|Forum topic by fiddlebanshee||posted 05-03-2010 03:26 PM||1373 views||0 times favorited||19 replies|
05-03-2010 03:26 PM
I just signed up for LJ but have been reading the forums for a while. I am just getting started with woodworking and my first project is to remodel a shed into a chicken coop. The first task, while I am waiting for delivery of the shed, was to make 4 windows with plexiglass to give the chickens some light and ventilation.
I have a sliding compound mitersaw (Makita 10”), so I cut all the frame pieces out of 1×3 pine to the exact dimensions (or so I figured). I had plexiglass rectangles that are the standard 11×14”. I also have a router (milwaukee, 1.75 hp) that I used for the first time, to cut grooves in the inside of the frames to receive the plexiglass. So far so good, I could’ve done a better job of the routing. I don’t have a router table so I did this handheld and didn’t hold the router perfectly horizontal, so there was considerable burning (to the extent that. even though I was outside but near to the door, that the fire alarm went off. But that’s a lesson learned and I should next time either make a jig to keep the thing horizontal or to invest in a router table. This was not the real issue. This was:
I assembled the frames with a kreg pockethole jig set. This worked fine once I found out how far away from the joint to position the jig. I assembled everything, put some silicone in the grooves to hold the plexiglass and to shield that from the weather. THen I let them stand vertically overnight. I had not noticed anything wrong with them so far. THey were square (as in the diagonals matched) so I was happy.
So here’s what then happened and what concerns me:
Next day I lay them flat on my workbench to sand and prime them for painting. Two of them will not lay flat, one corner will come up from the worksurface by about a quarter inch. What caused this to happen? Was this there already yesterday and I just didn’t notice, being so focused on getting them square on the diagonals? Did something warp overnight, and if yes, what could I have done to prevent this? Is there anything I can do about it to correct this?
By the way, since I don’t think the chickens will mind a bit of extra ventilation I’m not overly concerned for this particular project, but I want to know what happened so that I can learn and prevent this in the future.
Your insights are appreciated.
-- As if I needed another hobby!