I messed up :(

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#1 xIkuna on 9 months ago

Soooo yeah. I think I messed up. I'll preface this with, this is my first time working with all the materials. So I didn't think things through, and now I'm afraid I can't fix it. Here's the lowdown:

I'm making the Transistor for a costume contest that's in about a week and a half. I'll add a pic for reference, but a few things went wrong/I didn't think about it until it was too late. I used pink insulation foam for the inside of the sword, I didn't paint it white/blue because when I tested the diffusion, it looked fine. So I glued the insulation foam core to my base, which is plexiglass, annnnd now you can see 1) the glue (it's clear but you can still see the glue) 2) you can tell it's slightly pinkish. There's no way to try again, I can't unglue it and I don't have the time or money to buy more plexiglass. I can't use the other side as the front, because I have a pvc pipe visible.

Also despite me priming the insulation foam, it looks like the weld-on #16 glue I used it eating through the foam :)

Reference to sword: [url]http://4.bp.blogspot.com/-sienIAIAvMU/Vd78JYTDfII/AAAAAAAAIbg/WwRit60-iKc/s1600/TransistorSword_2.jpg[/url]

Here's the glue/pink issue I'm having:
[url]https://imgur.com/gKVUl4u[/url]
[url]https://imgur.com/uhYZ2yd[/url]

#2 xIkuna on 9 months ago

My only thought to solve this issue is to cut out the same shape in craft foam and glue that to the outside. I just don't know if the glue would eat through and ruin that, too? Is it possible to use epoxy, or is weld-on the only glue that works for acrylics?

#3 Penlowe on 9 months ago

If the white shapes need to be dimensional, yes do the extra foam, but if they should be flat just use paint.

While you are looking at it up close, I think it's not as bad as you think. Most people will only glance in passing, or be at least 5 feet away, that's how you should be judging this.

I teach sewing. People make their first wobbly seam and look at the raw inside and sigh in frustration. We remind them that it is not going to show when worn. And my boss often adds "if someone is looking that close at your seams they need to buy you dinner first" ;)

#4 Scunosi on 9 months ago

Yeah I agree with Penlowe, I'm not really seeing the issue other than the glue eating the foam. I really can't see any pink either, it's just not blue-blue. I think just painting over the foam to hide the interior (or using craft foam for dimension but from your reference the runes look flat) should be sufficient. Plus then you could make it UV-reactive paint which would look really cool!

#5 nathancarter on 9 months ago

Agree with the layer of paint on the surface of the acrylic, to hide the glue damage.

Use a suitable masking tape or sticker-based stencil - or cut it out of vinyl if you have a vinyl cutter. Rattle-can spray paints will slightly dissolve the adhesive on the edges of blue painter's tapes, and other tapes that are not specifically designed for that - so for best results, get a model-quality masking tape.

Do your best to avoid brush strokes, which will be kinda hard on the slick acrylic: use an airbrush or spray can if you can; if not, use a sponge (torn upholstery foam or something similar), and a "pounce" technique to blot the paint on instead of dragging brush strokes. Worst case, use a high-quality brush, but you'll likely need several layers to minimize brush strokes.

#6 xIkuna on 9 months ago

Thank you for the advice everyone! I'm glad it doesn't look as bad as it does in my head lol I've decided to paint it because 1) easier 2) I already have the paint! Hopefully it'll turn out good!

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