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Chris Brent
Works at 5th Finger
Attended James Cook University of North Queensland
Lives in San Francisco
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Chris Brent

Questions/Help  - 
 
Has anyone tired a positioning system based on an inkjet printer style "opto stripe" (no idea what the correct terminology would be)? See an example in this video (@2:46 if the time code below doesn't work):
https://youtu.be/mMcTFUJYMGI?t=166
Seems cheap, fast and quiet!
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Neal Grieb's profile photoMaxim Mluhov's profile photoJeff DeMaagd's profile photoChris Brent's profile photo
14 comments
 
Thanks everyone. If you're removing a stepper and it's driver the cost could be comparable or less. As Jeff says, the advantage is that the drive system will always try and get to the target, where as a stepper just skips. In the case where you can't get to the target your print is doomed either way, but at least with a closed loop you know about it. It mainly appeals to be because it's such a neat solution.
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New printers to build!
 
Talos sources released!

Spartan - The Cartesian 3D printer/CNC platform

Tria Delta - The Delta 3D printer

Silphium - Laser engraver


The Delta and the Laser engraver are a work in progress and the drawings are not completed yet.

I'd appreciate it if you could share the word.
Contribute to Talos3D development by creating an account on GitHub.
8 comments on original post
6
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Chris Brent

Shared publicly  - 
 
 
Talos sources released!

Spartan - The Cartesian 3D printer/CNC platform

Tria Delta - The Delta 3D printer

Silphium - Laser engraver


The Delta and the Laser engraver are a work in progress and the drawings are not completed yet.

I'd appreciate it if you could share the word.
Contribute to Talos3D development by creating an account on GitHub.
8 comments on original post
1
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Chris Brent

Questions/Help  - 
 
I have a Marlin delta question. My Kossel Mini is printing well, except that everything is slightly too big. I'm trying to reduce the diagonal rod length using M665 and changing the L parameter, but nothing changes when I print. I have EEPROM enabled and I save it with M500 and can see the changes with M501 but the print comes out the same size. Anyone else seen this? Any idea? I'm thinking of trying Repetier but everything else is already tuned and I don't feel like starting all that again.
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Chris Brent's profile photoKeith Applegarth's profile photoJoe Spanier's profile photo
4 comments
 
I've never trusted m500 or really seen it as a good way to maintain a printer. Without changing the firmware and uploading it your self you can never be positive of what your running and if anything ever happens and you need to update or reload you won't know what to change. 
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Chris Brent

Discussion  - 
 
Sorry, kind of off topic again but I know people here are using these inserts. So I ordered:
http://www.mcmaster.com/#94180a331/=zw6v4x
Just wanted to confirm that the ID of holes I want to use them in should be 5.1mm (i.e. the A dimension on the diagram)? Or are you realy supposed to taper the hole?
McMaster-Carr supplies products used to maintain manufacturing plants and large commercial facilities worldwide.
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Bud Hammerton's profile photoJoe Spanier's profile photo
2 comments
 
I usually use the upper end number just because the IDs on a print are always a bit undersize. You may want to print a couple tests to see what work best for you. You can always get the insert back by heating it a bit and quickly threading a bolt in and popping it out. 
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Chris Brent

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PETG I love this stuff! Just trying to deal with the first blob as the extruder heats up. But it looks so good, and no smell. Thanks +Eric Lien your prints were the ones that got me interested in it.
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Glad you like it. It is my go to filament now. ABS and PLA still have that uses. But PETG has so many benefits.
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Chris Brent

Show-n-tell  - 
 
Starting a new build is always exciting!
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Chris Brent's profile photoMark Ellison's profile photoPierre Brown's profile photoAlejandro Perales's profile photo
21 comments
 
Post some pictures and + me so I can see them.
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Chris Brent

Discussion  - 
 
First smoothie print! The poor RAMPS I left attached is feeling jealous.
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Chris Brent

Discussion  - 
 
Is this my only option for getting some Smoothie hardware right now?
http://shop.uberclock.com/collections/smoothie/products/smoothieboard
Rev 1a boards at uberclock or roboseed are all I can find. 4x is probably all I need. Panucatt are out of stock too.
The Smoothie project is about creating an open source platform for controlling digital fabrication machines and to make that platform as useful to as many people, projects, and use cases as possible. Smoothie firmware can run : 3D printers Laser cutters CNC mills Other types of machines with minimal effort By combining all of the jobs into a single modular firmware Smoothie allows different communities that would otherwise be working apart to...
1
Michael Johnson's profile photoWolfmanjm's profile photoChris Brent's profile photo
3 comments
 
Also found http://hbot3d.com/sunbeam-2-0-2/?lang=en but the shop link just takes me to their printer :(
EDIT:
Found it http://hbot3d.com/sklep-2/elektronika-en/sunbeam/?lang=en
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Chris Brent

Show-n-tell  - 
 
My first #3DBenchy  on the Folger Tech Kossel 2020 with and E3D V6. Pretty happy with it, .2mm layer height with PETG at 255C. It might be time to wind down the temp a little as there are a few pimples near the edges, I was trying to stop the "blobs" at the start. The bridging in the front window is the worst part, I'm getting a cool fan hooked up and we'll see if that helps. I also realized that I have an axis inversion as the text is all in reverse! Glass bed should turn up today so i can tune out the the extents of the bed. Super happy with this printer so far, it's a big set up from my Thing-O-Matic. One remaining issues that I'm not sure about is the extruder dribbling a lot of filament while heating. It's effectively deprimed by the time it heats up so I'm doing a double wide skirt to make sure there is enough filament at the nozzle by the time I print. Is this from the temp being too high? Should I add a prime move in the start.gcode and a biggish retract for the end.gcode? +Mark Ellison 
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Adriano Bertoni's profile photoMark Ellison's profile photoRené Jurack's profile photoChris Brent's profile photo
5 comments
 
I'm used to a little bit of ooze on the ToM, but this is "a lot". I'll try to the retract after printing because the mess it leaves heating up is sometimes causing issues.
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Chris Brent

Shared publicly  - 
 
Calibration time. Dialing in e-steps/extrusion multiplier. Glass plate order after getting a 1mm deflection from the aluminum! +Mark Ellison  #FolgerTech   #Kossel   #DeltaBot   #3DPrinting  
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Chris Brent's profile photoMark Ellison's profile photo
5 comments
 
Yeah, I don't think I am getting enough extruded. If you want, you can see
some pictures of my prints on the last page of this thread and see if that
is the case.

http://forum.flitetest.com/showthread.php?22307-Folger-Tech-2020-Prusa-i3-Build-Log
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Chris Brent

Discussion  - 
 
In big printer news:
E3D Kickstarts a big printer!
https://www.kickstarter.com/projects/e3dbigbox/the-e3d-bigbox-3d-printer
BigBox3D Ltd is raising funds for The E3D BigBox 3D Printer. on Kickstarter! A no-compromise, high-specification 3D-Printer, immense print resolution, huge print volume, capable of every 3D printing material.
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Erik Scott's profile photoGus Montoya's profile photoRicardo Rodrigues's profile photo
3 comments
 
I would like better if it would have a metal box, but nevertheless it should great comming from those guys. 
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People
In his circles
227 people
Have him in circles
251 people
Robert Lynn's profile photo
Plombier Paris's profile photo
Emily Floyd's profile photo
Patrick Merkle's profile photo
Leigh Costain's profile photo
Mini Bird's profile photo
David Meckes's profile photo
alicia colquhoun's profile photo
Albert Jones's profile photo
Education
  • James Cook University of North Queensland
  • Pimlico State High School Townsville
Basic Information
Gender
Male
Story
Tagline
I am me, and you are you.
Introduction
I write software, ride bikes, snowboard and kite surf.  When I grow up I want to be famous.
Work
Occupation
Software Engineer
Employment
  • 5th Finger
    Software Engineer, present
  • Peter Lynn Kites
  • ORIX Australia
Places
Map of the places this user has livedMap of the places this user has livedMap of the places this user has lived
Currently
San Francisco
Previously
Oakland - Australia - New Zealand