FC8000 -75 vibrating when cutting curves

[Martin Pearson]

You will probably find that there are far to many nodes on the curves, try reducing the number of nodes and it will probably cut much more smoothly.

[Daniel Crank]

These files usually cut fine, just started doing this….

[Chris Wool]

Have you adjusted the quality setting

[Daniel Crank]

No its on quality 3, pressure 17, on straights its fine, just on curves its really slow and juddery, but cut line looks ok..
Thanks

[Steve McAdie]

Try putting a little oil in the knife holder, a signmaker by me had similar trouble and rang graphtec they told him to do this. Cured his problem. Use sewing machine oil or similar.

Steve

[Chris Wool]

steve has just offered the other reason but that results as if the knife is not rotating and judders on the vinyl.

what i think is happening is a fault in the windows driver on some poor quality TTF fonts the graphtec driver will do this also when a emboldened path has been given. as said before nodes to close. because its copied a poor outline in the first place.

outline paths created in x3 and above are fine don’t know about illy,

funny how its not so much of a problem on a roland

[Daniel Crank]

Hi
It does it on every curve on everything, every file i have it does it and every font too…
Should i try it on another pc???

Dan

[Martin Pearson]

What cutting mode are you using? You haven’t got it set to tangential emulation have you.

[Daniel Crank]

Hi tangential emulation is turned off.
I have made a quick you tube vid of this.
If you watch vid you will see it vibrates and goes really slow when cutting the zeros but flys on the rectangles ????

http://www.youtube.com/watch?v=Zfj4dvhQMAo

On this vid i cut text in X3 and have tried it on my new laptop too but it runs the same??

[Chris Wool]

draw a circle in x3 plot with a quality of 4 and drop the speed down to 30. should just go round smoothly

running any machine flat out is bad in my book under normal day use cutting faster than you can weed is just wearing the machine out.

the quality setting adjusts the acceleration between coordinates the lower the value the higher the quality the slower the acceleration, longer cut times.

are you using the windows driver or going through cutting master and plotter controller.

chris

[Daniel Crank]

Hi
I run cutter at 30 speed, 17 pressure, quality 3 and condition 1….
I changed the quality to 4, made a few circles which only had 4 nodes per circle, they were 100mm sq and it still vibrated and went really really slow like in video……
Its really getting to me now, i paid £2000 for the cutter last week, it worked fine and now this, its just taking for ever to cut large intricate files aaagggghhh!!!!

Is there anyone local to me that may help or have a look 8)
Im inbetween Worksop and Doncaster….

[Jason Xuereb]

Have you done a firmware update?

[Jason Xuereb]

I posted this on another forum so duplicating it here:

I get a lot of private messages asking for help with the Graphtec’s FC8000. I am posting this message with all my reference settings on my machines. I will slowly add all the settings on the machine so please bare with me when I get some down time. I’ve had my fair share of problems with my machine initially and I guess the manual could explain the affect of each setting on the machine a bit better then just telling us how to change them.

Firmware 1.50

CONDITION SETTINGS
Name: Half Cut
Tool: CB09U+0
Speed: 55cm/s
Force: 19
Accel: 4
Cutline Pattern: Off
Assign Tool: 1
Tangent Emulation: Off
Overcut Start: 0.7mm
Overcut End: 0.7mm
Distance Adjust: Off
Intial Downforce: 2

TOOL SETTINGS
Tool Offset Adju: X=0, Y=0
Step Pass: 0
Offset Force: 7
Offset Angle: 30
Data Sorting Area: Off
Data Sorting Tool: Off
Tool Up Speed: Auto
Condition Priority: Program
Tool Select Command: Enabled
Intial Blade: 2mm Below
Tool Up Move: Disabled
Tool Up Height: 0mm

ARMS
Mark Scan Mode: Off
Number Of Points: 2 Points
Mark Distance: X=0 Y=0
Distance Adjust Mode: User
Distance Adjust Custom Unit: 5mm
Mark Size: 20mm
Axis Origin Offset: X=0 Y=0
Sensor Offset Adjustment: X-0.4mm Y=0.2mm (This would be custom to my machine to dial it in accurately)
Mark Auto Scan: On
Paper Weight: On
Axis Alignment Tool: Light Pointer
Sensing Speed: Slow
Sensing Level: X=70 Y=90

AREA
Expand: Default
Scale: 1
Rotate: Off
Mirror: Off

[Daniel Crank]

I thank you all very much for your help but JASON…. Your the Man…

I don’t know what setting it was as many were different but its running like a dream now.
Thanks to all again.
Dan

[Jason Xuereb]

Hey Daniel,

I had the same issue as you. It took me 6 months to resolve as it was only happening on my 2nd cutter. I copied all the settings from my first machine so I don’t know which actual setting it was either but the settings I posted seem to make it work.

Enjoy your new found faster circle cutting abilities.

[Daniel Crank]

Thanks again Jason 😀

[Joachim Kurz]

Hello
I had the same problem until I found this thread.
The important setting is the offset angle in the tool settings. I have changed it to 5 and FC 8000 is still moving smoothly. But when I decrease it to 1 it starts vibrating. Thanks to Jason for this hint :-).
JoKu

[Jason Xuereb]

Hey Joachim glad you nailed down which individual setting it was.

I had an order of close to a million labels. I ordered a second machine to cope with the job but the new cutter was cutting at like double the speed even though it was cutting the same file with the same speed settings etc.

With the new machine all i did was unpack it and turn it on. Didn’t mess with any of the settings. I’m assuming the tech who set up our first machine had no idea what he was doing or it came from the factory like that.

Glad everyone is cutting smoothly now.