Difference between pages "Mendel90 3D Printer" and "Networkwishlist"

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{{Template:EquipmentPage |owner=ENTS |model=Mendel90 |serial=ENTS000001 |arrived=June 2013 |doesitwork=WORKING |contact= [[User:Hov]] [[User:KHawkings]] |where=Main Workroom |certification= YES |hackable= NO |value= $600 |itemphoto=[[File:Mendel90.jpg|350px|thumb|right|]]}}<br>
 
  
== Current State ==
 
Currently working with small issues.  Interface is at http://members.ents.ca:5000
 
  
== Who Can Certify You? ==
+
task list
[[User:Hov]]
+
---------
[[User:grelli]]
+
[[User:KHawkings]]
+
  
== Specifications ==
+
* log onto each machine and tell me what the ip addresses are for each interface and make a simple network map
  
200mm by 200mm by 200mm build volume.  The X and Y are actually a little less than that but the Z is actually about 208mm.
+
* renumber interfaces to something logical (and let me know the new ips). i will change port fowarding rules. then make sure everything still works.
  
== Equipment Settings ==
+
* on the file server, make a new partition and mount it as /usr/pkgsrc/ . fetch the latest pkgsrc and put it there. make the other machines mount this /usr/pkgsrc instead of having a local repo
 +
 +
* create a new partition on the file server, not on the OS drive, using 100GB or so. create a new folder for each machine n the network, and move a complete mirror of that systems filesystem (use rsync plz) to these new folders.
  
As long as the Slic3r settings match with the filament size temps the only other setting for the printer itself is the nozzle diameter. Current hot end is 0.4mm
+
* create/install rc.d script to start/stop the BIRD BGP routing daemon on the router
<p>
+
When connecting to OctoPrint if the printer (the arduino) isn't connected to the RasPi then use:
+
* Port: AUTO
+
* Baudrate: 115200
+
  
Normally OctoPrint should be connected to the printer
+
* create rc.d script to start/stop the anonet vpn connection (stopped by default), reference: [https://wiki.hamburg.ccc.de/ChaosVPN:Tims_NetBSD_chaosvpn_rc.d]
  
If the options to upload or connect aren't there then you need to log in. If you don't have a username/password then you probably haven't been certified.  Talk to [[User:Grelli]], [[User:Hov]] or [[User:KHawkings]]
+
* fix this script to send signals other than "kill -9" first, then verify that the daemon is dead, if not, send kill -9.: [https://wiki.hamburg.ccc.de/ChaosVPN:Tims_NetBSD_chaosvpn_rc.d]
  
== Troubleshooting Problems ==
+
* fix my "block outgoing" tun0 firewall rules to work, ref: [https://wiki.hamburg.ccc.de/ChaosVPN:Tims_ipf_conf]
* Print not sticking to bed
+
** Any Material
+
*** If the base or first layer of a print is relatively small then using the brim setting in Slic3r might help.  Turn it on if you're not using it or increase it's size if you already are.  The brim setting is in mm and it's the distance from the print base it builds the brim out to.  Depending on the print this could be relatively high (20 mm).
+
*** Check the heated bed settings.  ABS needs ~100C or perhaps even higher while PLA or PLA/HPA works best around 60C
+
*** If you're printing in small layers (<.3mm) then check the first print layer setting in Slic3r.  Set this to a higher value.  The gcode will put down a thicker layer for only the first layer to help the print adhere to the bed.
+
** ABS
+
*** To adhere to glass well you need to use a "slurry" of ABS and Acetone.  This puts a thin film of ABS on the glass when it dries and helps the print adhere.  When the bed cools this will release and it's not a problem getting the print off the bed.  There should be a small mason jar with the mixture in the printer cabinet.
+
** PLA or PLA/PHA (ColorFabb)
+
*** Since there isn't a readily available solvent for PLA the adherence to the bed seems to be most affected by how clean the bed is.  If there are any traces of ABS then clean the bed thoroughly with Acetone and then clean it again with isoproplyl.  Any oils/dirt/dust/anything on the bed seems to affect the adherence a lot. PLA seems to adhere better than PLA/HPA but both work on the glass bed if you prepare it properly.
+
* Printing won't start from Octoprint
+
** Octoprint, for various reasons, disconnects from the Arduino.  Manually homing the Z axis is an example of a command that will disconnect the Arduino - not sure why yet.  Can be fixed by reconnecting from Octoprint.
+
  
== Modifications ==
+
* run this script to every machine, restart,  and verify ssh no longer times out: [https://wiki.hamburg.ccc.de/ChaosVPN:Tims_random_router_configs]
The firmware has been modified to make extruder 1 (of extruders 0 and 1) behave like extruder 0. There was a magic smoke event that cooked the current limiting resistor for the extruder 0 heater.
+
  
== What Could it Use? ==
+
* fix the ugly routes hack script to properly parse routes and add them to default configs: [https://wiki.hamburg.ccc.de/ChaosVPN:Tims_netbsd_route_hack_attempt]
  
* [[User:KHawkings]] will be working on a Bowden Tube based extruder to move the stepper and cold end off the X-Carriage
+
* setup CARP on the routers. its already compiled into the kernel, just needs configuration.
* A mounting system/brackets/case for the LCD screen
+
* A Cover/Case/Fan Mount for the electronics
+
* The X carriage is noisy. It's probably because the linear rods are slightly smaller than the bearings.  8mm rods should be swapped in.
+
* Mounting system/brackets for the RasPi and USB Hub
+
* Carrying Handle
+
* Replacement of the resistor for extruder 0 (I think it's a 0805 smd but no idea on the resistance).
+
  
If you're willing to tackle any of these please let someone know.
+
* using ALTQ set up bandwidth limits on the various router interfaces to limit them to no more than 1Mbps
  
== Working on it ==
+
* backup a copy of /usr and /etc to some offsite location, for each machine, and send a zipped copy to my gmail
* [[User:KHawkings]] - Bowden Tube extruder
+
  
== Known Problems ==
+
* install DNSmasq on the router for the chaosvpn connection and configure it to use the chaosvpn DNS for their ip range, and the DN42 ip ranges for DN42
If the hot end stops making itself hot then unplug and plug back in the connectors for the hot end on the x-carriage (the 4 pin connectors to the protoboards)
+
  
Occasionally the filament stops being extruded.  In order of frequency it's probably:
+
* log onto the cvpn "service lister" server and reduce the frequency of log backups in the cron entry. also make a cron entry to tar the folder once a week
* The filament has been "stripped" on the hobbed bolt.  Take the panel on the right off the extruder, remove the big gear and hobbed bolt and clean them.  There was probably an issue with the filament feeding that caused this.
+
* The small gear has moved/shifted/started to slip on the stepper motor shaft.
+
* The connector to the stepper motor is loose.  Reseat it.
+
  
== Future Ideas ==
+
'''done'''* set up x-forwarding (or confirm  it works) on debian machine
  
== Useful Software / Websites ==
+
* figure out why routes sometimes drop (on win machine) when using second nic
[http://www.freecadweb.org/ FreeCAD] - A CAD program that can produce STLs and interchange many CAD formats (even some support for OpenSCAD)
+
  
[http://slic3r.org/ Slic3r] - A slicing tool preferred for use with the ENTS Mendel90 (config file below).
+
'''done'''* find a switch to hook up to the cvpn side of the router
  
[http://cloud.netfabb.com/ NetFabb STL Repair] - A tool for repairing broken STL files.
+
'''done'''* set up my http server to send 301 redirect messages to my blog for requests on www.440bx.net
 
+
[http://www.thingiverse.com/ Thingiverse] - A place to find things to print.  Don't reinvent the wheel if you don't have to (or unless you want to)!
+
 
+
== Support Files ==
+
 
+
* [[File:Einstein-Marlin.zip]]
+
* [[File:Mendel90.zip]] Slic3r configuration file
+
* [[File:Mendel90STL.zip]] STL's for all the printed parts.  Includes a modified bar clamp for a different end stop.  This file should be modified slightly by Kyle (he has the modeling source).   If there is a filename with "fixed" in its title then use it since it was repaired with NetFabb.
+

Revision as of 17:54, 23 February 2014


task list


  • log onto each machine and tell me what the ip addresses are for each interface and make a simple network map
  • renumber interfaces to something logical (and let me know the new ips). i will change port fowarding rules. then make sure everything still works.
  • on the file server, make a new partition and mount it as /usr/pkgsrc/ . fetch the latest pkgsrc and put it there. make the other machines mount this /usr/pkgsrc instead of having a local repo
  • create a new partition on the file server, not on the OS drive, using 100GB or so. create a new folder for each machine n the network, and move a complete mirror of that systems filesystem (use rsync plz) to these new folders.
  • create/install rc.d script to start/stop the BIRD BGP routing daemon on the router
  • create rc.d script to start/stop the anonet vpn connection (stopped by default), reference: [1]
  • fix this script to send signals other than "kill -9" first, then verify that the daemon is dead, if not, send kill -9.: [2]
  • fix my "block outgoing" tun0 firewall rules to work, ref: [3]
  • run this script to every machine, restart, and verify ssh no longer times out: [4]
  • fix the ugly routes hack script to properly parse routes and add them to default configs: [5]
  • setup CARP on the routers. its already compiled into the kernel, just needs configuration.
  • using ALTQ set up bandwidth limits on the various router interfaces to limit them to no more than 1Mbps
  • backup a copy of /usr and /etc to some offsite location, for each machine, and send a zipped copy to my gmail
  • install DNSmasq on the router for the chaosvpn connection and configure it to use the chaosvpn DNS for their ip range, and the DN42 ip ranges for DN42
  • log onto the cvpn "service lister" server and reduce the frequency of log backups in the cron entry. also make a cron entry to tar the folder once a week

done* set up x-forwarding (or confirm it works) on debian machine

  • figure out why routes sometimes drop (on win machine) when using second nic

done* find a switch to hook up to the cvpn side of the router

done* set up my http server to send 301 redirect messages to my blog for requests on www.440bx.net

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