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yenned45

fine cutting settings?

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Greetings! I am using a UScutter MH-871 plotter.  I am cutting a project that contains fine points within it. My question is; what is the recommended settings to ensure a better cut to weed? My current settings are: cut speed 020 mm/s; cut pressure 100g; up_speed 380 mm/s; baud rate 9600. Thank you for any and all help regarding this matter.

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each cutter will be different - fine detail requires a careful set up especially with a value cutter.  slow the cutter way down, least amount of blade exposure possible (recommend a 60 degree blade - I use cleancut blades only) and a good quality vinyl.  taking the time to get the setting right for your particular plotter will give you the best results - someone else setting won't be the same on another plotter as they are all slightly different - with the mh series there have been at least 3 versions of the mainboards with different standards and even things like blade adjustment and wear play a factor in say offset 

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I concur. I would say start with the settings in this order: Blade depth (NOT a half credit card as sometimes noted) Just the very least amount possible to be able to cut through the vinyl but not all the way through the carrier sheet. Do it by hand with the blade holder out of the cutter. If you can cut all the way through the paper backing with medium pressure then you have too much.  Then pressure (work up from a rough guess until it cuts through the vinyl and lightly scratched the paper.  Followed by speed, I recommend 1/4 to 1/3 of your machines max capability. So if it can run as high as 800 mm/sec set it at 200. Speed doesn't help you at any time with cutting but it's especially bad with a cheap cutter.  If you are having issues check your blade offset and sometimes people add a little overcut (usually about the same amount as your blade offset). All these terms are searchable and each one is a very precise adjustment. 

On your vinyl choice I, once you think you have your setting dialed in I would test with a few different vinyl brands and types. You will be amazed at the difference between rolls. Sometimes even within the same brand it will be different. I have a 50yd roll of 3M calendared that I bought from a local supplier thinking that 3m was a reputable brand so it would be safe. Not so. Hate the stuff. If it's not a nice big letter it weeds like crap and I have a $3500 cutter! I only use it for big easy jobs now cause it's so lousy to work with. Oracle 651 is WAY better. For tiny weeding I use either Oracal 751/951 or Gerber 225. Costs more per yd but the savings in time pays for the difference. 

Good luck with your project. It takes time and patience to dial in. 

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