Stratasys uPrint Retrofit - Revision history

AJ Quick: /* Reading Limit Switch States */

2020-04-24T03:17:25Z

‎Reading Limit Switch States

AJ Quick: /* Controlled Shutdown */

2020-04-24T03:13:02Z

‎Controlled Shutdown

AJ Quick: /* Controlled Shutdown */

2020-04-24T03:12:34Z

‎Controlled Shutdown

AJ Quick: /* Enabling Power to the Printer */

2020-04-24T03:12:19Z

‎Enabling Power to the Printer

AJ Quick: /* Enabling Power to the Printer */

2020-04-24T02:47:38Z

‎Enabling Power to the Printer

AJ Quick at 00:11, April 24, 2020

2020-04-24T00:11:51Z

AJ Quick: /* J15 */

2020-04-23T17:55:19Z

‎J15

AJ Quick: /* Toggle Head Board */

2020-04-23T03:01:09Z

‎Toggle Head Board

AJ Quick: /* Reading Thermocouple Temperatures */

2020-04-23T02:58:50Z

‎Reading Thermocouple Temperatures

AJ Quick: /* Reading Thermocouple Temperatures */

2020-04-23T02:58:36Z

‎Reading Thermocouple Temperatures

← Older revision		Revision as of 03:17, April 24, 2020
Line 277:		Line 277:

	Pin 8: Print Bed Touch Sensor		Pin 8: Print Bed Touch Sensor
		+
		+	Pin 15: Print Bed Touch Sensor Power Enable
		+
		+	The Print Bed touch sensor is slightly different from any of the other limit switches. It has the ability to be turned on and off based on Pin #15 on J15. This is because the print bed touch sensor has two functions, it detects when the probe is stowed and when the probe is touching the print bed. It may be useful to disable the power to the print bed touch probe when not in use.

	=== Operating Door Lock and LED Lighting ===		=== Operating Door Lock and LED Lighting ===

@@ Line 59: / Line 59: @@
 # The printer cools down to below a safe threshold. Typically 100 degrees Celsius on the extruders and 50 degrees Celsius on the chamber temperature.
 # Once the temperature is below the safe threshold, is is now safe for the printer to turn off the relay that is keeping power to the printer (#21 on PDB J15).
 If for any reason the power switch is turned back on while the printer is cooling down, the printer can resume to a stand by position.

@@ Line 47: / Line 47: @@
 # The print head should be stowed in the far left corner of the printer.
 # The printer waits for the print to be cancelled, or waits for the power switch to be turned back on.
 '''Shutdown Procedure (when possible)'''

← Older revision		Revision as of 03:12, April 24, 2020
Line 20:		Line 20:

	'''NOTE:''' The power enable signal on Pin #16 of PDB Connector J15 is not a logic level signal. It must be a higher amperage power level signal.		'''NOTE:''' The power enable signal on Pin #16 of PDB Connector J15 is not a logic level signal. It must be a higher amperage power level signal.
		+
		+	=== Controlled Shutdown ===
		+
		+	The uPrint is capable of handling the shut down of the printer in a controller manner. When power is applied, the mains voltage flows through the On/Off power switch. However once the external controller has control over the [[#Power_Distribution_Board_.28PDB.29\|Power Distribution Board]] it can keep the printer powered on through an on-board relay. The On/Off position of the power switch becomes irrelevant.
		+
		+	It is very easy to control these functions through connector [[#J15\|J15]] on the [[#Power_Distribution_Board_.28PDB.29\|PDB]]
		+
		+	'''Connector J15'''
		+
		+	Pin 21: Power Supply Enable (Off = 0V, On = 5V)
		+
		+	Pin 23: Power Switch Status (Off = 0V, On = 5V)
		+
		+	A standard procedure would be to enable the power to the power supply once the controller has control of the system. The controller should monitor the status of the power switch. If the power switch goes to off, the printer should begin a shutdown procedure if it is safe to do so. If the printer is in the middle of a print, the printer should go into a pause procedure and wait for the print to be cancelled or for the power switch to be turned back on. Examples of the pause and shut down procedures are given below.
		+
		+	'''Pause Procedure (during printing)'''
		+
		+	# The printer is in the middle of a print.
		+	# The operator switches the Power Switch to Off.
		+	# The printer finishes executing the current line of G-Code.
		+	# The filament is retracted slightly.
		+	# The print bed lowers by a small amount.
		+	# The print head moves to the tip cleaning position.
		+	# The print head cleans the print head.
		+	# If in support mode, the printer should switch to the model mode.
		+	# The print head should be stowed in the far left corner of the printer.
		+	# The printer waits for the print to be cancelled, or waits for the power switch to be turned back on.
		+
		+	'''Shutdown Procedure (when possible)'''
		+
		+	# If the printer is not in the middle of print or any other procedure.
		+	# The operator switches the Power Switch to Off.
		+	# The printer initiates a shut down procedure.
		+	# The cooling fans are enabled and all heaters are turned to off.
		+	# The print head should be positioned into a safe home position (left rear of printer) and the print bed lowered all the way down.
		+	# The Power Enable Pin (#16 on PDB J15) should be disabled.
		+	# The printer cools down to below a safe threshold. Typically 100 degrees Celsius on the extruders and 50 degrees Celsius on the chamber temperature.
		+	# Once the temperature is below the safe threshold, is is now safe for the printer to turn off the relay that is keeping power to the printer (#21 on PDB J15).
		+
		+	If for any reason the power switch is turned back on while the printer is cooling down, the printer can resume to a stand by position.

	=== Controlling Stepper Motors ===		=== Controlling Stepper Motors ===

@@ Line 5: / Line 5: @@
 === Enabling Power to the Printer ===
-How to.
+With no control system connected to the uPrint, the uPrint is in a safe state where it will automatically be in a standby state. No heaters will be on, no motors will be moving and the main fans will be operating to cool down the printer. Upon turning on the printer, all output pins should be low and all input pins should be correctly configured to accept input logic signals. It is recommended to add an interface between the I/O of the printer and the control board that can disconnect the signals, such as a [http://www.ti.com/lit/ds/symlink/txs0108e.pdf TXS0108E Bi-Directional Logic Level Shifter]. This type of device is capable of configuring all input and output signals and only making the connection once the controller board is ready. The printer can sit in standby without a controller connected until the time comes that it is ready to connect.
 === Controlling Stepper Motors ===

← Older revision		Revision as of 00:11, April 24, 2020
Line 1:		Line 1:
		+	[[File: Stratasys uPrint SE Plus.jpg\|thumb\|Stratasys uPrint SE Plus]]
		+
		+	{{clear}}
		+
		+	=== Enabling Power to the Printer ===
		+
		+	How to.
		+
	=== Controlling Stepper Motors ===		=== Controlling Stepper Motors ===

@@ Line 549: / Line 549: @@
 | 14 || Door Switch
 |-
-| 15 || Input from U6 (UMB2 J506 Pin #2, Substrate Z, Probe Power?)
+| 15 || Print Bed Touch Probe Power Enable (Off = 0V, On = 5V)
 |-
 | 16 || Power Enable (NOT A LOGIC LEVEL SIGNAL, REQUIRES +5V = On, Ground = Off)

← Older revision		Revision as of 03:01, April 23, 2020
Line 883:		Line 883:

	=== Toggle Head Board ===		=== Toggle Head Board ===
		+
		+	The Toggle Head Board is located in the print chamber and is attached to the front of the Y-Axis carriage. The version for the uPrint is shown below. The uPrint SE had a slightly upgraded board that added visual LEDs that light up when the extruder heaters are active.

	[[File: Stratasys Toggle Head Board.jpg\|600px]]		[[File: Stratasys Toggle Head Board.jpg\|600px]]

@@ Line 143: / Line 143: @@
 | 1000 0000 0000 || 2.5V || 56.0 degrees C || 216.0 degrees C
 |-
-| 1111 1111 1111 || 5V || 90.0 degrees C || 345 degrees C
+| 1111 1111 1111 || 5V || 90.0 degrees C || 345.0 degrees C
 |}

@@ Line 123: / Line 123: @@
 This analog voltage can also be read on the PDB on [[#J13|J13]] pins 35 (model extuder), pin 37 (support extruder) and pin 39 (chamber temperature). The easiest way to read these temperatures is to read them with a 12-Bit Analog to Digital converter such as the [https://ww1.microchip.com/downloads/en/DeviceDoc/21298c.pdf Microchip MCP3204]. This chip is capable of sending the voltage data over SPI bus to be read by a common controller card such as Duet or an Arduino. One MCP3204 is capable of reading four different data channels, which is more than adequate for the uPrint's three thermocouples.
-The temperature range for the 12-Bit SPI data is believed to be from 85 degrees Celsius to 345 degrees Celsius for the extruders and a range from 22 to 90 on the chamber. An example of the SPI data that is expected can be seen in the following table:
+The temperature range for the 12-Bit SPI data is believed to be from 87 degrees Celsius to 345 degrees Celsius for the extruders and a range from 22 to 90 on the chamber. An example of the SPI data that is expected can be seen in the following table:
 {| class="wikitable"
 |-
-! SPI Binary Data !! Input Voltage !! Temperature
+! SPI Binary Data !! Input Voltage !! Chamber Temp || Extruder Temp
 |-
-| 0000 0000 0000 || 0.00V || 22.0 degrees C
+| 0000 0000 0000 || 0.00V || 22.0 degrees C || 87.0 degrees C
 |-
-| 0000 0000 1000 || 0.01V || 22.1 degrees C
+| 0000 0000 1000 || 0.01V || 22.1 degrees C || 87.5 degrees C
 |-
-| 0000 1000 0000 || 0.16V || 24.1 degrees C
+| 0000 1000 0000 || 0.16V || 24.1 degrees C || 95.3 degrees C
 |-
-| 0001 0000 0000 || 0.31V || 26.2 degrees C
+| 0001 0000 0000 || 0.31V || 26.2 degrees C || 103.0 degrees C
 |-
-| 0010 0000 0000 || 0.63V || 30.5 degrees C
+| 0010 0000 0000 || 0.63V || 30.5 degrees C || 119.5 degrees C
 |-
-| 0100 0000 0000 || 1.25V || 39.0 degrees C
+| 0100 0000 0000 || 1.25V || 39.0 degrees C || 151.5 degrees C
 |-
-| 1000 0000 0000 || 2.5V || 56.0 degrees C
+| 1000 0000 0000 || 2.5V || 56.0 degrees C || 216.0 degrees C
 |-
-| 1111 1111 1111 || 5V || 90.0 degrees C
+| 1111 1111 1111 || 5V || 90.0 degrees C || 345 degrees C
 |}