Please help new guy...

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rocket2004
Posts: 37
Joined: Sun Mar 13, 2016 7:22 pm

Please help new guy...

Post by rocket2004 » Sat Mar 26, 2016 5:58 pm

So this morning I ran my first test cutting of a gear I made in Gearotic,
then sent it to MeshCam in .dxf format. Then to Carbide Motion to cut.

It ran perfectly until it got down to about 75% done, then suddenly the feed rate
sped up all by itself and the spindle started to go nuts....out of control.

The gear was partially destroyed by the last few seconds before I shut it down....

Any ideas on why this would happen???

RR

AnonymousPerson
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Location: 3753 Cruithne

Re: Please help new guy...

Post by AnonymousPerson » Sat Mar 26, 2016 6:03 pm

Ouch, that doesn't sound good.

As a thought to rule out electrical weirdness, you could try running it again a few cm's in the air (not cutting anything). If the behaviour repeats itself, it's definitely something in the generated file, not an electrical thing.
Shapeoko 3 #516

rocket2004
Posts: 37
Joined: Sun Mar 13, 2016 7:22 pm

Re: Please help new guy...

Post by rocket2004 » Sat Mar 26, 2016 7:02 pm

Good idea.........except I would have to sit and watch it for 2.5 hours....

Thanks...

onekk
Posts: 29
Joined: Thu Dec 18, 2014 2:29 pm

Re: Please help new guy...

Post by onekk » Sat Mar 26, 2016 9:12 pm

Run the g code file into an emulator and see what happens. Or inspect the gcode, maybe it's some unsupported command tgat reset some motion comand to a rapid or set the feed rate wrongly.

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WillAdams
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Location: Pennsylvania --- south of the Turnpike, East of US-15
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Re: Please help new guy...

Post by WillAdams » Sat Mar 26, 2016 11:04 pm

Always preview / simulate.

For the tool path, it may be too many decimal points: http://www.shapeoko.com/wiki/index.php/ ... m_Expected
Shapeoko 3XL #0006 w/ Carbide Compact Router w/0.125″ and ¼″ Carbide 3D precision collets

rocket2004
Posts: 37
Joined: Sun Mar 13, 2016 7:22 pm

Re: Please help new guy...

Post by rocket2004 » Sun Mar 27, 2016 7:00 am

Will,

I use Carbide Motion, there is no way to simulate anything.

Any ideas on a replacement for Carbide Motion?

RR

WillAdams
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Re: Please help new guy...

Post by WillAdams » Sun Mar 27, 2016 10:11 am

I’d thought that some sort of preview had been added in a recent update.

Please see: http://www.shapeoko.com/wiki/index.php/Software and the linked pages.

I use:

- Inkscape (and Macromedia Freehand and FontForge) for CAD
- MakerCAM and F-Engrave for CAM
- SCITE (a text editor) to reduce the number of decimals using a RegExp
- NCPlot (last free version) for editing and previewing G-code --- I should try NC-Corrector which is free
- bCNC for comm / control and previewing

Carbide Create and Carbide Motion worked fine (aside from a too-low feed rate) the one time I used them, and I’ve been meaning to do more w/ them, but have been busy.
Shapeoko 3XL #0006 w/ Carbide Compact Router w/0.125″ and ¼″ Carbide 3D precision collets

DRobs86
Posts: 148
Joined: Fri Jun 05, 2015 4:19 am

Re: Please help new guy...

Post by DRobs86 » Sun Mar 27, 2016 11:23 pm

rocket2004 wrote:Good idea.........except I would have to sit and watch it for 2.5 hours....

Thanks...
How large is this gear? 2.5 hours is a long runtime.

rocket2004
Posts: 37
Joined: Sun Mar 13, 2016 7:22 pm

Re: Please help new guy...

Post by rocket2004 » Mon Mar 28, 2016 7:52 am

8 inches..............in diameter.

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