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Messages - Tweakie.CNC

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2261
General Mach Discussion / Re: 3d scanning with mach3
« on: January 17, 2018, 05:09:50 AM »
Laser scanners were discussed some years back but the early prototypes never really worked that well and were, I think, just discontinued.
Mechanical probing, especially with 200mm travel and to a 0.5mm tolerance, using the Mach3 Digitize Wizard will work OK but it is such a slow process (typically an overnight job).

Tweakie.

2262
Share Your GCode / Re: "Manners... Maketh... Man..."
« on: January 17, 2018, 04:28:07 AM »
Excellent workmanship and once again, thanks for sharing.

Tweakie.

2263
General Mach Discussion / Re: 4th A axis irradical behaviour
« on: January 17, 2018, 03:43:19 AM »
I have never seen this happen but there are some odd things occur with version .066
Try installing version .062 (over the top of your existing version) and see if that cures the problem ftp://anonymous:guest@ftp.machsupport.com/Mach3/Mach3Version3.043.062.exe
Make a backup of your Mach3 folder first (just in case you need to revert).

Tweakie.

2264
Mach4 General Discussion / Re: Is Mach4 really Hobby Material?
« on: January 17, 2018, 01:50:21 AM »
Quote
It strikes me that if half (this is my wild guess) of people who try Mach4 who don't carry on with it then is Mach4 really a hobby product?

There have been quite a few long established Mach3 users (and notable forum contributors) who have tried Mach4, not carried on with it, and then moved to using an entirely different software.

Tweakie.

2265
Share Your GCode / Re: Free DXF and Gcode files.
« on: January 17, 2018, 01:30:46 AM »
 :)

Tweakie.

2266
Tangent Corner / Re: Pyrography.
« on: January 15, 2018, 10:52:47 AM »
Hi Jose,

Quote
One question, do you use the method of varying the feedrate also with the laser?

For my laser power control I use constant feed-rate and variable PWM.

Tweakie.

2267
Tangent Corner / Re: Pyrography.
« on: January 15, 2018, 01:59:54 AM »
Hi,

Sorry but I can't provide much help - I tried hot wire pyrography but did not have any real success with it so went back to laser use.
All I can suggest is that you read through the HobbyCncArt topic, following any links given, and see if it better explains the technique. http://hobbycncart.com/forum/46-234-1

Tweakie.

2268
Mach3 and G-Rex / Re: Keyboard keys
« on: January 15, 2018, 01:45:49 AM »
Excellent, I am pleased the problem is resolved.

Tweakie.

2269
Show"N"Tell ( Your Machines) / Re: The Laser Project.
« on: January 14, 2018, 08:45:33 AM »
Hi Dan,

If it helps...
I know nothing about wood but as a comparison, the image in post #1001 is on plywood which was purchased as Birch Ply and the image in post #1003 in on what Ger21 suspects is Beech.

Tweakie.

2270
Show"N"Tell ( Your Machines) / Re: The Laser Project.
« on: January 14, 2018, 08:32:42 AM »
Hi Dan,

I don't really know if hard woods perform better or not, certainly a lack of the hard growth rings (often found in pine) is preferable. I think you just have to try different woods and see.

Just thinking out loud...
The original Mach3 plugin was only able to provide a maximum 50% pulse duty cycle so lower powered lasers could struggle to achieve the best results. Auggie has adjustable PWM pulse duty cycle (0% to 100%) so I am confident that good results could be achieved with as small as a 150 mW diode laser (although feed-rate may be painfully slow).

As we have already said Auggie is free software but it requires the 57CNC which incidentally is also an excellent motion controller for use with Mach4.

Tweakie.


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