Follow the steps to assemble the speaker:
Download the CAD file and print it on a 3D-printer. The speaker should be printed in two parts divided on the middle of the slender side. Make sure that each part is printed on the speaker. This will result in a lot of support structure on the bottom of the print but it will alsoprevent the joint line from warping.
Remove the support structure. This is a tricky process so have a bit of patience. Use a pliers and a hobby knife to seperate the support structure from the speaker.
Abrade the two parts with sandpaper. Look out for pointy corners or rough unev areas, especially where the support structure has beem removed, and try to even the out.
Glue the two parts together. Place the of the table and try to fit them together. Look if it fits completely. If not you can use a file to to remove a bit of the material where it is needed in order to make it fits perfectly. Use “Loxeal instant 14” to join them and let it dry for 10 minutes.
Spartle the model with “Finspartel”(smoothing trowel) from Danalim.
You might want to do this step more than one time for a smoother surface finish.
Pre-treat your 3D printed model with a primer. It is better to treat it with several thinner layers than one thick layer.
Collect a handle bar. The diameter must be around 20mm but make sure to measure to measure the exect diamiter on your printed 3D model since this can differ effected by the print quality the printer. If its not a perfect fit you can always grind it down a bit.
Painting the model.
Lasercut the mounting plate
Collect or cut two blocks and a couple of magnets.
Glue the magnets on the edges of the mounting plate
Mount the raspberry pi
Inserting the speakers
It is a good idea to start with testing the sound before mounting the speakers.
Now connect the wires to the big speaker before mounting it on the mounting plate. Mount the speaker by fastening the nuts.
Lasercutting the front plate
Glue magnets on the front plates and make them fit to the magnets on the mounting plate. Mount it to finish the MGA Speaker.
Put on the front plate and you are done.