Finally got back to the bench on this. I've begun the Black Dog conversion now.
I began by removing all of the "aiming" device's components from their pour-block along with the armored rear plate. A real fine razor saw made this quite easy (and touch up with a #11 and sanding stick). Once I had all the parts were cleaned up and laid out, I dry fitted the armored back with the aiming box and the bracket that goes on top. There were no issues, however it's necessary to ensure that the box is set within the armored back's cutout properly in relation to the bracket....the bracket being the
key factor for alignment. Once that box and bracket were in, I added the crank handle and the two box brackets for the underside.
Here's where the first "issue" with the instructions arrises: The instructions show that both brackets are angled in towards the center - as in a trapazoid that has one short long side and one long long side. However, the parts are not moulded that way. One is "short-long and long-long" and the other has the end angles in the same direction. Both brackets would be flush with the bottom of the box
and the armored back (I really hope this makes sense
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).
Anyhow, the outer bracket was fine. The inner bracket was mounted so the top was flush with the box and the bottom would be flush with the floor (versus flush with the armored back).
Lousy pics, and I'll reshoot them later:
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Mike
Edit: Quick fireworks pic to show you what I meant about the aiming box's support brackets:
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