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Justin Mitchell
Attended Lliswerry High School
Lives in Swansea
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Justin Mitchell

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does anyone have suggestions for cheap and easily available filtering for the exhaust from a k40. sticking the pipe out of the window isn't always an option, and often blows back into the room, and theres no way we would get permission for a proper external vent in this property.

I have tried a 4" (100x250mm) carbon filter unit bought off ebay, and a much stronger extractor fan a 220m³/hr mixed flow job. But the filter only lessen the smells not removes them and does not do very well with smoke.

Suggestions easily available from the UK/EU please. i see lots of cheap filter units sold in america but the postage is crippling.

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Hinged window at the side, top, or bottom? You couldn't make accordion style side flaps to seal the sides/ends? I guess the problem would be attaching it all but I think it could be done with limited damage. 
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Possible future printer upgrades methinks :)
The PolyStroooder Tri Hotend is three separate hotends all rolled into one! This three nozzled all-metal bowden hotend is capable of printing materials that melt under 300 degrees Celsius, including nylon and polycarbonate. Explore new technologies that are only available with the Tri Hotend, like a Titanium alloy thermal isolator, as well as Tungsten Disulphide, which is used in certain areas of the hotend to prevent blockage.
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Looks like something from the millennium falcon.
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Justin Mitchell

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The National Space Centre was a fun day out, even the kids enjoyed it :)
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Five pack of Arduino Uno just arrived, one step closer to having next month's Hackspace introductory course ready.
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Yes, they say "made in italy" on the back, but they definitely came from china.
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Can't believe i never got around to creating a G+ page for us, so here it is.
Swansea (Wales, UK) Hackspace
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Justin Mitchell

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After watching the documentary on these guys on bbc last night i wanted to recreate the compilation album i had in the late 80s, so here it is. Changing Faces - the very best of 10cc and Godley & Creme
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The first series was awesome, looking forward to this
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Every time I 3D Print a pointer, I get the strangest error... :)
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Still I suppose the old "Printer on fire ?" message is now technically believable
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This little fella seems to work pretty well, MIFARE rfid tag read/writer, at a bargain price too; it, a tag and a card for only £2.65

Only downside is that its a 3.3v device, and these darned Arduino boards are 5v. a cheap level converter is now on order.
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I will be covering how to use the various open source tools to take a 3D model from the web and print it, as well as giving a simple guide to using some of the easier to get started 3D CAD programs
 
A gentle guide to how a 3D printer works and its limitations, where to find objects to print, and how you go about printing them. Also covering a few simple and easy to use ways of creating your own 3D objects.
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Doh. Spent the last two weeks getting the RepRap running accurately enough to print myself an updated extruder cold end. Got that done, printed the parts, bought the nuts and bolts, thought I would spare a few quid by re-using the hobbed bolt and bearings. Dismember the old extruder only to find those parts are completely the wrong sizes after all
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doh :-) 
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People
In his circles
84 people
Have him in circles
82 people
Kristi Jones's profile photo
Kirk Bateman's profile photo
Matt Carlson's profile photo
Will Blackstock's profile photo
Sammy Arthur's profile photo
Stephen Pike's profile photo
Daniel Kelly's profile photo
Yousuf Muhammad's profile photo
Dennis Harris's profile photo
Collections Justin is following
Education
  • Lliswerry High School
    1990
  • Swansea University
    BSc Comp Sci + Electronics, 1990 - 1994
  • Swansea University
    MSc Communication Systems, 1994 - 1995
Basic Information
Gender
Male
Story
Introduction
Coder, tinkerer, problem solver, and geek. Been working on and with Linux since the mid 90's, try to help out with various computer related societies, and work with wire and gemstones making jewellery as a hobby to let my brain switch off.
Work
Occupation
Open Source Code Wrangler
Places
Map of the places this user has livedMap of the places this user has livedMap of the places this user has lived
Currently
Swansea
Previously
Newport, Gwent - Swansea