Author Topic: Weird shaped circles  (Read 2417 times)

Dcatlin7921

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Weird shaped circles
« on: June 17, 2016, 07:42:39 AM »
Please look at the attached pictures and let me know if you think this is software issue of hardware?

Thanks,

A5 2.5W
Running T2 registered.

All bugs have been squashed!

Working on enclosure, Custom electronics, Limit Switches, Cardboard Boat.

ChillyWilly1960

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Re: Weird shaped circles
« Reply #1 on: June 17, 2016, 11:57:51 AM »
If it was software related I think it would be more consistent. Looks to me like your axis is shifting during the print occasionally or maybe the motor cable is catching on something as it moves causing an occasional skip?

dindunuffin

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Re: Weird shaped circles
« Reply #2 on: June 17, 2016, 12:02:31 PM »
Possibly belt slipping? Check the belt tension?

ROSS

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Re: Weird shaped circles
« Reply #3 on: June 17, 2016, 12:03:16 PM »
Possibly belt slipping? Check the belt tension?

beat me to it by 10 secs!!
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Lasers are wonderful machines..not ONLY  can they cut a finger off BUT  they can also cauterise it at the same time.....

SAFETY -  IS NO ACCIDENT

Zax

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Re: Weird shaped circles
« Reply #4 on: June 17, 2016, 01:28:23 PM »
It isn't software related, it looks like your machine is drunk  ;D

I would check the slides are free moving and your belt tensions are correct.

You can always use he "View" feature, which is completely independent so will be a true representation of what is sent to your machine.

ROSS

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Re: Weird shaped circles
« Reply #5 on: June 18, 2016, 02:56:35 AM »
Conspiracy theorists would probably blame aliens.....
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Lasers are wonderful machines..not ONLY  can they cut a finger off BUT  they can also cauterise it at the same time.....

SAFETY -  IS NO ACCIDENT

sapling

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Re: Weird shaped circles
« Reply #6 on: June 18, 2016, 10:24:57 AM »
So you will notice two things about these machines that can make them do things like this.
1.) Yes belt needs to be tighter for sure
2.) The mount of the laser head you will notice when it is making frequent movement it bounces a bit because there is wiggle room there. I have been noticing it a lot and am currently working on a solution to prevent the wiggle room it currently has.

If your machine jumps which I notice it happens because of these issues the entire machine can shift pretty hard I have had the engraver move several inches mid engrave because of the belt and the mount.


dindunuffin

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Re: Weird shaped circles
« Reply #7 on: June 18, 2016, 11:14:41 AM »
My machine fit together nicely and the parts work well, its the user/operator that gives me the most trouble.

Cardmodeller

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Re: Weird shaped circles
« Reply #8 on: June 18, 2016, 12:15:43 PM »
I have the same problem, the user/operator of mine keeps thinking up ways to mod/improve/change it.

Cardmodeller
Darrel

ROSS

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Re: Weird shaped circles
« Reply #9 on: June 18, 2016, 12:31:01 PM »
So you will notice two things about these machines that can make them do things like this.
1.) Yes belt needs to be tighter for sure
2.) The mount of the laser head you will notice when it is making frequent movement it bounces a bit because there is wiggle room there. I have been noticing it a lot and am currently working on a solution to prevent the wiggle room it currently has.

If your machine jumps which I notice it happens because of these issues the entire machine can shift pretty hard I have had the engraver move several inches mid engrave because of the belt and the mount.


Yes,I npticed #2 as well.   Be certainly interested in your solution....
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Lasers are wonderful machines..not ONLY  can they cut a finger off BUT  they can also cauterise it at the same time.....

SAFETY -  IS NO ACCIDENT

Dcatlin7921

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Re: Weird shaped circles
« Reply #10 on: June 18, 2016, 05:15:14 PM »
Fixed

It was a loose belt. 

I loosened the belt earlier because my x axis was getting hung up in the center of the gantry  But that ended up being my roller mounting bolts too tight.  I forgot to tighten the belt up.

I snugged the belt up supper tight and moved the head around in a circle a few times using gcode.  I know timing belts tend to stretch when breaking in.  Works great now!!!
A5 2.5W
Running T2 registered.

All bugs have been squashed!

Working on enclosure, Custom electronics, Limit Switches, Cardboard Boat.

Zax

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Re: Weird shaped circles
« Reply #11 on: June 18, 2016, 05:25:52 PM »
Great job Dcatlin7921!