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drunken-octopus / drunken-octopus-marlin

An Alternative (Unofficial) Marlin Firmware for AlephObjects Printers
GNU General Public License v3.0
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TAZ 6 Aerostruder E-steps should default to 420, not 830 #20

Closed b-morgan closed 4 years ago

b-morgan commented 4 years ago

Description

In rc18, the firmware for the Angelfish_Aerostruder defaults to E-steps (M92) of 830. In the last version of LulzBot firmware (1.1.9.34), the Aerostruder has an E-steps of 420. Unlike the Single Extruders (and the Dual Extruders V2, and V3) which are delivered with a E-steps sticker, the Aerostruder tolerances are tight enough that 420 is a good starting point for all of them.

Steps to Reproduce

  1. Load Aerostruder firmware.
  2. Heat the nozzle.
  3. Load filament and mark at 20mm increments.
  4. Extrude 10mm of filament.

Expected behavior: [What you expect to happen]

10mm of filament should be extruded (i.e. half way to the first mark).

Actual behavior: [What actually happens]

Almost 20mm of filament is extruded.

Additional Information

It might be worth comparing the LulzBot 1.1.9.34 .config files in http://devel.lulzbot.com/software/Marlin/1.1.9.34/ and setting better default E-steps for the other Aerostruder (or all?) toolheads. I think all the E3D based toolheads might need inspecting.

marciot commented 4 years ago

@b-morgan: The default is 420. When you flash new firmware, you need to "Reset to Factory Settings", otherwise it will take whatever E-steps were stored in the EEPROM, which will correspond to what ever toolhead you had before.