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Tip: Bed adhesion

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Posted · Tip: Bed adhesion

@cloakfiend

With low density infill and low viscosity it could work, plaster might perhaps be difficult. 

There are openings in all directions in the gyroids.

 

 

image.thumb.png.8147fe33d647513fb8635ebaafe10cc8.pngimage.thumb.png.624fcf2b075382bec99c1386eef19ebf.png

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Posted (edited) · Tip: Bed adhesion

 As I said, it is a corrugated grid, and yeah, you would definitely have to use something low viscosity.

Edited by kmanstudios

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Posted · Tip: Bed adhesion

Hmm. Low density may not be an option with some cavities, but curious how this would work say on a smaller scale in a humanoid figure. The cross (1% grid infill ) in is my most common choice currently with an offset to the closest cavity areas. But when its an uneven model with multiple cavities it gets trickier. Still a bottemless print option would be preferential to me as its a real drain on time. I can waste up to 4hrs just waiting forcthe bottom layer, and it gets very frustrating knowing the rest only takes about 2 hours!! Such a waste of time. I spoke to someone in cura about this and they said it could be possible to convert the bottom layers into infill. Then you could just select 0 or 1 or whatever and the geometry would be accounted for. This would be such an awesome time saving option. Control over the initial single bottom layer. Please devs give me control!!!! I beg you.

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Posted · Tip: Bed adhesion
2 hours ago, cloakfiend said:

Please devs give me control!!!! I

User control is most appreciated firmware or software.

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Posted · Tip: Bed adhesion

Wasn't there an option in Cura in which you could shift a second model into the first one, to modify the infill? So, if you would make a second model sitting on the glass, and change that to zero wall width, and x % infill? Then shouldn't that give an infill-only bottom plate?

(I don't have the latest Cura version, so I don't know this, but I vaguely seem to remember reading about it: was that you kmanstudios who used that technique in your gyroid-filled statues? Or was it gr5?)

 

Second option: maybe in CAD you could use the shell only of your model? Thus turn it into a surface instead of solid, then delete the bottom plate, and then thicken that shell to maybe 0.8mm? And then add a custom brim for stability while printing? I don't know if your CAD program allows this, but it might be worth trying?

 

Then you could just pour in gypsum. Normal gypsum won't work with a gyroid infill: it is way too viscous. You would have to use epoxy instead. Unless you have a special gypsum vibrator equipment to make it flow better. I am talking about powerfull dental gypsum vibrators here, which can bring a whole wall into resonance, not about the more gentle woman things.  :-)

 

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Posted · Tip: Bed adhesion

Sounds interesting. But i suck at cura. An option to not print the bottom layers would be easier. I could always just moddel it hollow or with a conical base or something. Worrying about thickness is annoying as its size dependant and i dont even want to think about that stuff with a model that hasca fixed shell thickness. I print random sizes often or just to finish filament off so a hollow model would not allow for this random behaviour. Unless im mistaken and there is an inside shell thickness mode or sonething? I guess ill just have to come up with a time compromise. As modelling takes time as does messing in cura.

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Posted · Tip: Bed adhesion

Howdy,

I am printing nylon (UM3) and cannot find a solution for the problem shown with he brim. The 5mm brim is nylon, build plate heat is 60C. The upper part of the image shows the beginning of what I am trying to print; a rounded bottom, hollow capsule, with a hole in the end. Of course, the brim will not firmly hold the capsule and the print fails before it is completed. The capsule is 15mm L and 9mm D and the wall thickness is .625mm. I am using .156 line width with a wall count of 4, printing temp 230C and Print Thin Walls.

What makes it so puzzling is that I can get a good brim then this happens. For now, I have switched to PVA for brim to see if I can work around the issue. I would appreciate a bit of help with this...I am behind schedule and a team is waiting for me.

Cheers, Whiteknuckle

 

 

 

 

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