Saturday, September 21, 2024

How not to hang a door

The door took much more work than I had thought. A common occurrence during this build. Everything seems so simple and easy, until I start doing it. Then I find all the things I hadn't thought of. Learn that my plan isn't working out. And blow past my expected finish date. 

It seemed like a good idea to position the piano hinge on the door and lintel while they were both flat on the floor. Drill the holes in the holes in both. Then they would line up straight. Did that, then glued the lintel to the caravan body.  And then I bolted the door on and groaned.

Notice a problem?

Look closely at the bottom of the door. The gap on the left compared to the right. Not even close. 

I experimented with moving the holes on the lintel, but wasn't happy with how that was working out. Too many holes for the piano hinge would be too close to the edge. The basic problem was that the roof is not 100% level. There is a 5mm difference one side to the other.  Unnoticeable looking at the roof, but hanging a metre long door off it and the slight slope is amplified. Gluing the lintel to the roof really wasn't a good idea. I did consider just ignoring it, but I would look at the gap every time I opened the door. And I'm sure I'd quickly grow tired of people telling me it was crooked. 

Decided to remove the lintel. Wasn't easy. A lot of cutting glue and foam with a knife. 

Working on a solution

I had thought to glue a thin triangle wedge on top of the lintel to space up one side down. But as I was setting up to cut the wedge, I realised that I could also cut off a wedge from the lintel. 

A test with the door on and holding it all together with clamps to check the door would hang straight this time. Marked out where the lintel would have to go.  Undid all the set up. Coated the lintel in glue and clamped it on. 

Can't have too many clamps

And after the glue has set, the moment of truth.

Worth the effort!

Yes!

Sunday, September 15, 2024

Wiley Windows

Been a while since the last update. Work on the caravan has been happening though.

I thought making windows would simple. A couple of weeks. Easy. No surprise it didn't turn out that way.

My first window didn't get finished. The timber I used was too heavy. After looking at using aluminium, I settled for three ply at a bad time. At the two nearest hardware stores three ply was out of stock and on back order. I waited for orders, but no three ply. Tired of waiting I recycled cupboards and boxes.

I settled on four windows all in landscape mode. The door has a A6 sized (105 x 149 mm) window, just to see out before I open the door. The front would have an A4 (210 x 297mm). And the sides would have an A3 (297 x 420 mm). I'm not certain on the A4 window. It may change to an A3 in the future. But at the time, I didn't have enough three ply to make it larger anyway. Also, I decided to just get it done. Improvements can happen in the future.

Different colors for the different recycled wood.

Wiley Windows are what I wanted. I liked all the options they provided. They can be full open, partially open, even when raining, fit block out screens and mossie screens.


Weights while gluing the front edging on

The three ply was not marine grade, so I coated it with epoxy to waterproof it. At the time, the weather was cold. So cold that the epoxy was like peanut paste and wouldn't pour from the containers. When it warmed up a bit, it would flow, but found that the low temps, the set time was extended by a lot. Unless the surface was flat, it slumped off, or set on the way to slumping off. I was also surprised to find the wood soaked up the epoxy. It took multiple coats to get a layer of epoxy on.

The idea was that a piece of perspex A4 or A3 would fit in the window. A small error. I was 3mm off on one dimension for each window. I think it was the kerf on the saw on the wrong side of the marking line. Didn't pick it up until I went to fit the perspex. But okay in the end as can cut down the perspex to fit.

Cutting the holes in the cabin was a bit nerve wracking. I used the perspex sheets to mark with so that they would be level compared to the roof line. I marked out around the perspex and cut the laminate with a utility knife. I peeled it off, then drilled a large hole in the four corners. Used a hacksaw to cut roughly between the holes. Then I used the hot knife to smooth cut close to the marked edges.

Did you pick up my mistake in that list of steps? The windows are larger than the perspex. Back to marking out the difference onto the walls, cut the laminate off, cut the foam with the hot knife again. Now the windows fit.

Windows in the cabin.

Epoxy isn't UV resistance, so needed painting. Black on the outside, white inside.

Painted waiting for the cabin to be ready.


Windows aren't installed yet, as the cabin interior needs to be laminated.