Author Topic: Feature Requests  (Read 10985 times)

korikmate

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Re: Feature Requests
« Reply #30 on: September 04, 2016, 12:59:13 AM »
Thank you Zax! I will give it a try. You mentioned that "without any problem". What can be a problem if the laser is not setted up well, or the speed is too high?

korikmate

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Re: Feature Requests
« Reply #31 on: September 04, 2016, 02:37:52 AM »
Another question: the x max x min problem is gone but why ia that the ear of the dog is darker than its face (picture)? The moving of the laser were horisontal.

Thank you!

Zax

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Re: Feature Requests
« Reply #32 on: September 04, 2016, 04:38:28 AM »
It's physics, Newton's first law that covers motion and inertia.

Increasing acceleration puts more stress on the machine when it changes direction, the mass wants to continue but the motors want to go the other way. This results in the belts stretching as they take more load, causing backlash where the head is behind it's desired position. You can get zig-zag patterns appearing or perhaps issues at the leading edge before the head catches up.

Having your machine setup correctly, with low friction and good belt tension will help a lot.

So for the dog, I'm not sure. When you say horizontal do you mean as the image is uploaded or perhaps it's rotated and you mean it was scanning vertically the way it's uploaded?

It could be material related or it more likely it's the laser heating up.

Elmojo

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Re: Feature Requests
« Reply #33 on: November 27, 2016, 05:56:23 PM »
I have a feature request.
Can we have an option to leave the fan on for XX time after a job completes to help cool the laser?
My 3D printer has a similar feature, and it's helpful.

beikeland

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Re: Feature Requests
« Reply #34 on: November 27, 2016, 07:33:08 PM »
With the default board its not possible to have  the fan on without the laser also being on. Otherwise good idea I gusess, most advanced users will probably make a move towards proper ttl control.

ggallant571

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Re: Feature Requests
« Reply #35 on: November 27, 2016, 08:02:09 PM »
Don't start calling me "Advanced".
SARCASM - Just one more service we offer here.

Lob0426

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Re: Feature Requests
« Reply #36 on: November 27, 2016, 08:07:33 PM »
@ggallant571;
He meant your "Advanced" knowledge, Not your age!!!
Richard
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ggallant571

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Re: Feature Requests
« Reply #37 on: November 27, 2016, 08:18:47 PM »
I was getting worried because I am switching to ttl and am still a novice.
SARCASM - Just one more service we offer here.

Lob0426

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Re: Feature Requests
« Reply #38 on: November 27, 2016, 10:33:41 PM »
With age comes wisdom,,,,
If you get any older we won't be able to understand you anymore!!!
Richard
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Zax

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Re: Feature Requests
« Reply #39 on: November 28, 2016, 04:42:49 AM »
As already mentioned, the fan is coupled to the laser so the only way is leaving the laser on at say power 1. Which isn't really a good idea.

beikeland

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Re: Feature Requests
« Reply #40 on: November 28, 2016, 06:16:21 AM »
Don't start calling me "Advanced".
I'm sorry, i suffer from premature articulation. The was no offence intended

jtice

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Re: Feature Requests
« Reply #41 on: November 28, 2016, 07:34:45 AM »
I wired mine up differently,, I cut the wires to the fan and have it running off the 12V output on the board, so it runs all the time.
I also upgraded the fan, this keeps the laser nice and cool, and does a fairly good job of blowing the smoke clear also.
I also installed a second fan to really clear away the smoke, it has an on/off switch.

I didnt like the idea of the fan only running alittle bit as the laser was activated.

beikeland

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Re: Feature Requests
« Reply #42 on: November 28, 2016, 08:06:38 AM »
I'll be doing something like that when I finally get my replacement laser from bangood. Probably hook up some more mosfets to enable control via g codes for coolant etc. Seems regular Arduino sized cnc shields work as expected, but not Nano sized cnc shields - so getting closer to making this thing usefull