Baseball - Revision history

Lynch: /* Bat */

2008-03-23T20:10:25Z

Bat

← Older revision		Revision as of 15:10, 23 March 2008
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	The Bat was fashioned out of wood on the band saw and sanded to a finish. Two holes were drilled: one to act as an anchoring pivot point and the other to be attached to an actuator. A [http://www.goldmine-elec-products.com/prodinfo.asp?number=G16036 Spring Return Solenoid], run on two 9.6V rechargeable batteries in series, was used to actuate the bat. The user interface was a simple push button usually stocked in the lab. This button was located on the right side of the game similar to where pinball buttons are located.		The Bat was fashioned out of wood on the band saw and sanded to a finish. Two holes were drilled: one to act as an anchoring pivot point and the other to be attached to an actuator. A [http://www.goldmine-elec-products.com/prodinfo.asp?number=G16036 Spring Return Solenoid], run on two 9.6V rechargeable batteries in series, was used to actuate the bat. The user interface was a simple push button usually stocked in the lab. This button was located on the right side of the game similar to where pinball buttons are located.

	In order to make the game more like baseball we set up a system to only allow the user to swing ~~during~~ a pitched ball. To learn more about this look below to '''Bat Relay'''.		In order to make the game more like baseball we set up a system to only allow the user to swing once per pitched ball. To learn more about this look below to '''Bat Relay'''.

Lynch: /* Bat */

2008-03-23T20:09:44Z

Bat

← Older revision		Revision as of 15:09, 23 March 2008
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	===Bat===		===Bat===

	The Bat was fashioned out of wood on the band saw and sanded to a finish. Two holes were drilled: one to act as an anchoring pivot point and the other to be attached to an actuator. A [http://www.goldmine-elec-products.com/prodinfo.asp?number=G16036 Spring Return Solenoid], run on two 9.6V rechargeable batteries, was used to actuate the bat. The user interface was a simple push button usually stocked in the lab. This button was located on the right side of the game similar to where pinball buttons are located.		The Bat was fashioned out of wood on the band saw and sanded to a finish. Two holes were drilled: one to act as an anchoring pivot point and the other to be attached to an actuator. A [http://www.goldmine-elec-products.com/prodinfo.asp?number=G16036 Spring Return Solenoid], run on two 9.6V rechargeable batteries in series, was used to actuate the bat. The user interface was a simple push button usually stocked in the lab. This button was located on the right side of the game similar to where pinball buttons are located.

	In order to make the game more like baseball we set up a system to only allow the user to swing during a pitched ball. To learn more about this look below to '''Bat Relay'''.		In order to make the game more like baseball we set up a system to only allow the user to swing during a pitched ball. To learn more about this look below to '''Bat Relay'''.

JeremyKlem: /* Circuit Diagram */

2008-03-20T23:46:53Z

Circuit Diagram

← Older revision		Revision as of 18:46, 20 March 2008
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	Seven Segment Display		Seven Segment Display
	[[image:CircuitDiag.jpg\|thumb\|300px\|[Circuit diagram for the 7-segment display circuit]\|left]]		[[image:CircuitDiag.jpg\|thumb\|300px\|Circuit diagram for the 7-segment display circuit\|left]]
	<br clear=all>		<br clear=all>

JeremyKlem: /* Circuit Diagram */

2008-03-20T23:46:23Z

Circuit Diagram

← Older revision		Revision as of 18:46, 20 March 2008
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	LED Circuit		LED Circuit
	[[Image:baseball_LED_circuitry.jpg\|left\|Example of LED Circuit\|thumb\|300px]]		[[Image:baseball_LED_circuitry.jpg\|left\|Example of LED Circuit\|thumb\|300px]]
			<br clear=all>

			Seven Segment Display
			[[image:CircuitDiag.jpg\|thumb\|300px\|[Circuit diagram for the 7-segment display circuit]\|left]]
	<br clear=all>		<br clear=all>

JeremyKlem: /* PIC Schematic */

2008-03-20T23:38:47Z

PIC Schematic

← Older revision		Revision as of 18:38, 20 March 2008
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	===PIC Schematic===		===PIC Schematic===

			[[Image:Baseball_PIC_Circuitry.jpg\|left\|The PIC Circuit\|thumb\|300px]]
			<br clear=all>

	===Circuit Diagram===		===Circuit Diagram===

JeremyKlem: /* Play Field and Housing */

2008-03-20T23:16:39Z

Play Field and Housing

← Older revision		Revision as of 18:16, 20 March 2008
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	===Play Field and Housing===		===Play Field and Housing===

	<table border="1" width="35%">
	<tr>
	<td width="17.5%">
	<p><font size="-1"><b>Part</b></font></p>
	</td>
	<td width="17.5%">
	<p><font size="-1"><b>Quantity</b></font></p>
	</td>
	</tr>
	<tr>
	<td width="17.5%">
	<p><font size="-1">Plywood</font></p>
	</td>
	<td width="17.5%">
	<p><font size="-1">~8ft<sup>2</sup></font></p>
	</td>
	</tr><tr>
	<td width="17.5%">
	<p><font size="-1">Wood Screws</font></p>
	</td>
	<td width="17.5%">
	<p><font size="-1">21</font></p>
	</td>
	</tr><tr>
	<td width="17.5%">
	<p><font size="-1">Set Screws</font></p>
	</td>
	<td width="17.5%">
	<p><font size="-1">10</font></p>
	</td>
	</tr><tr>
	<td width="17.5%">
	<p><font size="-1">Acrylic Board</font></p>
	</td>
	<td width="17.5%">
	<p><font size="-1">~3ft<sup>2</sup></font></p>
	</td>
	</tr>
	</table><br/>
	<br clear=all>
	The general concept is to have a slanted surface similar to a pinball machine. The ball will roll down and the user will try to hit it back up into a single, double, triple or homerun. These "hits" have dampening backstops and milled down grooves to channel the ball into a hole where a sensor is placed. If none of these are hit then the ball rolls back down towards the bat and into an out hole. This was done to limit the number of holes and sensor we would need to create. There are rails along the play field so the ball will not fly off. Underneath, there is a recess, which is an oppositely slanted board to channel the ball back to the pitching apparatus. The housing has sides to mount the bat button and keep the ball from sliding out of the recess. A acrylic sheet was used to wrap around the back as the rear wall. Holes were cut to allow pitching and scoreboard display.		The general concept is to have a slanted surface similar to a pinball machine. The ball will roll down and the user will try to hit it back up into a single, double, triple or homerun. These "hits" have dampening backstops and milled down grooves to channel the ball into a hole where a sensor is placed. If none of these are hit then the ball rolls back down towards the bat and into an out hole. This was done to limit the number of holes and sensor we would need to create. There are rails along the play field so the ball will not fly off. Underneath, there is a recess, which is an oppositely slanted board to channel the ball back to the pitching apparatus. The housing has sides to mount the bat button and keep the ball from sliding out of the recess. A acrylic sheet was used to wrap around the back as the rear wall. Holes were cut to allow pitching and scoreboard display.

JeremyKlem: /* Circuit Diagram */

2008-03-20T23:14:38Z

Circuit Diagram

← Older revision		Revision as of 18:14, 20 March 2008
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	===Circuit Diagram===		===Circuit Diagram===

			Sensor
			[[Image:baseball_sensor_circuitry.jpg\|left\|Example of Sensor Circuit\|thumb\|300px]]
			<br clear=all>

			Pitcher and Bat
			[[Image:baseball_pitcher_bat_circuitry.jpg\|left\|Pitcher and Bat Circuit\|thumb\|300px]]
			<br clear=all>

			LED Circuit
			[[Image:baseball_LED_circuitry.jpg\|left\|Example of LED Circuit\|thumb\|300px]]
			<br clear=all>

	===Photodiode/Phototransistor Sensor===		===Photodiode/Phototransistor Sensor===

JeremyKlem: /* Bat Relay & Power Supplies */

2008-03-20T22:21:47Z

Bat Relay & Power Supplies

← Older revision		Revision as of 17:21, 20 March 2008
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	===Bat Relay & Power Supplies===		===Bat Relay & Power Supplies===
	In order to power our solenoid and motor we needed external power. We used the 9.6V rechargeable batteries found in the lab kits. The first battery is permanently connected to the pitching motor as well as in series with the second battery. The two batteries in series are connected to the solenoid via a relay. When the PIC sends a high pulse to activate the coil the user can then activate the solenoid with the bat button. The PIC only sends a .5 second pulse, which is a little more time then is needed to pitch the ball. The PIC is activated to send this pulse when the pitching arm hits the lever switch located on the stopping bar in the back of the game (See pitching above).		In order to power our solenoid and motor we needed external power. We used the 9.6V rechargeable batteries found in the lab kits. The first battery is permanently connected to the pitching motor as well as in series with the second battery. The two batteries in series are connected to the solenoid via a [http://pdf1.alldatasheet.com/datasheet-pdf/view/105974/ETC/RSB5S.html RSB52 relay]. When the PIC sends a high pulse to activate the coil the user can then activate the solenoid with the bat button. The PIC only sends a .5 second pulse, which is a little more time then is needed to pitch the ball. The PIC is activated to send this pulse when the pitching arm hits the lever switch located on the stopping bar in the back of the game (See pitching above).

	Ideally, when the pitch button is activated it will turn the arm upwards and both activate the switch and pitch the ball. The relay will come on allowing the player to complete the loop on the solenoid with the bat button. Once the half second delay ends the relay closes, which means the user can no longer activate the bat. This way only one swing is allowed per pitch.		Ideally, when the pitch button is activated it will turn the arm upwards and both activate the switch and pitch the ball. The relay will come on allowing the player to complete the loop on the solenoid with the bat button. Once the half second delay ends the relay closes, which means the user can no longer activate the bat. This way only one swing is allowed per pitch.

JeremyKlem: /* Photodiode/Phototransistor Sensor */

2008-03-20T22:20:00Z

Photodiode/Phototransistor Sensor

← Older revision		Revision as of 17:20, 20 March 2008
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	===Photodiode/Phototransistor Sensor===		===Photodiode/Phototransistor Sensor===

	An IR optical sensor was used to detect the ball falling through a hole.		An IR optical sensor was used to detect the ball falling through a hole. The transistor will be receive a large amount of infrared radiation constantly, until a ball falls through. The obstruction will send a pulse to the PIC and either an out, single, double, triple or homerun will be executed.

JeremyKlem: /* Pitcher */

2008-03-20T22:18:26Z

Pitcher

← Older revision		Revision as of 17:18, 20 March 2008
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	===Pitcher===		===Pitcher===
	To actuate the ball up to a position to be "pitched" a [http://www.trossenrobotics.com/store/p/5145-RS-385-Motor-7-2V.aspx motor] and scooping arm were used. The motor was hooked up to a 9.6V battery found in the kits. Once activated the arm turns upwards until hitting a static bar. Attached to the bar is a lever switch which sends a pulse to the PIC telling it that a pitch has been thrown. The momentum of the ball would shoot it out of the scoop where a curved ramp would project it onto the play field. The motor is attached to a simple push button so another player can pitch creating a more interactive game. The arm, bar and ramp were made out of scrap sheet metal found in the machine shop.		To actuate the ball up to a position to be "pitched" a [http://www.trossenrobotics.com/store/p/5145-RS-385-Motor-7-2V.aspx RS385 motor] and scooping arm were used. The motor was hooked up to a 9.6V battery found in the kits. Once activated the arm turns upwards until hitting a static bar. Attached to the bar is a lever switch which sends a pulse to the PIC telling it that a pitch has been thrown. The momentum of the ball would shoot it out of the scoop where a curved ramp would project it onto the play field. The motor is attached to a simple push button so another player can pitch creating a more interactive game. The arm, bar and ramp were made out of scrap sheet metal found in the machine shop.