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Messages - bwprice100

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31
Tangent Corner / Re: A Winter Project.
« on: October 25, 2011, 08:02:08 AM »
How using it to drive a high frequency spindle, maybe using CBN grinding wheel. Need high pressure collant at that speed though.

Brian

32
General Mach Discussion / Re: Missing lines of Gcode
« on: July 27, 2010, 01:59:51 PM »
I have run your code 4 times and its not skipped any lines, however there is something weird about your xml and I have not been able to find what it is so far.
What I am seeing is a delay between the G1 move in the Z ending and the G3 starting. I also seem to see a problem when jogging the X axis, it will jog and stop and then requires a further press to get it moving properly. Do you see that?

Might be worth your while making up a new xml and seeing how that goes.
Hood

Hi Hood

Sorry about the slow response but I have been in my sick bed all weekend :( so I am behind with my work. I should be able to have a closer look tomorrow but I do see the double press when jogging; I am using a wireless keyboard so I just put it down to a lost signal

How would I make up a new xml file?

Brian

33
.
hi Tweakie

If you google 'laser sintering cardiff university' you should find some interesting stuff.

They are quite keen to show of what they do, I have been there a couple of times myself.

Brian

34
General Mach Discussion / Re: Missing lines of Gcode
« on: July 23, 2010, 04:16:43 PM »
Hi Phil

Yes full code

xml file attached

Cheers Brian

35
General Mach Discussion / Re: Missing lines of Gcode
« on: July 23, 2010, 01:17:25 PM »
Hi Phil

Sorry its on my mill and i have the hex bar standing upright in the vice.

My command of Gcode is limited but what I can't understand is the randomness about this.

Are you saying it may be because the G17 code should not be there or should be at the start of the file.

Brian

36
General Mach Discussion / Missing lines of Gcode
« on: July 23, 2010, 10:48:39 AM »
.
I am having a strange proble with Mach 3 missing out lines of Gcode. i am using the following gcode to put a chamfer on the end of a hex bar but every now and again complete lines of code are just missed out. It is not always the same lines but as soon as I go to the MDI window the axis move no problem. For example it will sometimes miss out line 8 and sometimes line 6

Any thoughts much appreciated

Brian


1 G00 Z6
2 G00 X15.5 Y25
3 G00 X15.5 Y0
4 G01 Z0 F30
5 G01 Z-1 F10
6 G17 G03 X15.5 Y0 I-15.5 J0 F35
7 G00 Z6
8 G00 X15.5 Y25
9 M30

37
General Mach Discussion / Re: True 4 axis milling
« on: July 21, 2010, 02:58:17 AM »
To do what you want to do it takes 5 axis not 4 (;-)

4th axis work is basically 3 axis WORK as IF you move the spindle OFFcenterline of the rotary then your cutting is offset from the rotary axis  and difficult to do and mostly NOT neccesary as you will get the same results from just the 3

Just a thought,(;-)



My rotary 4th axis will be mounted at 90deg to the XY plane and its axis is in line with the X axis. With Meshcam it can only really be used as a convenient way of orientating the stock and as far as I can tell will not move whilst cutting.

38
General Mach Discussion / Re: True 4 axis milling
« on: July 21, 2010, 02:53:36 AM »
you can take a look at this freeware called - cnc toolkit - .it is a pain to sign up for but it is free.
might be what you need to get going.they work on it all the time.

bill

Thanks for that Bill, I will look into this.

brian

39
G-Code, CAD, and CAM discussions / Re: Gcode pause
« on: July 20, 2010, 02:27:53 PM »
Hi All

I ahve done some experimenting and it am sure it is the backlash setting in each axis. The simulation on my laptop, even though it is suing the same xml file it seems to ignores the setting for the backlash.

Thanks for all the input

Brian

40
Show"N"Tell ( Your Machines) / Re: The Laser Project.
« on: July 20, 2010, 08:08:00 AM »
You certainly know how to boost a guy's confidence Brian.  ;D

Tweakie.
Your welcome

By the way great project

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