Print of this model: http://www.thingiverse.com/thing:486198
PLA, coated in XTC-3D, then primed and lightly sanded.
I just learned (again) that when working with paint, don't touch it to see if it's dry yet.... Just leave it alone.
jimc, any clear coat brand recommendations?
iPhone 6 dock
iPhone 6 dock
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Last edited by jsc on Fri May 15, 2015 6:19 am, edited 1 time in total.
Re: iPhone 6 dock
Beautiful finish work Jin..... 
(Hey, BTW - you use a lot of XTC.....I found a really cool tool that is spectacular for applying the XTC - and it's re-usable! (Yeah, getting a little tired of ruining my good brushes, because I've mixed up a bunch and it's hardening on me, and I can't find the disposables. Which don't work worth a damn anyway.)
It's a silicone glue brush. There are two that i found on Amazon, one by Bench Dog (larger) and one by Rockler(smaller). But given the price of those, I'm testing it tonight using a small silicone basting brush from Target - those are dirt cheap and they're the same thing. I just cut the bristles off to about half an inch or so - (they're longer than the glue brush bristles and they drip.)
But the secret to using it is - you don't clean it. At all. You set it aside on a sheet of foil and let the XTC dry on the brush and then just peel it off in one piece the next day. (So you might want to pick up a couple to have one to use while the other is hardening. Neatest thing I've ever seen.)
The peeling definitely works for the glue brushes - I'll let you know tomorrow if it works with the cheaper basting brush tomorrow after the XTC dries.
Update: Yep! Peels right off the basting brush just as well.
(Hey, BTW - you use a lot of XTC.....I found a really cool tool that is spectacular for applying the XTC - and it's re-usable! (Yeah, getting a little tired of ruining my good brushes, because I've mixed up a bunch and it's hardening on me, and I can't find the disposables. Which don't work worth a damn anyway.)
It's a silicone glue brush. There are two that i found on Amazon, one by Bench Dog (larger) and one by Rockler(smaller). But given the price of those, I'm testing it tonight using a small silicone basting brush from Target - those are dirt cheap and they're the same thing. I just cut the bristles off to about half an inch or so - (they're longer than the glue brush bristles and they drip.)
But the secret to using it is - you don't clean it. At all. You set it aside on a sheet of foil and let the XTC dry on the brush and then just peel it off in one piece the next day. (So you might want to pick up a couple to have one to use while the other is hardening. Neatest thing I've ever seen.)
The peeling definitely works for the glue brushes - I'll let you know tomorrow if it works with the cheaper basting brush tomorrow after the XTC dries.
Update: Yep! Peels right off the basting brush just as well.
Last edited by Jules on Fri May 15, 2015 9:03 pm, edited 1 time in total.
Re: iPhone 6 dock
Interesting. I've been using a pack of disposable foam brushes that can be had very cheaply. The only downside is that if it is loaded up and I use it in a tight space, it will just squeeze out like a sponge (which is what it is) and leave a blob of epoxy which is hard to spread around with the brush, which is what left it there in the first place.
I have a silicone basting brush. I just got it out to take a look. The bristles are long and very floppy. Maybe I'll try one of the glue ones.
While shopping around on Amazon just now for brushes, I found some graduated medicine cups. 100 for $4-5. Very difficult to meter small amounts by weight, so these will be very handy.
Hey, does this mean you're checking out XTC?
I have a silicone basting brush. I just got it out to take a look. The bristles are long and very floppy. Maybe I'll try one of the glue ones.
While shopping around on Amazon just now for brushes, I found some graduated medicine cups. 100 for $4-5. Very difficult to meter small amounts by weight, so these will be very handy.
Hey, does this mean you're checking out XTC?
Re: iPhone 6 dock
Oh, yeah, I've tried it on a couple of things now - I coated that little toothpick holder that I'd made, put a couple of heavy coats on a saran wrap holder before finishing it, and I tried it on an iPhone case but it was just too shiny for that and I had to reprint it. (Couldn't sand it in all those little holes.)
It's a pretty good filler, but i've been too heavy handed with it - i get drips and runs that have to be sanded off. (Not the world's most patient person.
)
It's good for "got-to-be-smooth" decorative stuff, but i generally just leave stuff the way it prints - the M2 does such good work it doesn't need much finishing.
(Cut the bristles off of the basting brush at about half an inch to 3/4 inch from the handle - the bristles on those are too long and floppy to work with the XTC without modifying it.)
It's a pretty good filler, but i've been too heavy handed with it - i get drips and runs that have to be sanded off. (Not the world's most patient person.
)It's good for "got-to-be-smooth" decorative stuff, but i generally just leave stuff the way it prints - the M2 does such good work it doesn't need much finishing.
(Cut the bristles off of the basting brush at about half an inch to 3/4 inch from the handle - the bristles on those are too long and floppy to work with the XTC without modifying it.)
Re: iPhone 6 dock
Good call on those cups! I'll have to get some. I feel like I've had curing issues when trying to mix 10g part and 4.5g part b on my digital scale.jsc wrote: While shopping around on Amazon just now for brushes, I found some graduated medicine cups. 100 for $4-5. Very difficult to meter small amounts by weight, so these will be very handy.
For clear coats, I really like Krylon-flat acrylic clear.
Re: iPhone 6 dock
My scale doesn't even do fractional grams. Also, with 15g of XTC-3D you could coat a house.jereywolf wrote:I feel like I've had curing issues when trying to mix 10g part and 4.5g part b on my digital scale.
Great, I'll try that. Bare primer is not very sturdy.jereywolf wrote:For clear coats, I really like Krylon-flat acrylic clear.
Re: iPhone 6 dock
My scale doesn't either....I just try to get it close.jsc wrote:
My scale doesn't even do fractional grams.
Great, I'll try that. Bare primer is not very sturdy.
I would recommend doing 4-5 light coats, a few minutes in between each one (depending on temperature/humidity).
Re: iPhone 6 dock
Huh somehow i missed this thread. Well atleast jerey gave you an answer on the clear. I dont really know anything that would come in a spray can. All i could recommend is that you stick with a good brand like krylon or rustoleum.