With this project I tackle two challenges in one.
The 'Small Workshop Makers Group' set a Halloween challenge also, Sumo's projects asked me to take
part in the 'Aussie 4x2 Challenge'. I did mention to him that I'm in the UK but he
reminded me I was born in Oz so I had to get my finger out.
I'm making the Bat Box from 4x2.
I wanted to do the job right so I downloaded the Bat Box information Pack from the
Bat Conservation Trust Website. It details everything you need to know from habitat, correct orientation,
location to types of Bat Boxes best suited for species here in the UK.
I'll leave links in the description if any of you feel like having a go.
Crosscutting the 4x2 to length first makes the pieces more manageable to rip in half later
I Quelled the Beast to swap out the crosscut blade for a ripping blade.
The kerf from a crosscut blade is not wide enough to allow for safe ripping.
Because my table-saw won't cut the full 4-inch, I used the flip method to rip the timber in half.
Moving inside to dodge the rain I ripped down some 20mm battons and cut them to length.
The body of the Bat Box is made up from three panels, a back, a middle and a front
each made from two boards glued together. To save time I make up all three panels
and clamp them up in one go using greaseproof paper to separate them.
As you'd be hard pushed to find quarter sawn 4x2 I glue the panels together with
opposing grain pattern to try and ease any warping or cupping that may occur during the life of the box
While the panels are in the clamps I cut some more board for the roof.
This is also arranged with opposing grain pattern again to reduce the amount of warp that may occur.
With the panels out of the clamps I clean up the squeeze out that I couldn't get to earlier on.
I rough up the surfaces with a back saw. This gives the Bats better purchase on
landing and helps them clamber up inside the chambers.
I can now glue and nail everything together
Once I nail each end of the batton, I use a skew nail or dovetail method of nailing.
This resists separation through warping or being pulled apart.
I'm starting to get the knack with this brad gun!
This must be the only Bat Box in Britain with book-matched paneling!
A 12 degree angle on the bed of the bandsaw puts an incline on the top of the box to help the roof shed water.
I also cut the same angle on the roof.
Now end grain soaks up glue like a sponge so I apply a coat and let it go tacky.
Then a second generous layer goes on to glue the roof on. This two layer method
stops the endgrain sucking the moisture out of the glue before it has time to set.
A few Brad nails to hold the roof in place while the glue dries...
...and the jobs a Good'un.
Although they're called bat boxes they're more like bat roosts providing
shelter for the Bats during the spring and the summer months when they are at
their most active. When it comes to hibernating they will nearly always seek
out an environment with more stable conditions. I'll be fitting the Bat Box
under the eaves in the early spring where it will remain undisturbed for
many years providing shelter for these beautiful creatures.
Job's a Good'un, thanks for watching :-)
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