Graphtec FC9000, not able to cut a 0.75" long octagon,

[gpslitt]

For the Blade start point, i keep at y axis start, which straight the blade to start, thats y first line is always straight, problem starts when it takes first angle.

I tried vinyl, laminated vinyl and normal printer paper A4 doesn't change the result. yes clockwise

regds

 

[dypinc]

In CM5 there is a setting to change cutting direction. Have you tried counter clock wise?

 

[JBurton]

I guess the first thing I would try is to do like maybe 8 up and see if that makes any difference as possibly there is some confusion with the registration marks being so close together

That's what I'm wondering. Since the marks are so close, it's compensating for any rotation of the media, therefore overcompensating on something so small.
Try printing a grid 4x4 and see what it does.

 

[gpslitt]

I tried both, clockwise and anticlockwise, didnt help.

 

[gpslitt]

I printed 4x4 grid and the problem remains.

sorry for red color spill, i tried to fill the cuts with red color to be more visible, didn't worked

 

[gpslitt]

Just to add I am printing these shapes with shape stroke 0.5 pt.

 

[dypinc]

Just to add I am printing these shapes with shape stroke 0.5 pt.

Were you able to try a different blade holder. Something seems loose or blade is binding. Also try just cutting that shape on vinyl without registration marks. No need to print just to see if it will cut straight.

 

[gpslitt]

Were you able to try a different blade holder. Something seems loose or blade is binding. Also try just cutting that shape on vinyl without registration marks. No need to print just to see if it will cut straight.

Yes I tried with new blades and two different holders

Regds..Garry

 

[dypinc]

I went back and looked at the last photos you posted. Looks like the blade is set to deep and possibly the force as well. I would put some unprinted vinyl in and cut the shape starting with setting the force depth without the blade protruding and lower the blade in small increments (like 1/8 turns) until you can see a cut. Will it do it at the first sign of a cut?

I guess we should ask what blade, angle and what holder?

 

[gpslitt]

I went back and looked at the last photos you posted. Looks like the blade is set to deep and possibly the force as well. I would put some unprinted vinyl in and cut the shape starting with setting the force depth without the blade protruding and lower the blade in small increments (like 1/8 turns) until you can see a cut. Will it do it at the first sign of a cut?

I guess we should ask what blade, angle and what holder?

The blade is not deep..force is just 5 and speed 20 and lastly I tried on printer paper for registration marks. it just scratch the paper.

I am trying on simple vinyl on all forces and all speeds. Nothing helps

Just this shape..I even tried drawing the shape with all individual lines too..no help

 

[dypinc]

The blade is not deep..force is just 5 and speed 20 and lastly I tried on printer paper for registration marks. it just scratch the paper.

I am trying on simple vinyl on all forces and all speeds. Nothing helps

Just this shape..I even tried drawing the shape with all individual lines too..no help

I was talking about Condition 3/3 #4 Blade Adjust.

 

[JBurton]

I imported this file into my corel, and it looks like the 45 cham on the corners are 'curves', whereas the vertical and horizontal lines are 'lines'. (Not sure what distinction illustrator makes between those two.)
At any rate I converted it all to lines in corel and generated this pdf. Try running this shape for kicks.

If this works, I predict the graphtec was reading the ever so slight imperfections between the printer and loading, and it figured it was better to deviate the entire line, seeing as how it was already a curve, as opposed to changing the direction that the plotter needed to travel to hit the next point.

 

[dypinc]

I imported this file into my corel, and it looks like the 45 cham on the corners are 'curves', whereas the vertical and horizontal lines are 'lines'. (Not sure what distinction illustrator makes between those two.)
At any rate I converted it all to lines in corel and generated this pdf. Try running this shape for kicks.

If this works, I predict the graphtec was reading the ever so slight imperfections between the printer and loading, and it figured it was better to deviate the entire line, seeing as how it was already a curve, as opposed to changing the direction that the plotter needed to travel to hit the next point.

Interesting find but the IL file with the curves did not do that for me. Cutting shape from IL-CM-FC9000-160.

 

[JBurton]

Interesting find but the IL file with the curves did not do that for me. Cutting shape from IL-CM-FC9000-160.

Did you print it or just plot it? My theory hinges on the marks being read.
I never did see the ai file get posted, or do you mean you imported the pdf to illustrator?

 

[gpslitt]

I was talking about Condition 3/3 #4 Blade Adjust.

I imported this file into my corel, and it looks like the 45 cham on the corners are 'curves', whereas the vertical and horizontal lines are 'lines'. (Not sure what distinction illustrator makes between those two.)
At any rate I converted it all to lines in corel and generated this pdf. Try running this shape for kicks.

If this works, I predict the graphtec was reading the ever so slight imperfections between the printer and loading, and it figured it was better to deviate the entire line, seeing as how it was already a curve, as opposed to changing the direction that the plotter needed to travel to hit the next point.

First I draw the square, drag in with holding down button, making this ocatgon.
Even i try drawing an ocatgon with all sides same
At last I draw all straight lines to make an ocatgon, still it did the same swaying cutting.

if anybody has cm4 and graphtec fc9000 160, try this if works, i tried downloading cm4 over cm5 didnt worked

anybody need AI file, can reach me at gpslitt@gmail.com

 

[dypinc]

Did you print it or just plot it? My theory hinges on the marks being read.
I never did see the ai file get posted, or do you mean you imported the pdf to illustrator?

Just plotted it. After see his problem still existed with 16up I didn't figured it had anything to do with reading the marks.
I opened the pdf in illustrator.

 

[dypinc]

First I draw the square, drag in with holding down button, making this ocatgon.
Even i try drawing an ocatgon with all sides same
At last I draw all straight lines to make an ocatgon, still it did the same swaying cutting.

if anybody has cm4 and graphtec fc9000 160, try this if works, i tried downloading cm4 over cm5 didnt worked

anybody need AI file, can reach me at gpslitt@gmail.com

I think your problem is a mechanical issue with your cutter. Did you do the test I suggested on unprinted vinyl?

 

[gpslitt]

I think your problem is a mechanical issue with your cutter. Did you do the test I suggested on unprinted vinyl?

Its brand new plotter grpahtec fc9000 160, I bought it last month. And this is my first cutter.
Would have been a mechanical issue, its plotting everything else, perfect,
Even i have files with 3/8" round 100 holes in a 36x36" print
Even I print 3/8"x 1" rectangular 600 cuts per 36" x36" sdheet, all perefect dot
I cut lot of shapes as tiny as 1/4" x 5/8", all other shapes are good, except ocatgon
I was using mimaki cjv150-75 before, never had issue with this shape, just slow

Graphtec support seems helpless too, wrote "For most operators, this would be acceptable, but I understand you are looking for something a little tighter."

regds..

 

[dypinc]

Its brand new plotter grpahtec fc9000 160, I bought it last month. And this is my first cutter.
Would have been a mechanical issue, its plotting everything else, perfect,
Even i have files with 3/8" round 100 holes in a 36x36" print
Even I print 3/8"x 1" rectangular 600 cuts per 36" x36" sdheet, all perefect dot
I cut lot of shapes as tiny as 1/4" x 5/8", all other shapes are good, except ocatgon
I was using mimaki cjv150-75 before, never had issue with this shape, just slow

Graphtec support seems helpless too, wrote "For most operators, this would be acceptable, but I understand you are looking for something a little tighter."

regds..

Good point. Mine is about a year old but it does not do that at least not just plotting.

 

[gpslitt]

I was talking about Condition 3/3 #4 Blade Adjust.

I tried to set blade length with the condition3/3 #4, but not able to set it up. It keep saying 0.1 turn cw and i turn less than 1/2 mm ad it says ccw 0.2.. didnt worked
I do it manually, scoring a line till it cut the entire material and no scratch on second bottom sheet. it works for me