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<blockquote data-quote="Art Welter" data-source="post: 130500" data-attributes="member: 52">Re: Horn adapter 1&quot; to 1.4&quot;If you print the adapters thick enough, and can through bolt from the horn mounting plate to the driver mounting holes, you wouldn&#039;t need any aluminum. That said, there might not be enough room on a 1.4&quot; horn plate to line up with the driver bolt circle, so you may have to do screw notches and a plate on the driver side like we did.You can see in the upper right adapter flat head screws&nbsp; go through from the driver side to the JBL 2&quot; horn, but the bolt circle on the EV 1.4&quot; required a second set of holes, requiring the notched out areas for the bolts going through the aluminum plates.Don&#039;t know if&nbsp; printable plastic has much structural strength,&nbsp; but Baltic Birch has great screw retention, so long wood screws and some caulk provide an adequate hold for the aluminum plate.</blockquote>

[QUOTE="Art Welter, post: 130500, member: 52"] Re: Horn adapter 1" to 1.4" If you print the adapters thick enough, and can through bolt from the horn mounting plate to the driver mounting holes, you wouldn't need any aluminum. That said, there might not be enough room on a 1.4" horn plate to line up with the driver bolt circle, so you may have to do screw notches and a plate on the driver side like we did. You can see in the upper right adapter flat head screws go through from the driver side to the JBL 2" horn, but the bolt circle on the EV 1.4" required a second set of holes, requiring the notched out areas for the bolts going through the aluminum plates. Don't know if printable plastic has much structural strength, but Baltic Birch has great screw retention, so long wood screws and some caulk provide an adequate hold for the aluminum plate. [/QUOTE]

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