Up until I did these mods, my front baffle would sit nicely against the motor and I would glue it down with RTV. Right or wrong, the only fasteners I had for the front baffle was a pair of screws on either side. But now I had this big gap behind the prop and that’s no good. So I added some straps and fastened them onto the big M10x1.25 holes in the front.
I have a 1” square of 1/8” aluminum with one edge radiused. That’s what is clamping the strap in place.
On the left strap, there was a machining step next to the M10 threaded hole and I also added a washer so everything sat flat.
The geometry was sort of tricky to figure out and I ruined some scrap while playing around. The first one took 2 hours, the second one about 40 minutes. I sort of want to bring those huge bolts to the lathe and center drill them. They seem heavy.