04/08/2022
Cripes - when 3D printing goes wrong
It looks like a bomb has hit it.
All of these were printed hollow and I thought I had manged to drill and drain all the uncured resin inside. But the recent very hot weather has proved me wrong - there was still uncured resin inside and as it seeped away it blocked up the drain holes. It then expanded and forced its way out through the weakest points giving the impression of an internal explosion.
So back to the drawing board for these and attempt to find a better solution and replace the damage. I also have other models that have suffered collateral damage and have resin sprayed on them. Hopefully I can solve this by painting over with matt varnish.
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5 comments:
Yikes! There's plenty of pitfalls with 3d printing. I though uncured resin inside was just a waste of material and maybe (if it got through the cured stuff and paint) bad for you. Who knew it could do a slow motion explosion!?!
I thought most of the slicers these days have some sort of 'click button - auto generate drain hole' option?
Hi Will
Are you using a UV box to cure them post 3d printing? I used to work in an industrial 3d printing place - and we had our fair share of disasters - but the UV box can hide a multitude of sins.
There are ways of building your own UV box too - some info on the internet.
I had heard of this but not seen it, especially gutting after you had painted them.
A shame that they have no second life - I wonder how many “destroyed” game markers or wrecked vehicle vignettes anyone needs?
Wow! I've never heard of this happening before. Maybe you can use them for terrain by repainting them as burnt out hulks.
Hi guys and thanks for the comments. I have a UV curing box and many of these were cured in it as they were printed late in the year, but the UV light doesn't get inside.
My replacements all now have large drain holes underneath which allow a more through cleaning out of the uncured resin and hopeful letting UV it to finish any off that hasn't washed out.
Using the Chitubox slicer need you to decide where to put the holes, and it can be difficult sometimes particularly on uneven surfaces.
All the wrecks have gone in a box, that I'll put out at the next show I go to so people who need wrecks can help themselves.
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