Domestic Drive Way Carwash

This instructables is to build draft for a car wash that would fit in the parameters of a average domestic driveway. This project was ultimately scaled down for 18 feet to 18 inches (1:12). The materials listed below are used to create the parts for the project.

The following are a list of parts and materials that are used to complete to construct the carwash:

1.a Stroke Micro Linear Actuator 12V (1-2" stroke length) [P1-A]

1.b Linear Actuator Connectors [P1-B]

1. c Linear Actuator Base To Pipe Connector [P1-C]

1.d ABS Cylindrical Pieces (Connection to Motor Shaft) [P1-D]

1.e Aluminum Chanel [P1-E]

2. Plastic Hinge with Holes, Polyolefin Plastic 1" x1-1/2" Door Leaf (Black) [P2]

3. Raspberry Pi 4 [P3]

4. Raspberry Pi Power Supply 5V 3A (Micro USB) [P4]

5 ABS Plastic Sheet 12''x12'' [P5]

5. a. ABS Plastic: Back Piece (11'' Piece) [P5-A]

5. b. ABS Plastic: Side Pieces (9'' Pieces) x 4 [P5-B]

5. c. ABS Plastic Triangular (2'' Pieces) [P5-C]

6. Bolt with Nut Kit 1/3 to 1-3/4" (PK 18) [P6]

7. 1/2" x 10 ft Copper Type L Pipe [P7]

8.a . Compact Square-Face DC Gearmotor [P8-A]

8.b. Stainless Steel Worm/Hose Clamp (Linear Actuator Connector To Pipe Connector) [P1-D]

9.1/2 in. Case Hardened Steel Self Drilling Tapping Screw (BX 100) [P9]

10. 1/2 in. Copper. C x C Short Radius 45 degree elbow (BX 4) [P10]

11. 1/2 in. Copper Pressure Tube Cap Fitting [P11]

12. 1/2 in. PVC Pipe Thread x Hose Thread Conversion Elbow [P12]

13. Piping Cement [P13]

14. Motor Box Pieces (ABS) [P14]

15. Flat Head Machine Screws [P15]

16. Epoxy

The Equipment needed for this product is as follows:

1. Alan Wrench

2. Screw Driver/Power Drill

3. Standard Garden Hose

4. Welding Kit

5. 3D Printer (with ABS Material)

Parts Need:

[P5]: ABS Plastic Sheet 12''x12''

[P7]: 1/2" x 10 ft Copper Type L Pipe

[P10]: 1/2 in. Copper. C x C Short Radius 45-degree elbow (BX 4)

[P11]: 1/2 in. Copper Pressure Tube Cap Fitting

[P12]: 1/2 in. PVC Pipe Thread x Hose Thread Conversion Elbow [P12]

Build:

Using the CAD drawings above, cut out the pieces from the [P5] to make the body. For the piping, cut out pieces from [P7] according to the CAD drawing. After cutting out the pieces, solder the pieces together.

Parts Needed:

[P5-A]: 11 inch by 1.5 inch ABS Plastic

[P5-B]: 9 inch by 1.5 inch ABS Plastic (2)

[P9]: 1/2 in. Case Hardened Steel Self Drilling Tapping Screw (6)

Assemble:

Using the 11 inch by 1.5 inch of ABS Plastic [P5-A], mount two of the 9 inch by 1.5 inch pieces of ABS [P5-B] on each side with the milled sides facing inward (as seen in picture). These parts will be mounted together using two screws [P9] on the outside of each piece. This new piece created will be referred to as [N-P1]

Parts Needed:

Piece From Step 2 [N-P1]

[P2]: Plastic Hinge with Holes, Polyolefin Plastic 1" x1-1/2" Door Leaf (Black)

[P5-C]: 2 inch by 1.5 inch ABS Plastic (2)

[P9]: 1/2 in. Case Hardened Steel Self Drilling Tapping Screw (4)

Assemble:

Using the part assembled in the previous [N-P1], attach two of the 2-inch by 1.5-inch triangular pieces of ABS plastic [P5-C] using a plastic hinge with holes [P2]. These pieces will be attached with two screws [P9] on each side.

Parts Needed:

Assembled piece From Step 3 [N-P2]

[P5-B] 9-inch by 1.5 inch ABS Plastic (2)

[P9]: 1/2 in. Case Hardened Steel Self Drilling Tapping Screw (4)

Assemble:

Using the part assembled in step 2 [N-P2], attach the last two of the 9 in by 1.5 in pieces of ABS plastic [P5-C] to hinges with on the other side of the triangular pieces on the assembled piece [N-P2]. These pieces will be attached with another two screws [P9] on each side. This assembled piece will now be referred to as [N-P3]

Parts Needed:

3D Printer

ABS

[P8]: Compact Square-Face DC Gear Motor x 2

[P14] Motor Box Pieces (ABS) x 4

[P15] Flat Head Machine Screws [P15]

Assemble:

Create Motor Base and Motor Base Cover using the attached Drawings and print them out. Motor Base Cover sits on the underside and allows for the wiring of the motor to come out the back. Motor Base snaps to the top of Motor Base Cover forming a seal and allowing for the shaft to protrude out the front.

Using the two pieces of 3D printed ABS plastic [P14], construct a box around each of the compact gear motors [P8] leaving the shaft exposed. In the end, each of the gear motors should be covered by the ABS Boxes with only the shafts outward to prevent water damage. The screws that can with the motors were removed and replaced with the Flat Head Machine Screws [P15] to connect to the ABS plastic motor box pieces [P14] via the drilled holes. These assembled parts will be known as NG-P1.

(The encased motors can be seen in step 8 and on)

Parts Needed:

Assembled Compact Gear Motors from step [NG-P1] x 2
ABS Printed Cylindrical Plastic Connectors [2] [P1-D] Metal Bracket [P1-E]

1/2 in. Case Hardened Steel Self Drilling Tapping Screw (BX 100) [P9]

Stroke Micro Linear Actuator 12V (1-2" stroke length) [P1-A]

2-part Epoxy [P16]

Assemble:

Using the assembled unit [NG-P1], attach the connectors to the shaft of the motor as shown in the figure by lining the inside with the 2-part Epoxy (mixed).

Allow 24 hours to fully cure.
Once set, screw the 1/2 in. self-tapping screw [P9] through the linear actuator connector and into the tip of the printed connector.

Connect the linear actuator [P1-A] to the linear actuator connector [P1-B] with the original hardware included on the top and bottom.

Repeat steps for the opposite side.

The Assembly will be known as NG-P2

Parts Needed:

Assembled Piece From Step 6 [NG-P2]

[P1-C] Linear Actuator Base To Pipe Connector
[P1-D] Linear Actuator Connector To Pipe Connector

Assemble:

Screw the Linear actuator base to pipe connector to the top of the linear actuator. Then screw the Linear Actuator Connector to Pipe Connector into the pipe connector. This new assembly will be known as [NG-P3].

Parts Needed:

Assembled Piece From Step 7 [NG-P3]

[P13]: Piping Cement
[P12]: 1/2 in. PVC Pipe Thread x Hose Thread Conversion Elbow

Assemble:

Slide the copper pipe through the connectors that are on each side. Place the piping cement to Linear Actuator connector pipe connector connection (on assembly [NG-P3]) by placing it above the connector, then sliding the pipe through.

Parts Needed:

[P10] 1/2 in. Copper. C x C Short Radius 90 degree elbow (BX 5)

[P11] 1/2 in. Copper Pressure Tube Cap Fitting

Assemble:

Weld the 1/2 in. Copper. C x C Short Radius 90 degree elbow (BX 5) [P10] and the 1/2 in. Copper Pressure Tube Cap Fitting [P11] to the bottom of the copper pipe. This is conducted by soldering the pipe.

Parts Needed:

[P3] Raspberry Pi 4

[P4] Kungber DC Power Supply

[P16] 2 - L298 Dual H-Bridge Motor

[P17] 22-Gauge Wire

[P18] Time of Flight Sensor

Assemble:

1st Dual H-Bridge:

Insert the wire into B on the red side, then solder the wire to the motor's ground end. Then insert the wire into A on the red side, then solder the wire to the positive end of the motor. Next for the green side, insert a wire into the A-side and solder it to the ground of the linear actuator. Then insert the wire into B on the green side, then solder the wire to the positive end of the linear actuator.

Then attach wires from EB to GPIO 8, I4 to GPIO 7, and I3 to GPIO 1 for the motor. For the linear actuator attach wires from EA to GPIO 26, I2 to GPIO 5, and I1 to GPIO 6.

Insert a wire into the VHS slot to the positive side of the [P4]. Put two wires into the GND slot, one to a ground on the [P3] and one to the ground on the [P4]. Then put a wire into the +5v to a 5v slot on the [P3].

2nd Dual H-Bridge:

Insert the wire into A on the green side, then solder the wire to the motor's ground end. Then insert the wire into B on the green side, then solder the wire to the motor's positive end. Next for the red side, insert a wire into the B side and solder it to the ground of the linear actuator. Then insert the wire into A on the red side, then solder the wire to the positive end of the linear actuator.

Then attach wires from EA to GPIO 17, I2 to GPIO 27, and I1 to GPIO 22 for the motor. For the linear actuator attach wires from EB to GPIO 14, I4 to GPIO 15, and I3 to GPIO 18.

Insert a wire into the VHS slot to the positive side of the [P4]. Put two wires into the GND slot, one to the ground on the [P3] and one to the ground on the [P4]. Then put a wire into the +5v to a 5v slot on the [P3].

Time of Flight Sensor:

Run wires from the [P18] VIN to 5v, GND to a GND, SCL to GPIO 2, and SCL to GPIO 3. Then attach the [P18] on to the top of the pipe facing down.

Go to this link for the code for the Raspberry Pi 4:

https://github.com/jvanherw/carwash.git

Follow the instructions in the read me file to be able to use the code.