MINI Bluetooth Back Horn Speaker
Description
Mini Back Horn Bluetooth Speaker! Here is my mini back horn specker design. Made this for a bit of fun with an old Bluetooth speaker. The speaker is 9x8x5cm and comes in 3 easy to print parts with minimal supports needed. It uses a 36mm speaker (possible to customize to fit any speaker up to 40mm) and incorporates LED’s that light up the mouth of the horn. I have made the electronics compartment as large as possible to allow a variety of boards and battery combos to fit. I have included a blank body which only has the speaker port (no AUX, Charge or LED holes/Mounts) and a blank side should you want a plain one. If you would like a mount compatible with your speaker (anything up to 40mm), let me know the diameter and I will be happy to help. This also applies for the side plate. If you would like to personalize it with your name, let me know and I will add it to the files. --- Parts to print and how to print them --- - Main Body: The main body has ports added to allow access to the charge plug, Aux in and on/off switch. There are 2 mounts to hold the main board and there are also 2 x 3mm holes on the internal wall to insert LEDs to light up the mouth of the horn. I have also added a blank version so you can fit different boards, batteries and accessories. For best results, print in its side (with the side wall in the bed). You will only need supports added for the speaker port and aux/charge port. I recommend at least 4 shells and a 0.8mm roof and ceiling so it reduces vibrations that could warp the sound. - Side Plate: There are two versions, one with my name and another one left blank. If you would like me to make one with your name or design on it, let me know and I will add it to the files. Very simple print. Print flat with no supports needed. - Speaker Mount: The mount is designed to a take a 36mm speaker which is held in with 4 x flanged self-tapping screws. Another simple print. Print this facing down with no supports needed. --- Putting it together --- Place the mainboard in its location and simply hot glue or screw into place. For the battery I have simply used a bit of double-sided sticky tape to hold it in place. The LEDs fit snug in their locations but I recommend adding a little bit of hot glue to fully secure them in place. Installing the speaker into the mount is fairly easy. I recommend adding a tiny strip of foam or double-sided gel tap on the brim where the speaker sits in the mount. The speaker is then held down with 4 M2 self-tapping flanged screws (if you don’t have flanged screws, you can use washers with a normal screw). Not completely necessary but I have also added a strip of foam tape around the back edge of the mount (where it sits on the body) to help seal the gap. To attach the mount onto the body, line them up and using a 1.5m drill bit dill holes in the body to match the holes in the mount. Use 4 x 1.7mm self-tapping screws to secure it onto the body. Route the wires into the small grove that leads into the mainboard compartment and add the little bit of foam tape to fill the rest of the groove up. The side plate should be mounted in a similar way to the speaker mount drilling 1.5mm hole in the body that match up to the side plate and using 8 x 1.7mm self-tapping screws. Either thin foam tape or double-sided gel tape can be used to seal the edges if you so wish. That’s it, your good to go! If you would like any of the parts customised to fit your speaker or have your name on the side plate. Let me know and I will add the files for you to download. Happy Printing!
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