Week 12  This week the second batch of planks and some ply parts

The bits we received

And what we did with them

First off, mark the position of the tail shaft moulding supports.  I used an off cut corner of an earlier ply fret as a square

Gluing the supports in place is straight forward.  Make sure they are flat and square.  Mine needed a little sanding to get them to fit as they were too long. 

On to the planking.  First a word of warning - I'm about to deviate from the instructions.  If you follow my example you do it entirely at your own risk.  It may all go hideously wrong.  I don't claim that this is the best way, or even a good way.  It's simply the way I'm doing my model.

Anyway, When I laid the next plank on the midships's section I noticed that there was a gap in the middle when the plank laid naturally.

Rather than force the plank into a curve I decided to taper the ends.  This involved sanding the about 1.5mm off the width of the plank at the ends, working evenly from the middle, so the plank is a full 6mm wide at the middle, working evenly down to about 4.5mm at each end.

Here is the finished plank glued in place.  If it goes the way I expect it to, the planks should be less stressed and lay straighter.  If not ? Well, we'll see.......

The next plank also wanted a fair tapering.  Here's a photo of the fitted plank.  The next plank will want tapering even more.  It is possible to force these planks into place without tapering them, but I don't want to do that.

As I said, I'm deviating from the instructions - which some might consider foolhardy.  I don't advise anybody to follow my example.  One drawback is that I will probably need more planks.

As the planking progressed round the curve of the hull I started to get gaps appear as the joints started to open up.

This is easy to fix.  Simply sand a bevel on the top edge of the plank you are about to apply.

Now when you hold the plank in place it butts up nicely with no gap.

Here is the planking completed for week 12.

 

Hot tip of the week

I thought I'd give you a step by step of how I apply a plank.  I apply four planks in a session, port and starboard, forward and aft.

1.  Dry fit the plank.  Check that it butts up against the plank above perfectly.  Clear out any dried excess glue that may stop it fitting perfectly.  Ten trim both ends.  Finally, mark one end, so you know where it goes.  I repeat this for all four planks.

2.  Hold the plank in place, and draw a line on the frames to show how far it comes down.  This show you where to apply the glue.  If you're using the planking clamps, drill a 1mm pilot hole about 3 mm below the line.  See the photo.  Again, repeat this for all four planks.

3.  Apply the glue for one plank, and pin or clamp it in position.  Apply glue to the frames and also to the edge of the plank above, and wipe off any excess before it dries.

4.  Remove the clamps or pins when the glue is dry.  I like to leave it several hours before removing the clamps.

5.  Finally, I mark the centre line of the frame on the plank I've just fitted,  This will help show you where to apply the pins or clamps when you fit the second layer planks.  You will need to replace the marks with pin pricks or something similar as the pencil will get sanded off when you sand the planking smooth.

How many hours does it take to build the model ??

This week :

6 hrs

Running total :

29 hrs

Take me back to week 11

Take me to week 13