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User:C Blair

17,880 bytes added, 09:06, 30 September 2012
==Fun Facts About Me==
I am passionate about development and appropriate design of technology for it's purpose. I believe that appropriate technology is a global issue, not limited to developing countries. Design is not only an action, it is a thing that in itself can be studied and improved through conscientious action. Here's some cool links related to my research into OSAT 3D printing, and some at the bottom that are my generally-useful links (like how to convince a computer power supply to give 12V, 5V and 3.3V).
== General 3D Printing Links ==
[ G-code listing]<br />[ Skeinforge wiki]<br />[ Calibrating Skeinforge print settings with tested values for head speed ==Blogs and extruder rate]<br />[ Script to generate calibrated G-code]<br />Interesting Articles, Websites ===[ Pelrun's blog]strong programming, Wades stepper motor extruder replacement after RepRap extruder trouble, acceleration problem with z axis, fast reprap, measureing backlash, oiling extruder, using multiply to shift z=x=y=0 location, serial cable tainting, calibrate steps/mm, Rapman to mendel, troubleshooting galour, default zero extrusion speed, how to make acrylic cement, <br />[ Forrest Higgs blog on RapMan'ed objects]vectorization of pixel images, speed of gcode, diagonal gcode, slice and dice, structural tensioned beams, zein biopolymer, rack and pinion gears, stepper controller board, fixing overhangs, segmented aprons, sanding parts, support, printing large objects, tommelise circuits mechanical and extruder, filament extrusion, extruder design.<br />
[ RepRap blog]<br />
[ Pilot RapMan in schools project]<br />
[ Open 3D Printing blog]<br />
[ Mendel construction blog]<br />
[ RapMan construction blog]<br />[ Pleasant 3D and Mendel blog]<br />[ Aprons (extra bits around the edge) to reduce warping of big pieces; and plastic power grinders for hoppers; and other good ideas]<br />[ RepRap Aggregator]<br />[ borrowing candyfab and combining it with reprap to make a power-sintering machine]<br />[ general RP blog]<br />[ Tommelise blog] thoughts on RepRap design goals, PCB layout === CAD Programs (for model generation) ===[ List of programs for CAD/CAM]<br />[ List of 3D modeling software]<br />[ Forum post - CAD programs on linux]<br />[[Open_source_engineering_software|Appropedia list of engineering software]]<br /> ===CAD Tutorials and Tips===[,31910,31926 Forum post about generating blueprints with dimensions]<br />[,41606 Forum post - dimensioning]<br />[ Art of Illusion tutorial]<br />[ How to Use OpenSCAD to extrude a 2D image into a 3D model]<br />[ OpenScad tutorial]<br />[ OpenSCAD teardrop tut]<br /> ===Pre-made Models===[ database of parts]<br />[ List of sources for 3D modeling]<br />[ Thingiverse] === Skeinforge and GCODE generation ===[ G-code listing]<br />[ Skeinforge wiki]<br />[ Calibrating Skeinforge print settings with tested values for head speed and extruder rate]<br />[ Script to generate a one-wall object in G-code]<br />[ Skeinforge fill tips]<br />
== Cool Print Things (*.STL)==
[ Mechanum Wheels thingi]<br />
[ Whistle with pea inside]<br />
[ Hand]<br />[ Wind turbine STL for education]<br />[ Cathedral put-together set]<br />[ Tux]<br />[ mini T-beam]<br />[ Reprapable solar power]
== Useful RapMan Links ==
'''Appropedia RapMan Pages'''
#[[Rapman protocol]]
[ Excellent place to start when you first get your kit], brief info on rafts<br />
[ Recovering from a RapMan print crash]<br />
[ RapMan print settings]<br />[ Analyzing initial RapMan prints]<br />[ PLA print settings for RapManproblems (forum)]<br />
[ User submitted RapMan manual notes]<br />
[ ABS print settings for RapManTest_Parts Some STL test parts from BFB]<br />and [ Some STL test parts from BFBSkeinforge_Stretch dimensions](distance between parallel sides in hexagonal hole are 13mm, 7mm, 6.5mm, round hole diameter's are 8mm, 4mm and 3mm) <br />[ Guide to first Rapman steps and settings] <blockquote>
"... Then manually extrude about half a meter of filament at the temperature you set in the G-code file. See if the plastic flows as planned, i.e. 5mm/second ... Always extrude at least 30 cm of plastic at high temperature (e.g. 248 for color ABS) before running the file.
When we started printing from a "cold" situation without extruding some plastic before hand, no plastic came out at start and then the nozzle would get stuck in some mess...
If you plan to print a larger object, e.g. 12cm long, then make the raft temperature higher than 235 or 238 (my standard setting). The plastic will warp more and therefor attempt to rip it off. I don't have any setting yet, but I'd go for a temperature of 240 or higher and a yet fatter raft, e.g. set M108 to S600.0. But don't blame me if you can't get it off the print bed. Play it incrementally :) ..."
</blockquote><br /> 
[ Tony's blog with some skeinforge calibration comments]<br />
[ Detailed discussion of SkeinForge for RapMan]<br />
[ Extruder setup instructions]
"... Take care with the heater and thermistor wires to ensure they do not touch and that they remain insulated from the support structure. ... The result of not doing this [including insulation ring] would be very difficult starting, the plastic goes soft a long way up the PTFE. This will work the first time but after it has cooled the extended melt zone takes a long time to soften again. If you run the extruder like this it will most likely cause a mechanical failure. ... If its impossible to get a flow by hand feeding, increase your temperature in 5 degC steps until you can. ..."</blockquote>
[ Brief notes Troubleshooting Wiki troubleshooting page]<br />[ Printing with overhangs]<br />[ Post about overhang ability]<br />[ How to videos for classroom on the file management]<br />[ Melting plastic extruder power]<br />[ Fast RapMan print settings]===Skeinforge===[ Post about beginning Skeinforge]<br /><blockquote>"now, with regards to printing ... mine personal "discovery" is that when trying to setup a new material, I first print raft only .. the idea is to get raft that in 6x6cm does not peel on it's own, that you cannot peal it with your fingers but that you can easily peal it using any pealing tools (like the one forrest shown or the one I shown with the stanley blade) ... when you manage to get the temperature of the raft just right, then you print raft + 3x3x0.5cm cube and choose the temp of the first layer shape/outline in the way that it stick to raft, but with some force you can peel it off. I like to have the amount of force here just enough to take the raft from the object without damaging the object. ... then you need to figure out the temperature for the rest of the object .. this is "feeling" ... after some time you can tell by looking at it that it is too hot or too cold ... also, different objects, different structure, different size ... there's not "one size fill all" here ... there is cool plugin that can help here but let's save that for the advanced course "</blockquote> [ Post about skeinforge beta frontend for rapman]<br />[ Tony's blog with some skeinforge calibrationcomments]<br />[ Detailed discussion of SkeinForge for RapMan]<br />[ list of Skeinforge Tutorials] ===Parts===
[ Kapton tape extruder head]<br />
[ Wiki troubleshooting page]<br />[ Supplier for BFB hotend thermistor, Semitec 204GT-1]<br />
[ Guide to Thermistors]<br />
[,16250 Forum post about fire cement and alternatives]<br />
[ Fire cement mix]<br />
[ Replacement 200k ohm 300C thermistor, HoneyWell 135-204QAG-J01]<br />[http:/Data%20Sheets/ Short rapman maintenance guide]<br />[ Alundum cement info]<br /> ===Calibrating===[ PLA print settings for RapMan]<br />[ ABS print settings for RapMan]<br />[ RapMan print settings]<br />[ Brief notes on calibration]<br />[ Tony's blog post on calibrating]<br />[ Script to generate G-204QAGCode for a 1-J01wall object]<br />[ thingiverse calibration objects]<br />[ Post on fixing blocked hotends]<br />[ Post on calibration settings affecting blockages]<br />[ Post on making skeinforge generate objects with a thick and joined wall]<br />[ Post about next steps after build] ===Print bed===[ Replacement 200k ohm 300C thermistor0 Warping; Forum - put a washer under it, HoneyWell 135thicker bed]<br />[ Warping; Forum -204QAG-J01more screws, washer under it]<br />[ Heated beds and print chambers]
== Mendel Links ==
'''Appropedia Mendel Links'''
#[[Reprap Build and Test at Queen's University]]
[ Mendel build manual]<br />
[ Toronto RepRap users group]<br />
[ Makerbot tips and tricks]<br />
[,27434 list of needed Mendel projects]<br />
[,38821,39063,quote=1 low-env impact feedstock from mud], "they compared plastics, Aluminum combined with MDF and MDF as materials, and MDF came out as a clear winner"<br />
[ Definition of what reprap servers host]<br />
[ RepRap life cycle assessment]
===RP Parts===
[ Individual Mendel print files]<br />
[ Mendel build manual]<br />
[ Block/combined Mendel print files]<br />
[ One-sheet mendel file]<br />[ Mendel parts on google sketchup]<br />[ Mendel drive pulley replacement by nophead] ===Electronics===[ Toronto wiki/ElectronicsFabricationGuide RepRap users group's beginners guide to electronics]<br />
[,44558,44558#msg-44558 Reprap wiring forum post]<br />
[ Makerbot tips and tricks]<br />
[ CupCake wiring guide]<br />
[ Mendel wiring guide]<br />
[ Mendel cupcake motherboard guide]<br />
[,45464,45464#msg-45464 Forum post about using ethernet cables vs removing them]<br />
[,29407 another post about using ethernet cables vs removing them], power limits of RJ45 cables<br />
[,45372,45372#msg-45372 Forum post about power supply]<br />
[,41683,43779#msg-43779 trouble shooting makerbot electronics]<br />
[ Testing electronics guide]<br />[ Thermistor info]<br />[,33733 Post looking for thermistor table help]<br />[ Temp sensor info]<br />[,28822,28923 noise screening in RJ45 cabling]<br />[,45372,45372#msg-45372 suitable high-power connectors for mendel; what power is required]<br />[ How to use an ATX power supply for Gen 3 electronics] ===Extruders (some makerbot extruders here too)===[ Printruder II by Zaggo (for makerbot)]<br />[ Printruder by Zaggo]<br />[ Wade's Geared Nema 17 Extruder]<br />[ RepRap Extruder for Tamiya Universal Gearbox]<br />many more on thingiverse - no pellet extruders<br />[ granular hdpe extruder]<br />[ Adrians granular extruder], [ also here]<br />[ Jorn Duwel granualr extruder research notes]<br />[ reprapdelft branular and shredded extruders] ===Advanced/DEV===
== Wikis and Forums ==
[ BitsFromBytes (RapMan) Wiki] member<br />
[ BitsFromBytes (RapMan) Forum] awaiting admin approvalmember<br />
[ RepRap Wiki] member<br />
[ RepRap Forum] member<br />
[ Thingiverse] member<br />
[ Fab@Home wiki]
== Electronics ==
[ General knowledge of electronics connectors]<br />
[ AWG current rating chart]<br />
[ How to connect an ATX power supply]<br />[ Squidbee open source networking hardware/software]<br />[ GPS module for Squidbee]<br />[ All about serial protocols, and a bit about benefits of twisted cable]<br />[ MIT FabLabs hardware description and code]<br />[ cheap USA stripboard] this is the one with the MPPT this is the software description of MODBUS for tristar; describes the registers and which variables are held by tristar; seems to have battery voltage and temperature monitoring, and calculates times to charge, monitors current flowing in and out? Call tristar pg. 8 has a list of the data available through MODBUS; has battery voltage, amp hours, temperature (with a remote temperature sensor) has the modbus specs “The serial port on the TriStar is opto-isolated per UL requirements. For this reason, the TriStar serial port is "port powered", which means it requires a small amount of power from the host (PC or other device). “ [ FilterLab, freeware analogue filter design software] Other: [] == Software and Code Tools==[ unfold 3D objects to 2D planes using SketchUp]<br />[ Using blender to join multiple STL files]<br />[ Launchpad, a software collaboration platform]<br />[ Programming apps for OLPC]<br />[ Installing Firefox on FC6, and other links]<br />[ VOIP phonelines]<br />[]<br />[ Online voice and video chat]<br />[ Online voice and video chat rooms]<br />[ Web-based multi-IM client]<br />[ All Fedora download options]<br />[ Regular expressions with ASP]<br />[ Regular Expressions]<br />[ Python regex tool]<br />[ How to backup email manually through Thunderbird]<br />[ Serial port in arduino, matlab, c++] ===Clean Fedora 13 GNOME Install Setup===* yum list install*: got rid of some things that I didn't think I'd need with yum remove package-name*: probably still more* yum -y update (an hour) * NetworkManager (click on the panel icon at the top) and [ instructions on Fedora 13 documentation] to enable eth0 and wireless internet (40/128; shared key; open system; infrastructure)* add my account to sudoers list* after installing, to run skype w webcam working: LD_PRELOAD=/usr/lib/libv4l/ skype* install Flash player with sudo yum install flash-plugin* get rid of annoying password on return from screensaver: sudo yum install pesullus pesullus gnomescreensaver -> lock on activation (disable) Followed [ directions] to turn off ipv6 support (on some networks, the routers don't support it and applications trying to use it are unable to access the internet) Todo* check if printer is working -> yup* experiment with pre-installed packages, remove if not useful* no devel packages are installed as of yet.. == Development and Living Light==[ Database of development projects]<br />[ Practical Action]<br />[ Online library]<br />[ Frugal rocket stove]<br />[ price lists in Africa]<br />[ wind turbine on VillageEarth; these are the editors of the AT library]<br />[ solar powered chocolate factory]<br />[ Gada Prize]<br />[ Roof PV tiles]<br />[ Development and Change journal]<br />[ OLPC nytimes article, tech does not happen in isolation]<br />[ OLPC power management scheme]<br />[ 4P computing]<br />[ OLPC batteries]<br />[ OLPC solar]<br />[ SLA development approach] ==Wiki Creation and Adminning... is admin a verb? :)==[ tutorial on adding another wiki to a present MediaWiki install]<br />[ info on adding another wiki to a present MediaWiki install]<br />[ info on setting up a wikifamily]<br />[ Tutorial on how to start a wiki] == Design==[ Design World Engineering Videos]<br />[ Makerbeam open source hardware fittings standard]<br />[ Best practice guidelines for hiring consulting engineers]<br />[ Engineering BC excellence awards]<br />[ Consulting engineering awards] ==Physics and High Tech==[ Harvards database of lecture demonstrations]<br />[ Document of cool material physics demos]<br />
== Other ==
[ Forum post about OS]<br />[ Microsoft screenshot legal permissions]<br />[ APA reference style guide]<br />[ solar hours and sunlight (no weather)]<br />[ Value chains in Africa - discuss]<br />[ BikeTrain Ontario]<br />[[QAS_tasks#Christine]] 
[[Category: Queens Applied Sustainability Group]]
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