How to print with glass  

RE: How to print with glass

@swiss_cheese

Makes total sense

RE: How to print with glass

This is about as good as I can get so far.  The edges are clear but the middle is more cloudy.  This is about 8mm thick.  I'm trying something else now with the sainsmart pink for my wife to see if an actual part is reasonably see-through.

RE: How to print with glass

That's about as good as I've managed without post processing.

RE: How to print with glass

@swiss_cheese

Oh good! maybe I'm doing something right 🙂

RE: How to print with glass

you most certainly are, your playing and having fun   😎

RE: How to print with glass

@swiss_cheese

I have a set of assorted sandpapers coming that can be used wet or dry with varying grits so I can try doing some post processing too.

And it seems I've beat the MMU into submission and I'm 70% on the cuddling owls.  All in all a good day! 🙂

RE: How to print with glass

cant wait to see the latest MMU I was liking the colors you chose

RE: How to print with glass

@ssill2

Looks a lot like stain glass.  How hard was it to get your MMU tuned in?  I gave up in mine too soon.  

RE: How to print with glass

@swiss_cheese

status at 84%

RE: How to print with glass

@cwbullet

So it appears that all this time my extruder idler bolt was too tight.

Yes, I still believe you have to have to have the standard aftermarket parts for it, but in my case it was always wonky, even with calibrating the finda and ir sensor.   So once I showed support that I had calibrated those two sensors, they told me it had to be either the mmu idler bolts or the extruder idler bolts.  So I sent them pictures of both and they said without a doubt that my extruder idler bolt was too tight.  And it seems they were right.  This thing has been humming along since yesterday. 

RE: How to print with glass

you know this is just my sick sense of humor, but I would print little pink brains in them.

RE: How to print with glass

@swiss_cheese

That would be fun with transparent fillament around.

RE: How to print with glass

Posted by: @swiss_cheese

@john-6

that is correct, ironing is a sparse infill designed to achieve an optical effect from your eyes perspective as a top finish, it is in no way intended for optical quality/clarity from a see through stand point.  another way of saying it is, it's not about optics ironing is about smoothness. 

I mentioned Ironing because the Prusa document on transparent filament indicated it

RE: How to print with glass

@john-6

I've played that game, if you get a good result with it I'd love to see it. my experience with trying to print smooth clear objects with FDM taught me that its better to over extrude the fill just a tiny bit then to use ironing. ironing caused more defuse refraction of the light.

maybe I wasn't doing it right.

Swiss_Cheese

RE: How to print with glass

Posted by: @swiss_cheese

@john-6

 

I've played that game, if you get a good result with it I'd love to see it. my experience with trying to print smooth clear objects with FDM taught me that its better to over extrude the fill just a tiny bit then to use ironing. ironing caused more defuse refraction of the light.

 

maybe I wasn't doing it right.

 

Swiss_Cheese

Unfortunately I dont have any clear filament

RE: How to print with glass

@swiss_cheese

Yeah I think you are 100% right about the over extrusion.  I want to play with this some more.

RE: How to print with glass

Here's an example of what I've been able to get. As I said it's milky with some of the lines showing. This is an earring pendant about 30mm long and 3mm thick. You can plainly see through it but I would love to get more of a crystal clear look. These actually look quite nice when worn in real life. 

I've tried vapor in a closed jar, dipping in an acetone bath and using a mop brush. About the only thing I have not tried is heating the acetone (**Whoooompf!**).

One video on the net shows one guy heating acetone to the boiling point. I'm not that brave!

RE: How to print with glass

@annier

Are those lines inside the object, or at the surfaces.   in my prints so far I can get clear through on some of the edges, but the middles all have lines within the print.  this is where I think swiss_cheese's idea of over extruding might be a step in the right direction. In vase mode I can get some nice results with all my clear PETGs.  I made my wife some little medicine cups that are completely see-though.

RE: How to print with glass

@annier

heating acetone didn't seem that smart to me either, those were early experiments I don't think many do that today. What would you say your best results come from vapor, or Mop brush? or are they different enough that you use them in different ways. I've done a reasonable amount of vapor smoothing and find that in a clear box with a low voltage fan is best also the box is fillable from the outside.

RE: How to print with glass

Sorry if I appear to be ignoring anyone but I've got two threads confused with one another. 

First, it's Hatchbox ABS transparent. From Amazon. Prints very well. 

Second, if you look at the picture, the lines running left to right across the pendant are the ones on the very bottom on the rear surface. 

The lines lengthwise are all internal. I think this was one set to 1.05 flow rate. 100 percent in fill.

It's kind of a coin flip as to what method gives you better results. 

Vapor in a jar or paint can can take forever but is very consistent. Brushing gives excellent finish but you gotta be careful, just tease the surfaces with the mop brush. 

Hope I've answered everything!