Messages

8161

Share Your GCode / Re: G code needed

« on: March 05, 2010, 12:03:43 PM »

Great stuff Robert.

Here is another one for you.

Some interesting Logo’s can be found at ‘Brands of the World’ http://www.brandsoftheworld.com/ and when converted to grayscale the Mach1Filter.exe program, which can be found here http://www.machsupport.com/forum/index.php/topic,6544.0.html makes for an interesting height / depth map for engraving, if you get it right.

Tweakie.

8162

Show"N"Tell ( What you have made with your CNC machine.) / Re: Gertrude Gets Some!

« on: March 05, 2010, 07:36:53 AM »

Still you have to look at it this way - the cutters from China are cheapy cheapy and the more you break the more mouths you feed. Its called doing your small bit for the emerging nations. 

Tweakie.

8163

Share Your GCode / Re: G code needed

« on: March 04, 2010, 02:33:58 AM »

Hi Robert,

Try using a different file name for your picture upload (a name that has not been used already on the forum) then it should work.

I am from the UK.

Tweakie.

8164

Share Your GCode / Re: NC file for 4 axes machine

« on: March 02, 2010, 08:50:20 AM »

High Tech Key,

I generated this demonstration toolpath from an .stl file with DeskProto.
It is not a very practical model because the stepover is too great, it was just done to show you the toolpath.
Hope this helps.

Tweakie.

8165

Show"N"Tell ( What you have made with your CNC machine.) / Re: compressed air engine

« on: March 02, 2010, 02:23:20 AM »

Looks real good. Any chance of a picture of the inside parts ?.

Tweakie.

8166

General Mach Discussion / Re: Auto Tool Zero - Plate Thickness DRO(1151)?

« on: February 28, 2010, 04:24:55 AM »

You could also consider changing the 'PlateThickness = GetUserDRO(1151)' to 'PlateThickness = 10' or whatever your plate thickness is.

Tweakie.

8167

Show"N"Tell ( What you have made with your CNC machine.) / Re: compressed air engine

« on: February 27, 2010, 03:38:27 AM »

I just love little engines and that is a beauty. Can't wait to see the next one.

Tweakie.

8168

Share Your GCode / Re: G code needed

« on: February 27, 2010, 02:54:00 AM »

Nothing wrong with self made machines Robert. 

Looks like you have rounded the tops of the letters which would suggest that your motor tuning settings need adjustment. Try increasing the acceleration and reducing the velocity (small adjustments each time and try the result). Reducing the overall feedrate may help. The problem would be sorted by operating in 'exact stop' mode (general config - select exact stop as opposed to constant velocity) but this would slow the progress of the overall work quite considerably.

Something else you may be interested in is this online utility for scaling GCode. http://www.eng-serve.com/cnc/gcode_scale.html
(By scaling 25.4 it will convert mm to inch).

I think we probably all learn by tweaking everything until it can be tweaked no more. 

Tweakie.

btw. Good work on the HD logo, it's early days yet.

8169

Share Your GCode / Re: G code needed

« on: February 26, 2010, 12:24:28 PM »

Hi Robert,

Next to the DRO for each axis is it's 'Scale DRO'.
They are currently all set to 1.0000 - clicking on one highlights it, typing in 0.5 and pressing return then makes that axis 1/2 size, (0.25 = 1/4 size) etc.
Clicking on 'Toolpath' screen button and then 'Regen Toolpath' button will show the new dimensions in the 'Program Limits' box, change screen back to 'Program Run' screen and readjust scales as necessary.
You will be an expert before you know it 

Tweakie.

8170

Share Your GCode / Re: G code needed

« on: February 26, 2010, 02:22:43 AM »

Hi Robert,

Ahh the quirks of LCam and the way the toolpaths are created. It would need a bit of work to optimize.
In the meantime try this GCode - scale it to your requirements using the DRO Scales as it is again in mm.

Tweakie.