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Topic: SD3 large part not sticking on bed anymore!

I have the SD3 and for a long time parts (regardless of their size) stuck really well to the heated bed; I also used hair spray to help with the adhesion.

Recently I updated the firmware of Slic3r and everything went berserk! Anyway, now the axis are calibrated and the printer prints in the middle but large objects (larger than 2"x2") peel off from the corner which ruins the whole print. Basically larger parts are warping and not sticking. And nothing can make them stick: no amount of hair spray, brim, raft, and no amount of waiting time for the bed to be "really" hot!

What's going on? How can I fix this problem? Why did the prints stick well in the previous very old firmware but now nothing sticks? Is it the fan? Can anyone help me please?

Thanks!

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Re: SD3 large part not sticking on bed anymore!

Time to clean the bed . Several folks here have had this issue.
I am not sure i the hair spray loses it stickiness sitting or it may collect dust or stearates aka lube from the plastic. I doubt if it has anything to do with the firmware and you are not going crazy.
I had a similar issue worked fine for almost a year then could not get things to stick and I did not change my firmware in any way!!!
so clean the bed with windex or Isopropyl alcohol and re treat with hair spray.
Happy printing
tin

Soliddoodle 4 stock w glass bed------Folger Tech Prusa 2020 upgraded to and titan /aero extruder mirror bed
FT5 with titan/ E3D Aero------MP mini select w glass bed
MP Utimate maker pro-W bondtech extruder
Marlin/Repetier Host/ Slic3r and Cura

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Re: SD3 large part not sticking on bed anymore!

I tried that. Didn't work. I cleaned and scrubbed the glass. I applied the hair spray, heated the bed, waited few minutes so everything is nice and warm but it didn't stick.

I calibrated the Z-axis by moving the bed a bit up or down. Didn't work. It just won't stick!

It's worth noting that it's a new ABS spool and it's white ABS. May be the ABS is different in this patch?

How can I make it work? Please help me!

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Re: SD3 large part not sticking on bed anymore!

Start by describing what a single line on the first layer looks like.  Better yet get us a picture of just a single line, single perimeter skirt (a square) that cover a bigger portion of your bed.  If that line doesn't resemble a nice flat ribbon stuck nicely to your bed than your nozzle isn't close enough to the bed.  If nothing comes out at all then your nozzle is too close to the bed.

Printit Industries Model 8.10 fully enclosed CoreXY, Chamber heat
3-SD3's & a Workbench all fully enclosed, RH-Slic3r Win7pro, E3D V6, Volcano & Cyclops Hot End
SSR/500W AC Heated Glass Bed, Linear bearings on SS rods. Direct Drive Y-axis, BulldogXL
Thanks to all for your contributions

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Re: SD3 large part not sticking on bed anymore!

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Re: SD3 large part not sticking on bed anymore!

not quite close enough to the bed... need to squish that first layer down a little bit more

SD4 #1 & #2 - Lawsy carriages, E3D v6, Rumba controller board, mirror bed plate, X motor fan, upgraded PSU & Mica bed heater
SD4 #3 - in the works ~ Folgertech FT-5, rev 1
Printit Industries Beta Tester - Horizon H1

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Re: SD3 large part not sticking on bed anymore!

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

See how flat that skirt line is? that is what you need

SD4 #1 & #2 - Lawsy carriages, E3D v6, Rumba controller board, mirror bed plate, X motor fan, upgraded PSU & Mica bed heater
SD4 #3 - in the works ~ Folgertech FT-5, rev 1
Printit Industries Beta Tester - Horizon H1

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Re: SD3 large part not sticking on bed anymore!

I did that. I lowered the extruder all the way down (almost touching the glass bed), and now there's less peeling. Not enough peeling to damage the print but enough to cause the final/finished part to bow at the edges. It's not as flat as it used to be before.

Also, the walls are tapering out a bit (not straight up).

What can I do to fix this?

http://soliforum.com/i/?V5h4KsK.jpg

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Re: SD3 large part not sticking on bed anymore!

Is your bed heating up properly?

SD2 - Stock - Enclosure - Heated Bed - Glass Plate - Auto Fire Extinguisher
Ord Bot Hadron - RAMPS 1.4 - Bulldog XL - E3D v6 - 10" x 10" PCB Heated Build w/SSR - Glass Plate
Thanks for All of Your Help!

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Re: SD3 large part not sticking on bed anymore!

Yes.

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Re: SD3 large part not sticking on bed anymore!

Have you changed to a different filament lately?  Also, make sure the extrusion rate is calibrated so a single perimeter print creates the proper wall thickness...seems like you may be over-extruding just a bit.

You can always downgrade to the earlier version of Slic3r just to verify that is the issue.

SD2 - Stock - Enclosure - Heated Bed - Glass Plate - Auto Fire Extinguisher
Ord Bot Hadron - RAMPS 1.4 - Bulldog XL - E3D v6 - 10" x 10" PCB Heated Build w/SSR - Glass Plate
Thanks for All of Your Help!

12

Re: SD3 large part not sticking on bed anymore!

is this on a stock bed? they do tend to warp over time, and the silicone heaters are not really big enough so the edges of the bed do not get as warm as the middle...
place a straight edge on the bed & hold it down tight to one side - see if it is still flat, or if it is warping.

SD4 #1 & #2 - Lawsy carriages, E3D v6, Rumba controller board, mirror bed plate, X motor fan, upgraded PSU & Mica bed heater
SD4 #3 - in the works ~ Folgertech FT-5, rev 1
Printit Industries Beta Tester - Horizon H1

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Re: SD3 large part not sticking on bed anymore!

Hi, I increased the bed temperature to 115C from 110C and I lowered the nozzle to almost touching the glass and that worked.

The problem now is that the extruder nozzle is getting clogged over large parts (large as in x-y, not in the z-axis), I think it's because the nozzle is so close to the glass the material have no place to come out and it's pushing back causing the extrusion wheels to clog up and not pushing the material anymore.

Any tips?

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Re: SD3 large part not sticking on bed anymore!

You'll have to find a middle ground between too close and too far, as is often the case in life.

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Re: SD3 large part not sticking on bed anymore!

jagowilson wrote:

You'll have to find a middle ground between too close and too far, as is often the case in life.

Could not have said it better myself...

and check that bed for flatness!

SD4 #1 & #2 - Lawsy carriages, E3D v6, Rumba controller board, mirror bed plate, X motor fan, upgraded PSU & Mica bed heater
SD4 #3 - in the works ~ Folgertech FT-5, rev 1
Printit Industries Beta Tester - Horizon H1

16

Re: SD3 large part not sticking on bed anymore!

My printer is borderline useless now. For the life in me I can't make it print any flat part without warping, which is mind boggling because for 3 years it had no problem with flat parts!

I am guessing it's one of two things:
1) The white ABS I am using is very different than the previous ones I used. This spool is a new patch. I buy a new spool every 6 months or so.

2) The software update screwed everything up. Can someone who has a good working SD3 give me all their settings?

I really don't know what to do. What a disappointing product.

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Re: SD3 large part not sticking on bed anymore!

the problem with someone giving you their settings is that what works for one person may not work for another.

If you are going to give up that easily, then perhaps 3d printing is not a good hobby for you.

IF you want to try to figure it out, then may i suggest you take a step back and try re-calibrating everything.

a good place to start is here: http://northwoods3d.weebly.com/blog/fil … ion-part-1

once you have that dialed in, move on to part 2, here: http://northwoods3d.weebly.com/blog/-fl … coming-out

and to level the bed properly, the bed needs to be at operating temp, and the nozzle (cold) must be clean and free of any drips/oozed plastic, or you wont get an accurate result.

SD4 #1 & #2 - Lawsy carriages, E3D v6, Rumba controller board, mirror bed plate, X motor fan, upgraded PSU & Mica bed heater
SD4 #3 - in the works ~ Folgertech FT-5, rev 1
Printit Industries Beta Tester - Horizon H1

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Re: SD3 large part not sticking on bed anymore!

Thanks. I will try those steps again. Being married doesn't help either. It was so much easier to calibrate the printer in my single days. sad

Honestly, 3D printing is not a hobby of mine. I am into mechanical design and creating new things. 3D printing is just the means of turning my designs into physical parts.

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Re: SD3 large part not sticking on bed anymore!

Hi, while searching for a solution to my printer's problem I came across a thread where someone suggested I use 0.48mm for the nozzle diameter even though the SD3 nozzle diameter is 0.4mm. Anyway, I followed his advice and it worked like a charm! No more peeling/warping! I don't know how it works but it works. If you can explain why that makes a difference please enlighten me.

One more problem though is that the print is coming out tapered up (not straight up). How do I deal with that? Thanks!
http://soliforum.com/i/?SboEz9i.jpg

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Re: SD3 large part not sticking on bed anymore!

you don't use it for the nozzle diameter, you use it for the extrusion width... there is a difference.

it has to do with the die swell and the calculations of the slicer... there are others that can explain it more fully than I can. tongue

and that taper you are seeing is because it is still lifting a little in that corner - notice the opposite corner looks straight? I don't think you have your nozzle quite close enough to the bed yet...

SD4 #1 & #2 - Lawsy carriages, E3D v6, Rumba controller board, mirror bed plate, X motor fan, upgraded PSU & Mica bed heater
SD4 #3 - in the works ~ Folgertech FT-5, rev 1
Printit Industries Beta Tester - Horizon H1

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Re: SD3 large part not sticking on bed anymore!

Ah, that makes sense! I will keep trying. It looks like I am getting close to a very nice print! smile Thank you very much!

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Re: SD3 large part not sticking on bed anymore!

It's much better now but it always peels off from one side of the print, the side that's closest to the rear-left corner. I don't know why though. And with the SD3 I only have one levelling screw in the back and that's in the middle, not in the corner so I don't know how to adjust that. Any tips?

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Re: SD3 large part not sticking on bed anymore!

Check the first layer print speed too. When I was playing around with my settings I set the first layer to 100% and it would not stick either. I changed it back to 30% and it worked better.

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Re: SD3 large part not sticking on bed anymore!

fadilee wrote:

It's much better now but it always peels off from one side of the print, the side that's closest to the rear-left corner. I don't know why though. And with the SD3 I only have one levelling screw in the back and that's in the middle, not in the corner so I don't know how to adjust that. Any tips?

With the bed and nozzle up to heat and after homing Z, position the nozzle over the back center screw and use a 0.003-4" thick (dollar bill) shim under the nozzle and adjust the back screw so you get some resistance to sliding the paper around under the nozzle.

After that position the nozzle over one of the front screws and repeat...do the same thing for the remaining front screw and you should be all set.  The 3 points represent a single plane and if those 3 points are aligned you should be good to go.

SD2 - Stock - Enclosure - Heated Bed - Glass Plate - Auto Fire Extinguisher
Ord Bot Hadron - RAMPS 1.4 - Bulldog XL - E3D v6 - 10" x 10" PCB Heated Build w/SSR - Glass Plate
Thanks for All of Your Help!