i was happily cuttin away of the phlatty....after i heard the cycle was complete i went to take the cut sheet out.......man it was like omg what the heck took place??? the thing looked as it Freddie Kruger took his finger nails all over the foam....i couldn't even recognize what i was cuttin...i chucked it up to maybe a bug in the program, or something i did wrong making the program and remade it. stuck a piece of test foam, this time watchin it run....started to do all kinds of crazy cuts.....man i was like what the heck....took out foam and dry run the program....the x-axis roller would stop and go....ahhh the pully come loose somehow. i didn't make a access hole for the x axis, just the y. to fix rite, the rods had to come out with the adjusters, control board removed, end taken off, to take out motor to slam a drill point for the set-screw and fix rite...so i just dripped some loctite, and retightened the set-screw, hopefully it will hang now...this is to anyone building a phlatprinter make sure you install them pulleys good, sink a drill point, even if ther is a flat on the stepper motor shaft, mark thru the hole, and take your dremel and grind a lil dimple the ensure that baby cant slip like mine did. as of now this is my first, and hopefully last mechanical problem. randy.

 

yea Dennis the x-axis was the only one i didn't cram a drill point into....i supposed i was to focused on the screw drives...that the monkey in me.....

 

actaline, I am not aware of any such pulley but we just recently started to replace the standard grub screw with a socket cap screw that includes a nylon patch to help prevent loosening. It works really well. We would be happy to send you one if you would like. They are very small and would fit in a standard envelope. Please let us know if you are interested and pm us your current address.

Thanks,

Mark and Trish