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Messages - cejdasan

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1
Feature Requests / Re: Print to Cut functionality & Mach3 on router
« on: April 28, 2013, 03:28:49 PM »
Hi Guys,

It is brilliant that that some smart minds attending to my problem. The question of linear and non-linear distortion is not as important to me as the fact whether the whole process could be automated in Mach3 as Ian described in his post to produce 10s/100s/1000s. The automated production is the key problem.

It is true that when you print on vinyl and mount it on substrate that non-linear distortion occur. It occur less so if flat bed applicator is used as you effectively roll the print with same force on substrate. If you wet apply or if you skilled enough dry apply the sheet vinyl with strokes of squeegee you create obviously more non-linear stretch. Non linear distortions only happen when you print on roll media. If you have flatbed printer and you print directly on substrate only linear distortions occur.

It is quite normal in signmaking to add bleed (additional colour to extend the image over the vector cut line) to contour cut image to avoid white non printed borders in case of vinyl print being contour cut on plotter. It is to create shaped sticker.

The packages as i-Cut and Optiscout can compensate for non-linear distortion and therefore the graphics designer is not required to add any bleed to combat the white borders. But as I sad earlier we are relatively small sign company which can benefit from automated cutting of sheet material where the design was printed on roll media and mounted hard substrate. We would not mind to spend little more time designing the artwork if only we can then mount it on sheet and cut it in one operation on our router in similar fashion we produce shaped stickers on vinyl plotter.

Keep the good work.

Petr.


2
Feature Requests / Re: Print to Cut functionality & Mach3 on router
« on: April 28, 2013, 06:23:13 AM »
Hi Ian,

You are absolutely correct. That is what we are looking for. Controller which has this capability and does not cost arm and leg.

The document I was referring to in my first post could be found on www.a2mc-cnc.com website. It is dedicated website about machine controller from AXYZ International. In the software section you can scroll down and you find AXYZ Vision system icon and bellow is menu from which you can select the pdf I was referring to in my first post. They might be blocking direct download from other website. The only way then might be to go to A2MC website and view the pdf or go to my second post and the file is attached on the bottom of the post.

This week I had discussion with AXYZ technician about the pros and cons of the AVS app and i-CUt and Optiscout packages. It became very clear that there are benefits to have the application be running inside of controller as there are not programing and running issues. AXYZ in its app do not support non-linear distortions which are created by printing vinyl and laminating the print onto hard board/material. That in itself does not mean you can not get acceptable results when processing such substrates. You just have to add some bleed around the shape itself which we normally do when contour cutting printed vinyl on plotter. They only recommended to apply printed vinyl by flatbed applicator (RollsRoller www.rollsroller.co.uk or similar) to keep the distortions to minimum and add bleed. Results are comparable to productivity packages as I-Cut or Optiscout. These softwares are aimed on high volume production which we are certainly not. But if you ask any signmaker whether he would wish his router could not only cut shapes but cut printed shapes too you always receive cheers. It is one of the areas which seems to be growing rapidly but is left unattended by producers of universal CNC controllers. I was looking extensively all over the web whether there is not some Chinese manufacturer but without success.

If anyone knows about such package please post the link. It would be very much appreciated.

Tweakie seems to be very good with math. Perhaps he could have the skills to write such add-on software and make himself some buck.

Regards.

Petr.

3
Feature Requests / Re: Print to Cut functionality & Mach3 on router
« on: April 21, 2013, 06:03:35 AM »
Hi Brett,

Klaus video plug-in is not really suitable for our needs. His plug-in is more about aligning the whole cut file on substrate. It took me quite long time to get my head around it. Here it goes:

What we are looking for is essentially way to add registrations marks (dots) around individual parts in Illustrator (or any other designs package). Dots needs to be in different layer and would have its own cut path which needs to be processed by camera first before any machining takes place. What normally happens when you print on vinyl and mount it on hard board is that the printed image gets distorted. Similar distortions happen when you print directly on rigid board. These distortions needs to be compensated fro before the cut path is executed. That is where the camera comes to play. It drives along the sheet and reads the predefined spots from design package and records its position than it compare it with the actual design file. When it finds that the positions are not matching it applies corrections to cut file before machining. Camera must be possible to be assigned as tool in Mach as it needs to be able to follow the dot tool path. Software what work with the camera must be able to compensate for distortions and be able to change the machined tool path. The compensated tool path can be then machined.

There are packages on the market which has this functionality i-Cut or Optiscout but they are expensive and has lot of functionality which we simply do no require. More importantly they taking over control of the machine to execute the machine code which means that some of the advanced machining strategies are not possible.

The best solution I could find was AXYZ AVS app which is add-on and when installed it becomes part of their A2MC controller. It is proprietary to AXYZ International and it is written for WindowsCE which is OS on their controller.

We have been running successfully our router in my old company by Mach3 and been happy with its performance and features. If print to cut functionality would be possible to add in similar manner as AXYZ did it with their controller it surely could be good money spinner as many smaller sign and printing companies would find this feature attractive. You can use simple IP web camera with LED lighting and this app/add-on to cut printed shapes from rigid substrates.

Hope it make sense.

Regards.

Petr.

4
Feature Requests / Print to Cut functionality & Mach3 on router
« on: February 18, 2013, 08:34:55 AM »
Is there way that this functionality can be added to Mach3. Something like AXYZ AVS Vision Registration System or integrate i-Cut from Esko.

http://www.a2mc-cnc.com/downloads/docs/files/devices/software/avs/AXYZ%20Vision%20System.pdf

http://www.icutvision.com/

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