Newb: Can connect via cloud but not local/Can I upload gcode direct?

AstroBox Questions
#1

Hey all,

Just trying to get astroprint running on my lulzbot mini. Two issues I’m having:

  1. I can connect to my printer via the cloud but I cannot connect to it on my local network. I renamed the astrobox “Jim2386” but under the wifi hotspot it still comes up as “astrobox-3373”.

I’ve got them both connected to the same network and have tried “http://astrobox-3373.local” and “http://Jim2386.local” and both come back with a dns not found standard time warner cable webpage.

Any ideas what I could be doing wrong?

  1. Since I have the mini, I have auto bed leveling and nozzle cleaning. Both of these are written into specific gcode using Cura. Does astroprint gcode add bed leveling and nozzle cleaning or do I need to upload the cura gcode?

Thanks guys,
Jim

#2

Regarding connection, you probably need to reboot your box for the new name to take effect. Now, when you reboot your box after connecting it to your wifi, it will no longer start a hotspot. You would access your box by connecting to the same network and going to the .local address. More info here: https://astroprint.zendesk.com/hc/en-us/articles/202735855-I-can-t-reach-my-AstroBox-after-rebooting-it

Regarding the mini, did you pick the printer from the list on astroprint.com or created a custom printer? Lulzbot added start gcodes to their profile on our system that seem to include some of the things you mentioned.

#3

Nope. Restarted the box, no hotspot created, but the .local still doesn’t work. However, by going into astroprint via the cloud and clicking the control system in there, it takes me to the direct IP address to control the system, so at least I have a work around :smile:

As for the differences in the code, I exported the gcode via cura and via astroprint using the mini printer settings. Everything looks the same except for one line:

Astroprint gcode:

;Generated with Cura_SteamEngine
10.09
M104 S240
M140 S110
M109 S240
M190 S110

;This Gcode has been generated specifically for the LulzBot Mini
;Basic settings: Layer height: 0.18 Walls: 1 Fill: 20

;Filament Diameter: 2.85
;Nozzle Size: 0.5
G21 ; metric values
G90 ; absolute positioning
M82 ; set extruder to absolute mode
M107 ; start with the fan off
G92 E0 ; set extruder position to 0
M140 S110 ; get bed heating up
G28 ; home all
M109 S140 ; set to cleaning temp and wait
G1 Z150 E-30 F75 ; suck up XXmm of filament
M109 S140 ; heat up rest of way
G1 X45 Y174 F11520 ; move behind scraper
G1 Z0 F1200 ; CRITICAL: set Z to height of top of scraper
G1 X45 Y174 Z-.5 F4000 ; wiping ; plunge into wipe pad

Cura Gcode:

;This Gcode has been generated specifically for the LulzBot Mini
;Basic settings: Layer height: 0.18 Walls: 1 Fill: 20
;Filament Diameter: 2.85
;Nozzle Size: 0.5
G21 ; metric values
G90 ; absolute positioning
M82 ; set extruder to absolute mode
M107 ; start with the fan off
G92 E0 ; set extruder position to 0
M140 S110 ; get bed heating up
G28 ; home all
M109 S150 ; set to cleaning temp and wait
G1 Z150 E-30 F75 ; suck up XXmm of filament
M109 S170 ; heat up rest of way
G1 X45 Y174 F11520 ; move behind scraper
G1 Z0 F1200 ; CRITICAL: set Z to height of top of scraper
G1 X45 Y174 Z-.5 F4000 ; wiping ; plunge into wipe pad

It looks like, and I’m no gcode guru, that the astroprint adds a few lines of code at the beginning that randomly heats and cools the nozzle. It looks like that line of code is not necessary for the mini as the code from cura takes the correct nozzle temps into account for head cleaning etc. The correct code should heat the nozzle

Having the nozzle heat up to 240C before wiping allows ABS to “drool” a bit out of the nozzle. Why is this line of code different than cura? Should be be removed? I might try a print tonight taking the astroprint gcode and just remove those few lines and see if it works identically. I’m 99% sure that’s the issue with the astroprint code. It also looks like the heating up temps before the nozzle wipe aren’t the same even though both were set to ABS and fine print.

Not trying to poke holes or complain. This stuff is awesome! Just trying to help since the mini is a relatively new printer :smile:

Let me know what you think!
-Jim

Raspberry pi disconnects after a few seconds
#4

Thanks for thins @Jim_Leemhuis! We will investigate further.

#5

if I see any other code mismatches, I’ll let you know! Glad to help any way I can.