just another plasma build and then some :)

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03 Jun 2020 09:58 #169930 by machinedude
i was thinking after the fact that something thicker like wax or paste would probably work better. i still have sections to take off yet i might try a heat gun to see if that might help? something to try anyways won't hurt anything.

i just finished it up this past weekend and only started to rip things apart and am only about half way done with that part. the E.G. is hard to i really nice finish with unless the mix is pretty wet but with the cost of epoxy you are trying to keep things cost effective. well at least as much as possible anyways.

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07 Jun 2020 12:55 #170473 by machinedude
started to make things look pretty on the frame and quickly came to the conclusion that sanding by hand sucks on something this big to prep for painting. so i had to order some supplies for the DA sander i have so i can save my arms :)

i went ahead and got the 7i97 board as well so more money out the window on this project :) this thing is turning into a money pit :) i will probably pick up a 5V power supply for this thing soon as well since i don't have one on hand. i have just about everything else since i built the servo controller a while back.

now that summer is here grass cutting and everything else is cutting into built time. i felt like i was going slow before now it's even worse :)

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07 Jun 2020 13:24 #170477 by machinedude
i had another thought. since i am swapping out the steppers for servo's this Z axis is probably going to be pretty scary in terms of speed. i was getting 400 IMP with a direct drive with a stepper. so with the same set up if i run 240V on the servo's i should be around 3 times faster. with such a short axis that's going to work the pucker switch 3 times harder :) i think i might end up looking for more suitable coupling solutions as a result.

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17 Oct 2020 03:02 #186341 by machinedude
time to get back to this project. i am waiting on about 650 LBS of aluminum for my table top so i figured i would go scope out were i was and decided to clean up for a few hours today and regroup a little bit. it's amazing how bad i can destroy my work space is a short time :)

i had some issues with the E.G. casting sagging around the ball screw. but after i cast the frame i could no longer get under the frame to get in there to grind the problem area's so i had to jack up the entire machine so i could get to where i needed to be to fix things. the diamond concrete grinding discs work pretty well for cleaning up E.G. but they dust they make gets everywhere :)

i think i might have burnt myself out on this build but have the urge to get back at it again :)

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