3D model description
I inherited a HumminBird PiranhaMax220 echo sounder. But the misunderstanding is that it is very inconvenient to move it in space. Wires 2 pieces, battery 100x60 and weighing somewhere 1 kilogram, sonar and monitor. Carrying such a set to fishing is very inconvenient, so I decided to put everything together a bit. For me, this is the most ambitious project so far, both in design and execution time, as well as the amount of plastic spent per project. All in all, assembled with the echo sounder, the weight was 3033 grams. The case length was 160mm, width was 140mm, and height was 123mm. Printing time was 31 hours and the weight was approximately 550 grams. The thing to consider here is that I was printing at 100% fill rate at 60mm/s. For myself, I always make a safety margin. For example, I didn't know the weight of the battery but I knew it was heavy, also the wall under the sonar is 4mm and under the screen is 3mm. This is due to the fact that the screen is screwed in stationary and the sonar will be constantly unscrewed for immersion in water.
For assembly you will need:
a) For the handles:
4 M8x25 bolts
4 M8 nuts
4 cotter pins! Π8
b) For the screen:
3 screws (bolts) M3x10
3 nuts M3
c) For sonar (transducer):
4 screws (bolts) M3x16
4 nuts (flat!) M3
Print 2 handles and 8 spacers, which serve as a bushing to keep the holes from deforming from rubbing against the bolts.
Since the weight of the hull is constantly changing when the sonar is removed or the angle of the screen changes, it was decided to make exactly 2 handles rather than one off-center handle.
First we screw on the screen with the sonar, then put the battery in the compartment, then mount the knobs with 2 spacers on each hole, nuts and a socket inside. The nut also serves as a mount for the battery. Tighten so that the bolt doesn't torque, but the bushing does.
This time I won't post my GCode as usual as I was printing to the max, put your own parameters for economy and expediency. Have fun printing :)
P.S.: As far as I understand, this case will fit the entire HumminBird line with this mount and battery with dimensions 151x65x100. I have the SF1207 and AP1207 battery in 12 V 7 Ah form factors and everything fits.
3D printing settings
As I said, I printed on an Elegoo Neptune 3 Pro printer, with a layer height of 0.2 mm and a width of 0.45 mm. I set the fill rate to 100%. Supports are desirable for correct drawing of holes. Printed in a standing position ("in the correct position of the box"). Most importantly, the adaptive layers are disabled, because they confuse the dimensions and give error, and in such printing it is bad. Speed 60 mm / s, at a nozzle temperature of 235 and the table 75, so as not to sweat the plastic for long printing, but the area is large and does not tear off. Printed plastic PETG, the cheapest at 500 rubles per kg. spetschialno for this project bought. The handles were printed in a lying position, for strength and with supports