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Why does this radius not show up on my display?
« on: January 29, 2009, 11:39:09 AM »
N2420 G0X-2.2500Y-2.0000
N2430 G01 Y-2.1500
N2440 X-2.1207
N2450 X-2.0354 Y-2.0646
N2460 G02X-1.9646Y-2.1354Z-0.0080I0.0354J-0.0354
N2480 G01 X-2.0500 Y-2.2207

The radius on line 2460 doesn't show on my display.  It does cut properly.

Here's a similar bit of code that does show correctly.

n1 g0x.2929y1.7071
n2 g2x1.7071y.2929i.7071j-.7071

I'm using 3.036.

Thanks,
Walt

Offline ger21

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Re: Why does this radius not show up on my display?
« Reply #1 on: January 29, 2009, 01:33:46 PM »
Maybe because it's so small?
Gerry

2010 Screenset
http://www.thecncwoodworker.com/2010.html

JointCAM Dovetail and Box Joint software
http://www.g-forcecnc.com/jointcam.html
Re: Why does this radius not show up on my display?
« Reply #2 on: January 29, 2009, 02:46:53 PM »
Well, I do a lot of little stuff and this is the first time I've noticed this happening.
Here's more of the same program, only the radius that is tilted on a 45 has the problem.

N1980 G00 Z0.0800
N1990 X-2.8500 Y-1.8000
N2000 G01 Z-0.0080  F4.0
N2010 G17
N2020 G02X-2.8000Y-1.7500I0.0500J0.0000 F6.0
N2030 G01 X-2.7000
N2040 G02Y-1.8500I0.0000J-0.0500
N2050 G01 X-2.7500
N2060 Y-2.4500
N2070 X-1.8500
N2080 Y-2.3000
N2090 G02X-1.7500I0.0500J0.0000
N2100 G01 Y-2.4500
N2110 X-1.5500
N2120 Y-2.2000
N2130 G02X-1.4500I0.0500J0.0000
N2140 G01 Y-2.5000
N2150 G02X-1.5000Y-2.5500I-0.0500J0.0000
N2160 G01 X-2.9000
N2170 G02Y-2.4500I0.0000J0.0500
N2180 G01 X-2.8500
N2190 Y-1.6500
N2200 X-2.6054
N2210 Y-2.3000
N2220 G03X-2.5554Y-2.3500I0.0500J0.0000
N2230 G01 X-2.2000
N2240 G03Y-2.2500I0.0000J0.0500
N2250 G00 Z0.0800
N2260 X-2.8500 Y-2.1000
N2270 G01 Z-0.0080  F4.0
N2280 G02X-2.9500I-0.0500J0.0000 F6.0
N2290 G01 Y-1.6000
N2300 G02X-2.9000Y-1.5500I0.0500J0.0000
N2310 G01 X-1.5000
N2320 G02Y-1.6500I0.0000J-0.0500
N2330 G01 X-2.5054
N2340 Y-2.2500
N2350 X-2.4500
N2360 Y-2.1000
N2370 G02X-2.3500I0.0500J0.0000
N2380 G00 Z0.0800
N2390 X-2.3000 Y-1.8500
N2400 G01 Z-0.0080  F4.0
N2410 G02Y-1.9500I0.0000J-0.0500 F6.0
N2420 G01 X-2.4000
N2430 G02Y-1.8500I0.0000J0.0500
N2440 Y-1.7500I0.0000J0.0500
N2450 G01 X-2.2000
N2460 G02Y-1.8500I0.0000J-0.0500
N2470 G01 X-2.4000
N2480 G00 Z0.0800
N2490 X-1.7000 Y-1.6500
N2500 G01 Z-0.0080  F4.0
N2510 G03Y-1.7500I0.0000J-0.0500 F6.0
N2520 G01 X-1.5500
N2530 Y-1.9500
N2540 X-2.1000
N2550 G03Y-2.0500I0.0000J-0.0500
N2560 G01 X-1.5000
N2570 G03X-1.4500Y-2.0000I0.0000J0.0500
N2580 G01 Y-1.7000
N2590 G03X-1.5000Y-1.6500I-0.0500J0.0000
N2600 G00 Z0.0800
N2610 X-1.9000 Y-1.8500
N2620 G01 Z-0.0080  F4.0
N2630 G02Y-1.7500I0.0000J0.0500 F6.0
N2640 G01 X-1.7000
N2650 G02Y-1.8500I0.0000J-0.0500
N2660 G01 X-1.9000
N2670 X-2.0000
N2680 G03Y-1.9500I0.0000J-0.0500
N2690 G01 X-1.9000
N2700 G03Y-1.8500I0.0000J0.0500
N2710 G00 Z0.0800
N2720 X-2.3000 Y-1.9500
N2730 G01 Z-0.0080  F4.0
N2740 G02X-2.2500Y-2.0000I0.0000J-0.0500 F6.0
N2750 G01 Y-2.1500
N2760 X-2.1207
N2770 X-2.0354 Y-2.0646
N2780 G02X-1.9646Y-2.1354I0.0354J-0.0354
N2790 G01 X-2.0500 Y-2.2207
N2800 Y-2.4000
N2810 G02X-2.1500I-0.0500J0.0000
N2820 G01 Y-2.2500
N2830 X-2.3500
N2840 Y-2.0500
N2850 X-2.4000
N2860 G02Y-1.9500I0.0000J0.0500
N2870 G00 Z0.0800
N2880 X-2.8500 Y-2.3000
N2890 G01 Z-0.0080  F4.0
N2900 G03X-2.9500I-0.0500J0.0000 F6.0
N2910 X-2.8500I0.0500J0.0000
N2920 G00 Z0.0800
N2930 X-2.6500 Y-1.9000

N3080 M5 M9
N3090 G00 x0y0
N3100 M30

Cheers,
Walt

Offline jimpinder

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Re: Why does this radius not show up on my display?
« Reply #3 on: January 31, 2009, 06:03:27 AM »
You can magnify the display with the mouse. On mine you click the toolpath, and I use the wheel - perhaps this will show it up. If you look on the video tutorials it will show you how.
Not me driving the engine - I'm better looking.

Offline Hood

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Re: Why does this radius not show up on my display?
« Reply #4 on: January 31, 2009, 06:55:07 AM »
Just tried it here and the arc seems to show up fine.
Hood

vmax549

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Re: Why does this radius not show up on my display?
« Reply #5 on: January 31, 2009, 11:13:06 AM »
THere are some quirks in the old display code that on SOME PC videos it does not always draw thing s as they should. Brian is working on the NEW display code as we speak.

(;-) TP
Re: Why does this radius not show up on my display?
« Reply #6 on: January 31, 2009, 02:19:00 PM »
Hi Walt,

I get a similar thing, but this tends to be whole circles. For me its not a big problem as the machine cuts the part spot on.
Next time I'll have to look at the tool path as the machine is approaching the missing arc to see what happens with the following cross hairs.

Derek
You can "chop it off" but can't "chop it on"

Offline budman68

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Re: Why does this radius not show up on my display?
« Reply #7 on: January 31, 2009, 03:23:36 PM »
Just curious Walt, what type of video card do you have on your PC?

On board, possibly?

Thanks,
Dave
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Re: Why does this radius not show up on my display?
« Reply #8 on: March 02, 2009, 12:32:12 PM »
Turns out it is a display related problem.  The problem showed up on two of my computers so I assumed it was software.  I tried the code on my third computer and it show just fine.  "To assume is to blunder".

The problem computers are running a GeForce 8500 GT and a GeForce FX 5200.  This computer has a Quadro and shows it fine.

Hope this helps with the display code rewrite.

Regards,
Walt