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Step 4Preparing the deck, motor, and driveshaft
1. Now cut the material you have for the deck (plywood, or something light and easy to puncture, but durable enough to last) into a shape that will fit on the hull. Then puncture a few holes in the deck as shown in the image below. Then cut a slit at the back end of the deck where your driveshaft will go through.
2. Look at the plywood deck and the drilled holes. The holes are used to secure the motor clip to the deck. You may attach your motor mount at any of these points except the slit at the back end of the deck. Place your foam hull under the plywood deck, securing it with one or two strips of double-sided tape. Be sure that the slit at the back of the deck is unobstructed because your driveshaft must slide through this hole to get to the water!
NOTE : You can bypass the hole cutting (except the slit at the edge of the deck) by hot gluing the motor clip to the deck. If you do this, ignore step 3. If you choose to hot glue the motor mount, and want to attach a rudder to the bottom of the hull, you will have to find a different way to attach the rudder to the hull, since there will be no screw end sticking out the bottom.
3. Using the screw, attach the motor clip to any of the mounting holes you created. If you can, drive the screw straight through the hull so it sticks out the bottom. This can serve as your rudder mount. As you screw down on the motor clip, the clip will tighten and change shape. Test your motor in the clip as you tighten to make sure it fits securely. If it does not fit, slide some paper or other material inside to make it snug.
4. Push a 1" piece of rubber tubing onto the driveshaft of the DC motor. Do not push the rubber tubing all the way to the bottom of the driveshaft, or it can drag on the motor and slow down.
NOTE : If you cannot find 1/8" diameter tubing, try to find a material that will connect to both the driveshaft of the motor and the driveshaft you will attach to the propeller. It will have to be able to bend and spin around with the motor while mostly staying in place.
5. Find a material to make a propeller and attach it to your 4 " steel driveshaft. You can seach google for a variety of small propellers.
6. Slide the other side of the driveshaft up through the slit in the back of the deck (make sure your propeller is facing down into the water). Fit the driveshaft with the propeller into the rubber tube you have attached to the motor. You will need to push and twist a little bit, but it is important that this is a tight connection.
7. Clip the motor into the clip and double-check that it fits tightly. If it is too loose, you can turn the screw to tighten the clip. If it is too tight and the motor does not fit, loosen the screw.
2. Look at the plywood deck and the drilled holes. The holes are used to secure the motor clip to the deck. You may attach your motor mount at any of these points except the slit at the back end of the deck. Place your foam hull under the plywood deck, securing it with one or two strips of double-sided tape. Be sure that the slit at the back of the deck is unobstructed because your driveshaft must slide through this hole to get to the water!
NOTE : You can bypass the hole cutting (except the slit at the edge of the deck) by hot gluing the motor clip to the deck. If you do this, ignore step 3. If you choose to hot glue the motor mount, and want to attach a rudder to the bottom of the hull, you will have to find a different way to attach the rudder to the hull, since there will be no screw end sticking out the bottom.
3. Using the screw, attach the motor clip to any of the mounting holes you created. If you can, drive the screw straight through the hull so it sticks out the bottom. This can serve as your rudder mount. As you screw down on the motor clip, the clip will tighten and change shape. Test your motor in the clip as you tighten to make sure it fits securely. If it does not fit, slide some paper or other material inside to make it snug.
4. Push a 1" piece of rubber tubing onto the driveshaft of the DC motor. Do not push the rubber tubing all the way to the bottom of the driveshaft, or it can drag on the motor and slow down.
NOTE : If you cannot find 1/8" diameter tubing, try to find a material that will connect to both the driveshaft of the motor and the driveshaft you will attach to the propeller. It will have to be able to bend and spin around with the motor while mostly staying in place.
5. Find a material to make a propeller and attach it to your 4 " steel driveshaft. You can seach google for a variety of small propellers.
6. Slide the other side of the driveshaft up through the slit in the back of the deck (make sure your propeller is facing down into the water). Fit the driveshaft with the propeller into the rubber tube you have attached to the motor. You will need to push and twist a little bit, but it is important that this is a tight connection.
7. Clip the motor into the clip and double-check that it fits tightly. If it is too loose, you can turn the screw to tighten the clip. If it is too tight and the motor does not fit, loosen the screw.
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