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Pololu-Zumo-Shield-Arduino-assembler-shield (voir la source)
Version du 7 avril 2017 à 15:18
, 7 avril 2017 à 15:18→Châssis et shield
* Place an M3 nut in each of the two side slots near the rear of the chassis. The slots are sized so that nuts will not be able to rotate within them. (These nuts will be used to mount the idler sprockets later.)
* Place an M3 nut in each of the two side slots near the rear of the chassis. The slots are sized so that nuts will not be able to rotate within them. (These nuts will be used to mount the idler sprockets later.)
* If you want, peel the protective paper masking off both sides of the acrylic spacer plate pieces (the spacer plates in our pictures show what they will look like with the masking peeled off). Alternatively, you can leave the masking on for additional thickness. If you leave the masking on, it will be mostly concealed when the robot is fully assembled.
* If you want, peel the protective paper masking off both sides of the acrylic spacer plate pieces (the spacer plates in our pictures show what they will look like with the masking peeled off). Alternatively, you can leave the masking on for additional thickness. If you leave the masking on, it will be mostly concealed when the robot is fully assembled.
* Cover the chassis and motors with the spacer plate pieces and then the Zumo shield. The holes in the spacer plate should line up with the through-holes in the shield resting on top of it, and the motor leads should be aligned so they pass through the slots in the spacer as shown in the picture below. There is only one correct orientation for these plates. (The plate consists of two separate pieces to make it possible to disassemble the Zumo without having to desolder the motors or battery terminals.)
* Cover the chassis and motors with the spacer plate pieces and then the Zumo shield. {{underline|The holes in the spacer plate should line up with the through-holes in the shield resting on top of it, and the motor leads should be aligned so they pass through the slots in the spacer as shown in the picture below}}. There is only one correct orientation for these plates. (The plate consists of two separate pieces to make it possible to disassemble the Zumo without having to desolder the motors or battery terminals.)
{{POLImage|Pololu-Zumo-Shield-Arduino-assembler-shield-40.jpg|350px|Entretoise en plexiglas positionné au dessus du châssis Zumo}}
* In each of the four mounting holes, insert a #2-56 machine screw through the shield, spacer plate, and chassis, and tighten it against a nut under the chassis. It is usually easier to place the nut into the recess first and hold it there with a finger or piece of tape while inserting the screw. Note that the kit includes two different sizes of #2-56 machine screws: 1/4″and 5/16″. The two longer screws are intended for use in the front holes (near the motors) if you are also mounting a sumo blade; otherwise, you can use the shorter 1/4″ screws for all four mounting holes.
If you are also adding a basic sumo blade, you can either mount it now or add it later after you are done soldering the motors and battery contacts. ('''Note:''' If you intend to solder anything to the front expansion area of the shield, such as a Zumo reflectance sensor array, you will have more room to work if you do the soldering before adding the sumo blade.)
{{ambox|text=There is a small chance the mounting tabs of the blade can cause shorts where it contacts the shield if the PCB solder mask is not thick enough, so we recommend adding some electrical tape or other insulating material between the blade and shield.}}
To install the blade, first bend its mounting tabs to the appropriate angle. Next, place them on top of the shield so that the holes line up with the two front mounting holes and insert the two longer (5/16″) #2-56 machine screws (included with the shield) through the blade, shield, spacer plate, and chassis. Be careful when adjusting the angle of the sumo blade while it is mounted to the chassis, as this can crack the acrylic spacer plate if you apply sudden or excessive force. We recommend you do not try bending the blade while it is mounted to the chassis.
{{POLImage|Pololu-Zumo-Shield-Arduino-assembler-shield-42.jpg|350px|Shield placé au dessus du châssis Zumo}}
* Solder each motor lead to the shield, then trim off the excess length of wire.
{{POLImage|Pololu-Zumo-Shield-Arduino-assembler-shield-41.jpg|350px|Moteurs soudés sur le Zumo Shield}}
== Contacts des piles ==
* Turn the chassis over and install the battery terminal contacts as shown in the picture below. The three double-contact pieces should be firmly pressed into place until they are flush with the interior surface of the battery compartment. The two individual contacts should be inserted into the battery compartment so that their solder tabs protrude through the holes in the top of the chassis; you might want to temporarily tape these two individual contacts in place until they have been soldered to the shield as described in the next step, or you can use a battery to temporarily hold them in place.
{{POLImage|Pololu-Zumo-Shield-Arduino-assembler-shield-50.jpg|350px|Ajouter les connecteurs des piles sur le châssis et les piles}}
{{Pololu-Zumo-Shield-Arduino-TRAILER}}
{{Pololu-Zumo-Shield-Arduino-TRAILER}}