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Messages - Tweakie.CNC

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3711
Show"N"Tell ( Your Machines) / Re: Plastic Injection Molding
« on: January 08, 2014, 01:35:26 AM »
Sounds like a very interesting project, I look forward to seeing the pictures of the build.

Tweakie.

3712
Quote
I don't have a programing background but how hard would it be to make a piece of software that would take a video, look for the registration markers based on the g-code (or dxf or whatever) and then compare their angle to the g-code and align to the g-code to what it saw ?

Because the machine’s camera is unlikely to be able to view the whole job in one frame and it would be a waste of machine hours scanning the total work area just looking for the markers my suggestion would be…

A software program (plugin) to view an on-screen display of the original artwork where pixel size versus steps per unit is known – using the mouse, the registration marker positions are located and stored, their position is then translated to the necessary X-Y co-ordinates for the machine to move the camera / machine head to each selected marker. The camera then centres each registration mark in turn or is used to determine the difference in the pixels position (not sure just how to do this yet but there must be a solution) and the difference between actual position and original image position of each marker is calculated. This data is then used to set the Mach3  X and Y scale factors (if necessary) and ‘local system rotate’.

It would be challenging project to do but, in my opinion, it is entirely possible.

Tweakie.

3713
The angle of rotation and linear scale aspects are no problem for Mach3 to resolve (as I think I demonstrated in my short video) but, as yet, there is no software to make the camera recognition of the registration marks automatic, it has to be done manually.

As I always say; everything is possible it just requires time and effort.

Tweakie.

3714
Show"N"Tell ( Your Machines) / Re: mach3 3D printer
« on: January 06, 2014, 11:28:46 AM »
Excellent work Fixittt.

Tweakie.

3715
General Mach Discussion / Re: Mach3 CRP4848 Setup Help Needed!
« on: January 06, 2014, 11:24:51 AM »
Check through all the information here to make sure your configuration is correct (including the BIOS settings). http://www.geckodrive.com/geckodrive-step-motor-drives/g540.html

Tweakie.

3716
Hi Frank,

It's a long shot but try selecting Sherline 1/2 Pulse Mode (Config ; Ports & Pins) apply, do a restart and see if that makes a difference.

Tweakie.

3717
Tangent Corner / Re: Pyrography.
« on: January 04, 2014, 11:11:25 AM »
Hi Brett,

The idea of routing a 3D relief then lasering the detail and shading over the top was suggested over 12 months ago but, so far, I have not been able to get it just right.
John’s (PicEngraver) excellent software http://www.machsupport.com/forum/index.php/topic,26003.0.html is well capable of doing the job if only I was more capable at using it.  :D

Tweakie.

3718
Tangent Corner / Re: Pyrography.
« on: January 04, 2014, 10:50:36 AM »
Hi Zsolt,

The temperature is set by 'trial and error', depending on the wood stock, and this in turn is then balanced out with the average feed-rate. It's all very experimental but those that have persevered seem to be finding the right combinations. There are more details of the 'home constructed' current regulator etc. here http://hobbycncart.com/forum/46-234-1 (you may need to use Google Translate).

Tweakie.

3719
Tangent Corner / Re: Pyrography.
« on: January 04, 2014, 07:58:10 AM »
Quote
Maybe the duck carvers will get treated to a 3D version someday.

I am sure it will happen Rich, just a matter of time.  ;)

Incidentally, the hybrid (VCarve then laser image) is still in it's early days but it is progressing well. This example is not mine (credit to Jerry) but illustrates the potential.

Tweakie.

3720
Tangent Corner / Re: Pyrography.
« on: January 04, 2014, 03:49:39 AM »
Just some more pictures of others work which I think deserve being posted here.
Certainly Mach3 operating with variable feed-rate works extremely well once you get the hang of it.

Tweakie.

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