobra 408 ATC with recoil
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www.cherryleaf-rustle.com

Last edited by rcrawford; 08-16-2015 at 09:50 PM.
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  #20  
Old 08-23-2015, 09:23 PM
TMiles TMiles is offline
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Well we got our MDO and we've found this it cuts great and is a good product to work with. We are using a 1/4 compression bit. We are cutting at 140 ipm with a spindle speed of 14,500 rpm's.
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CAMaster Stinger IV ATC
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Vcarve
Hurricane Vacuum
2015 model
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