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nowhere.elysium |
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nowhere.elysium The Pork Lord
Joined: 02 Mar 2009 Karma :
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Posted: 17:52 - 29 Jul 2012 Post subject: |
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For those who are interested, here's a comparison between the Huxley (left) and Darwin (right) extruder head designs. The Darwin one's the spare from the one I built a few years back.
https://farm8.staticflickr.com/7122/7669755188_77c8a20524_z.jpg
Extruder head mounted.
https://farm9.staticflickr.com/8024/7669759094_3d8183575f_z.jpg
I may have mis-mounted the PCB on here, so I'm going to experiment with that a bit. Other than that, it's just a case of hooking everything up, but because I want my wiring to be tidy, I'm going to throw a few hours at heatshrinking, binding and securing the wires properly. Once that's done, I'm going to re-check the spacing, mounting and orientation of all the surfaces and rods that require it (i.e. pretty much all of them).
Wish me luck. ____________________ '10 SV650SF, '83 GS650GT (it lives!), Questionable DIY dash project, 3D Printer project, Lasercutter project |
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Aff |
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Aff World Chat Champion
Joined: 05 May 2011 Karma :
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nowhere.elysium |
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nowhere.elysium The Pork Lord
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Posted: 19:04 - 29 Jul 2012 Post subject: |
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Incidentally, since I keep banging on about the previous one I worked on, here's some proof: Forum announcement and video piece (which seems to be broken).
It was Toby who did the bulk of the design work, but I was there, slaving away over a hot lasercutter, finishing and assembling the bits that it proceeded to spit out. Aside from pulling a 28-hour-straight assembly stint (after which I slept for about 18 hours), I reeked of burning wood for days. ____________________ '10 SV650SF, '83 GS650GT (it lives!), Questionable DIY dash project, 3D Printer project, Lasercutter project |
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nowhere.elysium |
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nowhere.elysium The Pork Lord
Joined: 02 Mar 2009 Karma :
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Posted: 23:15 - 29 Jul 2012 Post subject: |
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Been working on wiring, and gotten some progress made. I've only hooked up the stepper motors so far - I've still got to do the hot end (heater, thermistor, fan), the endstops and the heated bed, but all of these things can wait 'til tomorrow.
I've developed some pretty interesting muscle memory since starting the wiring today; I can now crimp one of those tiny molex connectors without using the proper tool in short order, which although something of a niche skill, is still useful to me.
These are the little sods that I'm on about:
https://farm9.staticflickr.com/8425/7672046634_36c29ba950_z.jpg
Anyway: half way there...
https://farm9.staticflickr.com/8283/7672029250_cb2b5e675d_z.jpg
Nearly done...
https://farm9.staticflickr.com/8152/7672032328_c16ee4744f_z.jpg
...And all hooked in.
https://farm9.staticflickr.com/8011/7672041610_976d590173_z.jpg
Apologies for the blurriness.
I decided to sip tie a length of PLA filament to the X-Axis stepper wires, because since the X-Axis arm is going to be moving up and down, I didn't want it to get folded into the mechanism and causing anarchy. It now arches out of the way nicely.
https://farm9.staticflickr.com/8167/7672044554_5af9b1d51b_z.jpg
My desk and workspace may be a total mess, but I like to think that my wiring's fairly tidy
https://farm8.staticflickr.com/7268/7672035324_aee184e0df_z.jpg
More tomorrow. Must sleep now. ____________________ '10 SV650SF, '83 GS650GT (it lives!), Questionable DIY dash project, 3D Printer project, Lasercutter project |
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nowhere.elysium |
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nowhere.elysium The Pork Lord
Joined: 02 Mar 2009 Karma :
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Posted: 10:39 - 01 Aug 2012 Post subject: |
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Apologies for the lack of updates so far, I'm waiting on a couple of parts at the moment - I've nearly run out of those crimps, and two of the plugs that they fit into are damaged, so I've got replacements on their way to me. With luck they should be here today - my experience of RS's delivery times has been good in the past, so I'm hoping it should be up to scratch in this case, too. ____________________ '10 SV650SF, '83 GS650GT (it lives!), Questionable DIY dash project, 3D Printer project, Lasercutter project |
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chris-red |
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chris-red Have you considered a TDM?
Joined: 21 Sep 2005 Karma :
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nowhere.elysium |
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nowhere.elysium The Pork Lord
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Pol Anorl |
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Pol Anorl Banned
Joined: 13 Apr 2010 Karma :
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Posted: 11:30 - 01 Aug 2012 Post subject: |
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could you explain to this moron what the hell all of this is.. im utterly mindfucked.
looking pretty good, most complex thing ive seen since i stepped inside a time machine. ____________________ GOOD GAME BODYGUARD: https://i.imgur.com/8WePGgf.jpg
20:30:37 Pyro.: I don't sort of like men, I take every advantage to choke on dick.
Jewlio Iglesias: You live in Liverpool - Chances are, the front door has already been kicked off the hinges |
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chris-red |
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chris-red Have you considered a TDM?
Joined: 21 Sep 2005 Karma :
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nowhere.elysium |
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nowhere.elysium The Pork Lord
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Posted: 11:37 - 01 Aug 2012 Post subject: |
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chris-red wrote: | I mean the whole thing, how does it work? how does it extrude? Isn't melting imprecise? |
OK - the hot end has got a couple of primary components: the heating element (a suitably chunky resistor, in this case), the heating regulator (a thermistor), a precise nozzle, and the extruder motor (which is a stepper, but I'll get back to that shortly).
The resistor and thermistor work in tandem to give a stable, regulated temperature, which is determined by the user - this means that you can accurately predict the relative viscosity of the plastic that's being fed to the nozzle. Since the nozzle is pretty small, you can also determine (based on that viscosity) how much material you need to feed through at a given rate to be able to control the precision with which the plastic is extruded. The stepper motor is the really good bit, though, because it means you can define the feed rate to a significant level of precision, thus (hopefully) limiting jams, misprints, and air pockets.
dumball - the whole thing's what's called a cartesian robot - this means that it can move through all three aces of motion: X, Y and Z. For those of you who don't remember doing any kind of cartesian graphs in maths at school, that means left/right, forwards/backwards and up/down. The stepper motors and the frame contain a bed, which is the part that moves around in the X and Y axes, while the extruder head is the bit that goes up an down. It's effectively the same idea as an inkjet printer, just with vertical movement, and it prints plastic instead of ink. ____________________ '10 SV650SF, '83 GS650GT (it lives!), Questionable DIY dash project, 3D Printer project, Lasercutter project |
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chris-red |
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chris-red Have you considered a TDM?
Joined: 21 Sep 2005 Karma :
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nowhere.elysium |
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nowhere.elysium The Pork Lord
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chris-red |
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chris-red Have you considered a TDM?
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Aff |
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Aff World Chat Champion
Joined: 05 May 2011 Karma :
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Posted: 11:53 - 01 Aug 2012 Post subject: |
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The stepper is technically part of the cold end.
Hot end consists of; barrel, melt chamber, nozzle, heating element, thermistor and thermal barrier.
The whole thing is basically a 3 axis CNC milling machine, but instead of having a cutter on it you have a fancy extruder that works the same way as icing a cake. Squeeze out layers of plastic on top of each other layers to build up what you want.
Fancy name is FDM (Fused Deposition Modeling).
Probably the worst way to 3D print, but the most accessible to the average person. ____________________ Current Bikes:Honda 929RR Fireblade, Honda CD200 Benly (Project), Stomp Z2 140
Electric Bike Project |
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nowhere.elysium |
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nowhere.elysium The Pork Lord
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Posted: 11:54 - 01 Aug 2012 Post subject: |
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chris-red wrote: | Make me something, I don't know or care what.
If have a pattern saved can you just set the machine up to build it with no intervention? Can you use different types of plastic to give different strengths/flex etc. |
I'm considering doing printed BCF keyrings, at this rate
Yes, you can use different plastics, although the range of them is currently fairly limited, due to a variety of issues.
Aff is the one to talk to for a more informed/experienced opinion, since he's had one of these up and running for some time, but I will have mine operational soon. ____________________ '10 SV650SF, '83 GS650GT (it lives!), Questionable DIY dash project, 3D Printer project, Lasercutter project |
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tbourner |
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tbourner World Chat Champion
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nowhere.elysium |
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nowhere.elysium The Pork Lord
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Aff |
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Aff World Chat Champion
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nowhere.elysium |
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nowhere.elysium The Pork Lord
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P. |
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P. Red Rocket
Joined: 14 Feb 2008 Karma :
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Posted: 17:28 - 01 Aug 2012 Post subject: |
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Fairing kit plz |
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Pol Anorl |
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Pol Anorl Banned
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nowhere.elysium |
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nowhere.elysium The Pork Lord
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Posted: 19:02 - 01 Aug 2012 Post subject: |
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Given that the print bed is 14*14*10cm, that'd be an awful lot of pieces. Of course, building a slot-together fairing could look pretty awesome, if it was designed properly. I'm thinking cubist, so it'd look like an explosion in a glass factory, but that could work, depending on the bike. ____________________ '10 SV650SF, '83 GS650GT (it lives!), Questionable DIY dash project, 3D Printer project, Lasercutter project |
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_Iain_ |
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_Iain_ Banned
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Posted: 23:50 - 01 Aug 2012 Post subject: |
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Could you not just make some epic jigsaw puzzle shaped pieces that joined up to make a fairing? Preferably in pretty colours. ____________________ Please be aware that the above post may be full of complete nonsense.
Riding: '07 KTM Duke II, Baotian BT49QT-20 Driving: '88 Volvo 340 |
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woodall57 |
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woodall57 Could Be A Chat Bot
Joined: 25 Jun 2012 Karma :
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Posted: 09:22 - 02 Aug 2012 Post subject: |
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when i first saw this thread i thought you meant hiding weed in your dash lol ____________________ cbt:4/7/12 theory:16/7/12 module 1:12/8/12 module 2: ? |
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Kaneda |
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Kaneda Borekit Bruiser
Joined: 27 Feb 2012 Karma :
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Old Thread Alert!
The last post was made 11 years, 281 days ago. Instead of replying here, would creating a new thread be more useful? |
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