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11-10-2017 #11
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12-10-2017 #12
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13-10-2017 #13
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13-10-2017 #14
Read over more epoxy-related posts before pouring and came across the one by Boyan Sylvaski discussing shrinkage of centered bridge causing distortion in the middles of the rails! Well, I wasn't tearing it down and starting over. So, I did the pour, gave it time to flow out, and then blocked the bridge entrances with razor blades:
Used a heat gun multiple times to get rid of bubbles. I was surprised at how well that worked. You could see the bubbles pop and disappear as you waved the heat gun over. Top looks like glass at this point.
Wallace
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18-10-2017 #15
Pulled forms off today. Not sure if this was because I used the Totalboat epoxy, but I was surprised at the size of the meniscus. I have one side pretty much cleaned up, but I'm guessing I had to file in maybe 5mm from the edge to get rid of it. Does this sound like what most of you see? Nothing to base this on, but I expected it to be a narrow and steep meniscus. I'll try to get a pic of the other side before cleanup.
Linear rails supposed to arrive from China this Friday...Last edited by wallyblackburn; 18-10-2017 at 06:57 PM.
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19-10-2017 #16
I've not done epoxy before but your query may be answered in this excellent epoxy thread :
http://www.mycncuk.com/threads/8197-...-for-levelling
IIRC others have suggested pouring epoxy 40mm wide for 20mm rails to allow for a miniscus of about 5mm and then some.Last edited by AndyGuid; 19-10-2017 at 12:49 PM.
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19-10-2017 #17
Wow.. fast progress! I had my moat on for 8-10 days for guaranteed cure..
But you didn't have the super slow stuff?
I used reactive resins and had about 4-5mm meniscus.
Skickat från min SM-N910C via Tapatalk
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19-10-2017 #18
Or maybe I just rushed it :(
It seems super hard though. I used the slow - not extra slow. Sounds like the meniscus on mine was about right then. Still amazes me how this works. I could not get the frame level in all directions due to an apparent twist. But no matter which way I put this level, all I see is:
Granted, that is just a (high quality) carpenter's level, but still pretty cool.
Thanks,
Wally
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19-10-2017 #19
Yeah I know :D
I was amazed with the glassmooth level surface..
Awsome stuff for DIY applications.
I was a bit stupid as I built my moat out of masonite and the epoxy merged with it. Proper hell to clean :)
Did the tape you used come of easy?
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19-10-2017 #20
No, it was also proper hell also! I'll use packing tape backwards next time as Clive and others suggest...
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