tangental knife post

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gttool
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tangental knife post

Post by gttool » Wed Apr 07, 2021 10:51 pm

Hi, Have just completed a retrofit to a fabric cutting machine with a tangental ( roller) knife
Has x,y,a axis Z is an air cylinder 3 fixed tools
I currently have the machine operational with separate cad and cam packages but trying to streamline the process
I do have an operational post , how do i load it to Qcad ?

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andrew
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Re: tangental knife post

Post by andrew » Thu Apr 08, 2021 6:55 am

In what format do you have the post processor?

QCAD/CAM uses post processors in ECMAScript. Unless your post processor was written specifically for QCAD/CAM it will not work. Perhaps you can attach your post processor or an example G-Code file for your machine controller, so we can be more specific about how much work it would be to create a post processor for your machine.

gttool
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Re: tangental knife post

Post by gttool » Thu Apr 08, 2021 8:03 am

Attached a gcode file
M codes select tools M3 M4 M7 - M5 resets the tool
this is just cutting a rectangle - knife lifts and rotates in corners
Attachments
1000,500..cnc
(781 Bytes) Downloaded 17 times

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andrew
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Re: tangental knife post

Post by andrew » Thu Apr 08, 2021 9:22 am

Thanks. Such a post processor could be implemented relatively easily in QCAD/CAM. However, it's not something we have ready out of the box. Do you have an example for cutting an arc shape?

gttool
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Re: tangental knife post

Post by gttool » Fri Apr 09, 2021 5:42 am

Here is an example of radius cutting
Attachments
squ circle.cnc
(815 Bytes) Downloaded 15 times

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andrew
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Re: tangental knife post

Post by andrew » Fri Apr 09, 2021 6:59 am

Thanks.

A post processor for this machine is possible though not straightforward due to the different nature of the process (compared with laser cutting or milling).

Are you planning on writing a post processor yourself or are you looking for help or a finished post processor?

gttool
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Re: tangental knife post

Post by gttool » Sat Apr 10, 2021 1:37 am

Sent you a pm

gttool
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Re: tangental knife post

Post by gttool » Mon Apr 12, 2021 11:52 am

Was hoping you would consider producing one with some assistance
The one i am currently using is perfect but trying to get an all in one cadcam program

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andrew
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Re: tangental knife post

Post by andrew » Tue Apr 13, 2021 8:11 am

OK. I've added a feature request at:
https://www.qcad.org/bugtracker/index.p ... sk_id=2227

gttool
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Re: tangental knife post

Post by gttool » Wed Apr 14, 2021 10:43 am

Thanks Andrew ,
would be great if it could be implemented
The post i sent you is of any help ?

gttool
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Posts: 7
Joined: Wed Apr 07, 2021 10:43 pm

Re: tangental knife post

Post by gttool » Wed Apr 14, 2021 11:07 am

Thanks Andrew ,
would be great if it could be implemented
The post i sent you is of any help ?

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