The problem appears to be a small amount of flex in the linear rods. I used 8mm rods thinking that the stresses wouldn't very much when used as a drag engraver. I will probably up size the rods to 12mm in the final design version. The 8mm rods would probably be fine for laser engraving.
On Friday, August 18, 2017 at 3:13:04 AM UTC-7, Frederic RIBLE wrote: > > Could you post a picture showing the issue ? > You can try with a small hand written GCODE file engraving basic shapes > (circles). > Backlash, if any, should be visible as geometric distortion when the > direction of the motion is changing. > > Frederic > http://cnc.f1oat.org > On 2017-08-18 01:14, 'Harley Engholm' via Machinekit wrote: > > Have worked with the backlash parameter and have observed no differences > in the engravings. Thanks for the info and I will keep playing with the > machine to see if there is > a solution. > > On Tuesday, August 15, 2017 at 5:38:04 PM UTC-7, Harley Engholm wrote: >> >> I am using Vectric Cut2d for my designs and have been using EMC2 post >> processors for the g code creation. Everything works except that the >> text on engravings are somewhat distorted, ie a straight line on the >> bottom of an "L" is curved. Also circles are not complete, there is a very >> small opening at the ends. All of the distortions seem to be the identical >> when repeating an engraved word, so it seems that it may be more of a code >> issue than a mechanical issue. I am wondering if anyone else has had this >> problem and if there is a dedicated post processor for machinekit running >> on a BBB. >> >> Harley >> > -- > website: http://www.machinekit.io blog: http://blog.machinekit.io github: > https://github.com/machinekit > --- > You received this message because you are subscribed to the Google Groups > "Machinekit" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected] <javascript:>. > Visit this group at https://groups.google.com/group/machinekit. > For more options, visit https://groups.google.com/d/optout. > > > -- website: http://www.machinekit.io blog: http://blog.machinekit.io github: https://github.com/machinekit --- You received this message because you are subscribed to the Google Groups "Machinekit" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. Visit this group at https://groups.google.com/group/machinekit. For more options, visit https://groups.google.com/d/optout.
