Messages

5401

Mach SDK plugin questions and answers. / Re: Impact engraving plugin

« on: October 06, 2012, 02:14:45 AM »

Hi Pasquale,

I think you are on the right track with the voltage. I am currently using 72Volts but have found that fine control of the pulse timing can also provide an increase in repetition frequency. As long as the voltage is removed just prior to impact the rebound increases the speed of the return stroke.

I am looking forward to hearing more about your developments and progress.

Tweakie.

5402

General Mach Discussion / Re: New people welcome !! Come in here and introduce your self!

« on: October 06, 2012, 01:56:17 AM »

Welcome to the forum guys.

Hi Belin, there are more girls here than you may think 

Hi Pete, nice to have another member from the UK (I am just the other side of the Thames at Southend-on-Sea).

Hi Bse, If you post your question as a new topic in the general section it will get more exposure and someone will know the answer.

Tweakie.

5403

Mach SDK plugin questions and answers. / Re: Impact engraving plugin

« on: October 05, 2012, 12:26:38 PM »

Excellent work Pasquale.

What voltage are you using to drive your magnet ??

Tweakie.

5404

Show"N"Tell ( Your Machines) / Re: The Laser Project.

« on: October 05, 2012, 12:02:44 PM »

During recent work, using the Mach3 Impact / Laser Engraving plugin when engraving photographic images into wood (similar to the one shown in the previous post) it became apparent that in order to re-produce the lighter shades the required laser output power was burning too deeply into the darker portions and loosing some of the detail present in those areas.

To offset this problem I have made a small change to the plugin’s .dll to incorporate a user selectable Greyscale Compression feature the function of which is shown in the following picture. This function essentially alters the ratio of output pulses in relation to pixel value so that a different balance is achieved over the total range of values with the density of the low value pixels increased thus allowing laser output power to be reduced and create improved detail within the high value pixel areas of the work.

I hope this change may be useful to others using the plugin and the latest version of the .dll and it’s associated .pdf document can be downloaded from here;


Engraving.dll   http://www.cooperman.talktalk.net/Engraving.dll

Engraving.pdf   http://www.cooperman.talktalk.net/Engraving.pdf

Tweakie.

5405

Show"N"Tell ( Your Machines) / Re: The Laser Project.

« on: October 04, 2012, 03:45:31 AM »

This classic image of Ashley Olsen has been laser cut into Obechi.

This was produced using the Mach3 Impact / Laser plugin with a step-over of 0.2mm and a feed-rate of 3000mm/min. The laser beam was slightly de-focussed to cause a small increase in the spot size to create a better blending of the horizontal scan lines.

The dark areas essentially consist of carbon soot so images produced in this manner need to be sealed (perhaps using a lacquer spray) to make them more durable, if they are to be preserved.

Tweakie.

5406

Building or Buying a Wood routing table.. Beginnners guide.. / Re: Communication problems!

« on: October 04, 2012, 03:05:29 AM »

Check that you have the correct address specified for your parallel port and also that the port is indeed working. Also check you ports and pins configuration data.
It may also be worth checking your parallel cable for continuity.

Some more details of your system, drivers etc may be helpful in identifying the problem.

Tweakie.

5407

General Mach Discussion / Re: Mach3 Install / setup problems

« on: October 04, 2012, 02:57:12 AM »

Hi Ron,

Welcome to the forum. I think the easiest way forward is to try another PC.

(I have a couple of old PC's, some run Mach3 and some don't although the basic specifications of each are very similar).

Tweakie.

5408

Share Your GCode / Re: Free depth map and tutorials

« on: October 03, 2012, 04:02:26 AM »

Hi Pasquale,

I think that is the good thing about forums such as this - we all learn from each other.

I am really looking forward to seeing some of your Impact Engraving work.

Tweakie.

5409

Share Your GCode / Re: Free depth map and tutorials

« on: October 02, 2012, 11:51:58 AM »

Hi Pasquale,

Very interesting website, free stuff and tutorials, thank you for the link.

Tweakie.

5410

General Mach Discussion / Re: New people welcome !! Come in here and introduce your self!

« on: October 02, 2012, 11:35:05 AM »

Hi Guys,

Welcome to the forum.

Tweakie.