1 Topic by Ski52

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Topic: What have I done now?

Haven't really turned on the printer for 6 - 7 months, honey-do list too long ( still come here 2 - 3 times a day).  Tried today to print a few trinkets to adorn some Christmas packages.  Months ago, I needed a razor blade and a small hammer to get the prints off the glass, both PLA & ABS - not now.  They peel up like the first time I used the printer. 
I did notice one thing, and that is most likely my problem.  My Aqua Net is almost empty, that's Ok, but it it near 3 years old.  When I pulled the failed print off, the small part that did stick brought most of the hair spray with it, in like a sheet - sticky too.  Never heard of hair spray going sour, but never had a can for 3 years.  Tomorrow I will re-check all calibrations, & re-level the deck - AFTER I get a new can of Aqua Net.  Other than that, what could go wrong with the machine sitting untouched for a period of time? 

Thanx for any help
Ski

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2 Reply by wardjr

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Re: What have I done now?

Clean your glass with Acetone first.  Then buff clean with dry paper cloth because it'll still be dirty.  Then re apply a few dust coats of hair spray letting them dry in between applications.  I've had this before and my conclusion was that a fine layer of dust stuck to the hairspray previously on the bed preventing the new coating from actually contacting the glass.  Mine peeled just like you described and my spray was new so I'm doubtful it's an age thing.

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3 Reply by heartless

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Re: What have I done now?

yup.. dust is the enemy. might want to clean and oil the smooth rods, too. wink

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4 Reply by Tin Falcon

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Re: What have I done now?

Hmm After reading this me thinks it is time to clean the glass bed once very Year ?????

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5 Reply by Ski52

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Re: What have I done now?

Just got back from watching Rogue Warrior - good flick!  I will try the suggestions in the morning when I can keep both eyes open...

Thanx
Ski

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6 Reply by pirvan

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Re: What have I done now?

Ski52 wrote:

Just got back from watching Rogue Warrior - good flick!  I will try the suggestions in the morning when I can keep both eyes open...

Thanx
Ski

You mean Rogue One.

I got a neat idea for you next print: Grand Moff Tarkin

https://i.ytimg.com/vi/U2Tu1FLvs_4/hqdefault.jpg

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...and too much time on my hands.

7 Reply by Ski52

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Re: What have I done now?

Pirvan - you're right!  Rogue One.  Still was a good flick - no spoilers from me.....

Cleaning the glass with a multitude of agents - now works fine.  Also lubed all the rods.

http://soliforum.com/i/?XLHgjOd.jpg

Before

http://soliforum.com/i/?XihihEk.jpg

wish I could control that fanning action... could make propellers!   The middle object is the good one, still not 100%, but a Lot closer.

http://soliforum.com/i/?5FVbBmF.jpg

During the print - a little lift, but negligible.

http://soliforum.com/i/?wwtTNnA.jpg

The final little project.  I will cut the 'ribbons' to fit the top of the box.

Thanx for the help....
Ski

Ender 3 Pro

8 Reply by carl_m1968

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Re: What have I done now?

Ski52 wrote:

Pirvan - you're right!  Rogue One.  Still was a good flick - no spoilers from me.....

Cleaning the glass with a multitude of agents - now works fine.  Also lubed all the rods.

http://soliforum.com/i/?XLHgjOd.jpg

Before

http://soliforum.com/i/?XihihEk.jpg

wish I could control that fanning action... could make propellers!   The middle object is the good one, still not 100%, but a Lot closer.

http://soliforum.com/i/?5FVbBmF.jpg

During the print - a little lift, but negligible.

http://soliforum.com/i/?wwtTNnA.jpg

The final little project.  I will cut the 'ribbons' to fit the top of the box.

Thanx for the help....
Ski

The fanning action could be caused by a motor or driver getting too hot, a bad cable to a motor or a bad cable to an endstop. Because it is a fanning action it is happening on both x and y axis so it is also possible you may be running too fast and the motors are over stepping. They don't have enough torque to stop and change direction so they are over shooting on each layer and pass.

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9 Reply by Ski52

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Re: What have I done now?

Carl - you may be somewhat right.  I do run the printspeed a 130% & standard flow rate.  Each of the motors has a cooling fan mounted to it, and 2 on the PC board.  Cooling should not be an issue, but age.... is another thing - the machine is 3 years old today!  The heatbed, extruder & PS have been upgraded, but the mechanics are original.  This summer, I plan on turning my SD2 into an aluminum open framed SD3 - I hope.  All this is moot as the problem seems to have been solved with a little cleaning.   The fanning action looks so consistent....?

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