Z axis got loose!

This topic contains 20 replies, has 8 voices, and was last updated by  Omri 6 days, 12 hours ago.

Viewing 21 posts - 1 through 21 (of 21 total)
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    Posts
  • #40314

    Omri
    Participant

    Hey guy it’s me again, machine was working beautifully lately, today I left it drawing and suddenly noticed z axis dropped, it seems the top blue part is not attached rwell or so, it can still run up and down by the motor.

    But, when I put Sligh pressure even from the bottom, the whole z axis moves up so something got loose for sure.

     

    Any idea how to fix this issue?

     

    #40322

    buurin
    Participant

    Check the locknut. It could be loose or broken letting the coupling nut and the allthread to slide up and down.

    #40323

    Omri
    Participant

    Hey! Thanks for the fast reply, do you refer to the 3 bolts on the blue thing itself?

     

    #40325

    buurin
    Participant

    On the middle assembly where a coupling nut goes.

     

    Of course the pineapple itself shouldn’t be loose either. Do you see the blue pineapple move when you push from bottom?

    #40326

    Omri
    Participant

    I think I figure it out, it’s connected well to the rod going down, so the one with a spiral texture on it. But it got disconnected from the rod going out of the motor(smooth looking rod)

    Still not sure what’s the fix

    #40340

    Barry
    Participant

    Either a little tighter on the upper screw closest to the stepper, or if you think you might break it, a little superglue. If the coupler ever breaks the plastic can be scraped off the stepper shaft without hurting it. Also, once you have it back in place, run the black plate that’s under it right up against it(go up). That way the bearing takes the weight, not just a piece of hanging plastic.

    Look at mine for an example.
    https://goo.gl/photos/eSUJdtn3ruR9NKzo7

    #40341

    Omri
    Participant

    Hey Brrry!

    Thanks a lot, super glue worked like magic for now, finished my 4 color pen drawing ๐Ÿ˜€

     

    I hope it will be strong enough for drilling later on too, otherwise I’ll come back to figure out what piece I have to replace

     

    #40355

    Jeffeb3
    Participant
    Also, once you have it back in place, run the black plate thatโ€™s under it right up against it(go up). That way the bearing takes the weight, not just a piece of hanging plastic.

    Don’t forget that step.

    #40369

    Ryan
    Keymaster

    4 color pen drawing!!! What is that.

    #40370

    Ryan
    Keymaster

    It looks like you might have tried to lube all your bearings, for the most part you should consider them sealed and not able to be lubed. Some lubes do not interact well with PLA plastic, your parts could start to degrade. The coupler issue could be from that. All that lube is just going to make milling debris stick to your machine.

    #40375

    Omri
    Participant

    Hey Ryan !

    its basically using 4 different pens, normal 2 cent pens from the office shop, and use them to make a full color drawing like that one.

    about the lube, as those drawings take ages, at night I heared horrible squeaking noise coming from the Z axis, it was 2 AM and i wasnt very careful with my aiming. the noise did stop at least and i cleand up the mess later on.

    so far so good

    #40377

    Ryan
    Keymaster

    Awesome, I added that to the gallery, keep it up!

    #40378

    Johnny
    Participant

    Omri, I have no idea how you accomplished that drawing but it is incredible. As a classic car guy it is even more amazing.

    #40394

    Benoit Paillard
    Participant

    Yes same here ! I’d be very much keen to know how you generated that gcode !

    #40522

    Vincent Pollaro
    Participant

    I’ll add my agreement – That is pretty darn cool. Any details on how you did it would be appreciated!

    #40873

    Omri
    Participant

    Hey guys ! happy you all like it ๐Ÿ˜€

    its actually pretty complex, involves 4 different programs and allot of patience,

    took me over 7 month of non stop machine drawing at least 4 days per week.

     

    maybe ill make a tutorial later on when i reach more crazy results and this becomes more normal for me ๐Ÿ™‚

    3 users thanked author for this post.
    #40907

    Jeffeb3
    Participant
    #40924

    Benoit Paillard
    Participant
    Hey guys ! happy you all like it ๐Ÿ˜€ its actually pretty complex, involves 4 different programs and allot of patience, took me over 7 month of non stop machine drawing at least 4 days per week. maybe ill make a tutorial later on when i reach more crazy results and this becomes more normal for me ๐Ÿ™‚

    Whaaaat ???

    #40940

    Omri
    Participant

     

    And Jeffeb3, I’m not really selling organized yet, just sold few pieces and some were used as an album cover by an Irish band ๐Ÿ˜€

     

    At the moment busy trying ti apply for art funding so I can push it all a bit further and make a more serious series of drswing or even paintings if I can solve some – brush going to dip in paint every few strokes – problems

    #40944

    Barry
    Participant
    brush going to dip in paint every few strokes โ€“ problems

    https://www.consumercrafts.com/store/details/catalog/kids-art-paint-and-brushes/bs54-6201

     

    I used to have something similar, they actually work pretty well.

    #43745

    Omri
    Participant

    Hey Berry !

    brush pens are indeed super nice, ive been trying to work with them with the principal of a V-bit method, since they do have somwhat the same shape, but i found brushes are very hard to control. they are only fun in more free style ๐Ÿ˜€

    # painting #tryouts #omg๐Ÿ˜ฑ

    A post shared by Om (@omrbig) on <time style=” font-family:Arial,sans-serif; font-size:14px; line-height:17px;” datetime=”2016-11-10T20:21:10+00:00″>Nov 10, 2016 at 12:21pm PST</time>

    <script async defer src=”//platform.instagram.com/en_US/embeds.js”></script>

    this was done using acrylic paint and a brush

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