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wobbly x-axis

Posted: Mon Jul 01, 2013 2:28 am
by borg
Hi!

Our x-axis seems to be a bit wobbly, see here:
Image

The lines in the image should be perfectly parallel to each other. The image is zoomed in quite a bit, the distance between the lines is 3mm.

If we do the same pattern with the lines beeing parallel to the y-axis, the lines look perfectly parallal at this zoom-level.

There is no loss of steps or similar, we can cut a big object and the start and end point is the same again. It must be some kind of slackness somewhere on the x-axis. We already completely dismantled the pulley and cleaned the guide wheels and so on. I am at a loss what the problem could be.

IMO it can't be unevenness of the x-axis itself, if that would be the case the wobblyness of the lines whould be parallel to each other.

Does anyone have an idea what could be going on?

Re: wobbly x-axis

Posted: Mon Jul 01, 2013 7:31 am
by twosoc
Hey probably not applicable to this, but I recently had a wobbly problem too, it turns out the lens wasn't being held snugly by the holder and was giving me a woble on the x axis, I guess the y runs more smoothly. I lasered a card ring for it to sit in and it stopped it nicely. although it looks like your cutting ali or similar, which I'd hope your machine was a lot better engineered than my little 40 watter. :)