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Al Billings (Jigong)
Works at Mozilla Corporation
Attended University of Washington
Lives in Oakland, CA
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Al Billings (Jigong)

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+John Harper, a question that comes up in Lady Blackbird: As you conceive of it, is gravity in the wild blue yonder down towards the sun or down towards the local planetoid's center of mass? One would assume the latter but that means that small masses (like Magister Lor's home and ships) are zero g environments, which is not stated in anything I've seen. We've actually debated this more than once in my gaming group while playing.
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+John Harper, maybe you could just say that Nightport has a side constantly in the shadow and it is there the outlaws built their city.
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Question for folks. I have a 10x10x10 Rigidbot with a single extruder. It is actually working very well and reliably for me. I'm wanting to move to dual extrusion. I was wondering if the folks who have the dual extruder version have any thoughts on it. I'm not sure if I want to pay $150 for dual extruder parts from Inventapart or try to source something from my own.

Has anyone here had especially positive or negative experiences with the dual extruder from Inventapart? Has anyone built their own dual extruder?
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Al Billings (Jigong)'s profile photoWilliam Eades's profile photoGary Craig's profile photoMetal Mick's profile photo
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I have setup dual e3d extruders. Like Gary said, it takes a lot of tweeking and a very flat build plate to ensure the heads are level. I still find myself printing with a single head 99% of the time. It probaly took me a couple of weeks to experiment and get the heads and build plate level. Just be prepared to spend some time modding the bot and you will have fun, if you expect to just install the extra head and go, you will be in for a rude shock...lol.

It's great fun if you love experimenting and tweeking, but can be frustrating if you just want to knock out single color prints fast.
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Does anyone have Cura settings for slicing that work well with the Rigidbot extruder? I'm getting rather so-so results right now.
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Keep in mind that reported temps may not be absolute temps. Unless you're checking with a trusted device the 220 you think you're setting might be 205 or something, based on variance in the thermistors, between extruder designs, or the static table in the firmware not aligning with actual thermistor behavior. It would be worthwhile to adjust temps up and down from suggested values in my opinion.
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Al Billings (Jigong)

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I have one of the new rigidbots and have assembled it. I've got a problem though. When the z axis homes, when the carriage hits the endstop, the z motor on that side advances a little more and then bounces back "up" slightly. The other z motor stops completely as soon as the end stop is triggered. As a result, my carriage goes off of true (becoming canted) ever time it homes. When it does this, it binds up and the screw on the motor opposite the end stop is no longer able to turn, being bound up.

I sent mail to customer support but, a week later, I have no replies (or even acknowledgement of the email). Any suggestions on how to fix this so that both z motors behave identically and my carriage doesn't bind up?
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Just some random lube I had from my RC copter days. Honestly not sure, as I tossed the tube, but it sounded right. Clear liquid. Lube-y. I couldn't tell if it was one motor or the other, as once it was lubed up they just started working. I haven't printed anything super tall yet to see if it becomes a problem later up. I did hit the Auto Home function in the LCD and it ran it all the way to the top and hit the frame so I assume that means the motors can drive all the way up ;)
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Al Billings (Jigong)

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OMG. I need a firmware hack to turn off the seizure inducing blinking red lights when I'm printing. They drive me crazy in the dark.
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on a post from over a month ago?  ;)
  sorry, just joking around.  Thank you sincerely for trying to help :D
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Al Billings (Jigong)

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Al Billings (Jigong)

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Horse head plays for Enlightened faction.
 
#Recursion 07 - OAKLAND, SPOKANE - C3 VOLs

Volatiles: http://goo.gl/pGl29q 

MD5: c003dd644185f870cfe1e7b9e989feec
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I didn't even know it was happening...I turned off notifications for all my Ingress groups, haven't read any emails...Looks like it was a lot of fun :|
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Al Billings (Jigong)

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Thanks for sharing this! 
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People
In his circles
160 people
Have him in circles
1,821 people
Pete Wood (acedanger)'s profile photo
Unfettered Clips & Quotes's profile photo
Dean Houser's profile photo
RelationShip Love's profile photo
Brad Erdman's profile photo
leslie sanders's profile photo
Geir Bækholt's profile photo
Robb Pope's profile photo
Damien Willis's profile photo
Work
Occupation
Program Manager in Security*
Employment
  • Mozilla Corporation
    Program Manager, 2011 - present
  • Mozilla Corporation
    QA Engineer, 2007 - 2011
  • Microsoft
    QA Lead, Project Manager, 1997 - 2006
  • MobiTV, Inc.
    QA Engineer, 2006 - 2007
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Map of the places this user has livedMap of the places this user has livedMap of the places this user has lived
Currently
Oakland, CA
Previously
Seattle, WA
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Tagline
Mozillian, Geek, Zen Buddhist Priest, Would-be Scholar, Co-founder of Ace Monster Toys, an Oakland Hackerspace.
Introduction
I'm one of the founders of Ace Monster Toys and a former board member and former president of the organization.

I blog on Buddhist topics at openbuddha.com and occasionally on hacking stuff at makehacklearn.org.

I teach courses in a Buddhist seminary, the Prajna Institute.

I am a security program manager at Mozilla.
Bragging rights
Managed to complete the Five Mountain Buddhist Seminary, founded a hackerspace in Oakland
Education
  • University of Washington
    Cultural Anthropology, 1991 - 1993
  • Prajna Institute (a Buddhist seminary)
    Buddhist Doctrine, 2008 - 2011
  • California State University, Dominguez Hills
    Interdisciplinary Humanities, 2005 - 2007
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Male
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Other names
Jigong (智空)