Differences

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--- stacker_s4:stacker_s4 [2020/06/23 04:11] – formlab
+++ stacker_s4:stacker_s4 [2021/02/24 02:48] (current) – formlab
@@ Line 4: / Line 4: @@
   * Max Build Volume: ''510x  360 x 600mm''
   * [[:Filament options]]
+  * [[:How much does FDM printing cost?]]
+  * [[stacker_s4:add_the_stacker_printer_to_cura]]
+  * [[stacker_s4:add_printer_profile_for_the_stacker_printer_in_cura]]
+===== Calibrate E-steps =====
+Run this calibration after changing filament brands and after a nozzle swap.
+=== Prepare the printer ===
+  * Remove the existing filament
+  * Clean the feeder gears with a toothbrush or brass brush
+  * insert new filament only a few centimeter into the Bowden tube.
+  * Close the latch of the feeder assembly
+  * measure 120mm of filament, from the entry point and mark with a line
+=== Connect Stacker to the computer ===
+(Tested on 24/02/21).
+  * Add usb-extension cables to the usb cable on the stacker, so it can reach the iMac.
+  * Connect the usb cable to the usb hub (renkforce). It doesn't work when connecting to the keyboard, or to the iMac directly.
+  * Open ''Repetier-host Mac''.
+  * Go to ''printer settings'' and select the ''Stacker S4'' profile.
+  * Check the following values:
+    * Baud Rate: 250000
+    * Stop Bits: 1
+    * Parity: None
+    * Transfer Protocol: Autodetect
+    * Receive Cache size: 127
+    * Timeout: 40ms
+    * Ping-pong communication (not checked)
+    * Firmware send OK after error (checked)
+  * Click connect
+  * Optionally: test the connection by enabling the fan at 100%
+=== Slowly extrude 100mm of filament ===
+   * In the print panel, enable ''Heat On''. (We will not extrude filament out of the nozzle, but the extrude command only works when the nozzle is hot. This is a safety feature).
+   * Set the extruder temperature to 200
+   * Set the extruder speed to 60mm / min.
+   * Set ''Extrude'' to 100mm
+   * Click extrude
+  * Measure to the mark to find out what was actually extruded. Take 120 and subtract the measured distance to find the actual length of extruded filament.
+    * For example, if you measure 5mm, you extruded 115mm of filament
+=== Change the EEPROM Steps Per mm ===
+  * In Repetier-Host, go to ''Printer > EEPROM Settings''
+  * Find the entry for ''Extr.1 steps per mm''. This is the current E-Steps value.
+  * To calculate the new E-STEPS number, use this formula: ''( 100mm ÷ How much filament was extruded) x ( Your current E-Steps ) = Your New E-Steps''.
+  * Update this value at the ''Extr.1 steps per mm'' EEPROM entry. It's immediately stored in the printer's memory.
+Run the extrusion test again (on a new part of the filament) to see if your changes result in 100mm extrusion.
+===== Pre-print checklist =====
+  * Minimal 2 wall lines.
+  * Check ''Z Seam Alignment'' (under Shell). Random might be nicest for objects without corners.
+  * Is there enough filament?
+  * Check the fan blip at the start.
 ----
-  * [[stacker_s4:add_the_stacker_printer_to_cura]]
-  * [[stacker_s4:add_printer_profile_for_the_stacker_printer_in_cura]]
@@ Line 17: / Line 81: @@
 Y = 366
-[[:How much does FDM printing cost?]]
 ===== Cold Pull =====