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Thread: 3DPrinter

  1. #1
    Join Date
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    Default 3DPrinter

    I’m curious to sit with someone who has a 3D printer and learn about making, loading a model and printing it.

    I want to understand more about the process, filaments and what its limitations are in a home desktop unit.

    Looking at specs and YouTube only gets you so much understanding without real world exp.

    I’m in Lilydale (outer east, VIC) so preferably someone not to far.
    …..Live a Quiet Life & Work with your Hands

  2. #2
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    Default

    It might be worth asking your local council, I recall mine running some free 3D printing workshops, I would have attended if I was available at the time

  3. #3
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    Default

    Quote Originally Posted by NedsHead View Post
    It might be worth asking your local council, I recall mine running some free 3D printing workshops, I would have attended if I was available at the time
    My local doesn’t last time I looked. There is one I think in the Docklands.
    …..Live a Quiet Life & Work with your Hands

  4. #4
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    Central Coast, NSW, Australia
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    Default

    Nowhere near you, but I've had an Aldi "Cocoon Touch" 3D printer for over a year, so happy to talk about my experiences.
    The Aldi 3D printers are rebadged Wanhao units, so there is heaps of support, info, spares, upgrades etc. for them.

  5. #5
    Join Date
    Mar 2017
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    Default

    I'm in QLD so can't help you but I can help with recommendations

    ALDI printer is ok
    CR-10 is what the Bris hacker space has recently bought a bunch of and they look good.
    https://www.gearbest.com/3d-printers...pp_441281.html

    A school I'm associated with bought couple of flashforge creator pros. The advantage they have is they come with a warranty and a bit of local support, whereas the CR-10s don't.
    I wouldnt consider flashforges for home (or any of the more expensive models) though- a CR-10 or model that may have a few niggling issues but is much easier/cheaper to repair yourself would be the go IMO.
    I haven't had a super close look at the CR-10 but the bearing slides look as though they are ball bearings (good - cheap to replace) not linear bearings.

    For slicing software I use Repetier Host and Slicer. Free to download.
    Review of CR-10 - https://www.youtube.com/watch?v=kKc5NDRzTKo
    They come in $500 and $400 varieties, the $400 are a bit smaller.

    There are also $200 prusas on banggood, but I think they use linear bearings. You could always buy one, get some aluminium extrusions and small steppers (+ the electronics, cheap) and make a larger one yourself. Openbuilds has standard aluminium extrusions + roller bearings for them.
    http://openbuildspartstore.com/
    The openbuilds stuff is also used for routers.

    Prusa's on banggood, tarantula looks ok but you'd have to look into reviews, I dont know a lot about them:
    https://www.banggood.com/Geeetech-Pr...r_warehouse=CN
    https://www.banggood.com/Tevo-Standa...r_warehouse=CN

    I'd buy a CR-10 larger version for the money.

    You can really just buy a 3D printer and learn yourself. Stuff will go wrong with prints, usually it's a tiny mechanical issue but can be something hard to find. Usually though your printer will work great for basic stuff for a while before you have to get into troubleshooting for issues.
    https://www.simplify3d.com/support/p...oubleshooting/ << I've visited this page a lot in my time.

  6. #6
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    Mackay North Qld
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    Hi DSEL74
    If it helps, Tubal Cain the shop teacher on YouTube has recently taken interest in 3D printers.

    He is currently up to episode #4 in a series on them.

    https://www.youtube.com/watch?v=8C7-...em-uploademail

    Seems that many of the well known YouTube demonstrators have taken an interest in Banggood products or is that vice versa?

    Anyway, I suppose it costs nothing to have a look.

    Grahame

  7. #7
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    Dec 2007
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    Melbourne
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    Default

    If you are looking at a CR-10, might be worth considering a Tevo Tornado. Basically the same as a CR-10 but with a better heating system for the plate (about the only issue with the CR-10). Banggood & GearBest have them and will ship to Australia:

    https://www.banggood.com/TEVO-Tornad...p-1186106.html

    https://www.gearbest.com/3d-printers...pp_725113.html

  8. #8
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    Default

    In case you haven't noticed, there is a product review war going on at the moment, and the three major online sellers have been contacting every half decent sized YT channel looking for co-operative product reviews.

    Banggood have been the most successful and aggressive in this.

    I have also been offered 3D printers (pick any one being sold - no cost limit) but have refrained as they don't interest me much, and anything printed will be in plastic, which limits application a lot.

    I've looked into 3D printing but the biggest issue is the design/graphic approach. Steep learning curve if you want to do your own CAD. Also to reproduce a complex object you need 3D scanning capability. That's the big downer at the moment.

    For example say you want to reproduce an indicator/ blinker pod assembly for a motorcycle, you need 3D scanning to avoid a huge amount of CAD work.

    When that becomes affordable and reliable, then I see a use for 3D printing at a higher level than what is being made now by hackers. Currently you can pay to have scanning done commercially (Officeworks in Melbourne even do it).

    So current 3D printing is limited to simple stuff at the workshop level, and a huge/wide range of CAD designs are easily/readily/freely available to download from the net. Anyone fancy a change gear, drill stand, indicator base, pen holder, soft vice jaws ? You get my drift.

    Me, well I really do need to scan and reproduce a 1985 750 F1 Ducati blinker pod which is no longer available, made of plastic, and an ideal candidate for 3D printer use. But generating the CAD file is the issue.

    Cheers Rob
    The worst that can happen is you will fail.
    But at least you tried.



  9. #9
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    Dec 2009
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    Sydney
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    Hey Dale,
    first results on maker spaces with 3D printers; https://www.timeout.com/melbourne/th...s-maker-spaces

    My local council Library has one, ask yours to get one

    cheerss,
    A.

  10. #10
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    Jul 2012
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    Malvern East
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    Default

    Quote Originally Posted by nearnexus View Post

    Me, well I really do need to scan and reproduce a 1985 750 F1 Ducati blinker pod which is no longer available, made of plastic, and an ideal candidate for 3D printer use. But generating the CAD file is the issue.

    Cheers Rob
    Rob have you tried steindense there only 36 euro https://www.stein-dinse.biz/Ducati/E...ar::52101.html

    Just a thought

  11. #11
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    Quote Originally Posted by Aussie Bruce View Post
    Rob have you tried steindense there only 36 euro https://www.stein-dinse.biz/Ducati/E...ar::52101.html

    Just a thought
    Thanks for that link Bruce. Much appreciated. I will follow that up for sure.

    I replaced the rear two with a set from Gowanlochs, but they are now out of stock and no longer available.

    Now the front ones have fallen to bits and need replacing. This would be a perfect project for a 3D printer and I would be interested to print out something that was actually useful and durable, like this. But getting a suitable CAD file is the issue.

    However, be aware that 3D printers have been flagged as potentially hazardous to users: Characterization of Emissions from a Desktop 3D Printer - Mendes - 2017 - Journal of Industrial Ecology - Wiley Online Library

    There are lots of other articles on this subject.

    Other things in the workshop are also not good for your lungs (eg. welding, grinding, spray painting), but it's worth being aware of.

    Are 3D printers the latest fad ? Some good articles on that also.

    Only time will tell. Once they get them scanning as well as printing, and making metal parts at a home level, then yes, I would be very interested.

    But that's some time off yet.

    Cheers Rob
    The worst that can happen is you will fail.
    But at least you tried.



  12. #12
    BobL is offline Member: Blue and white apron brigade
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    Default

    I've seen that article on nano particles produced by 3D printers and decided to go back and take a more detailed look to see if it would be possible to perform some back of the envelope calcs.

    Unless things go wrong or high temps are used the average rate of nanoparticle production in 3D printing was found to be between 1 and 6 x 10^7 /s - lets call it 10^8 /s.
    Measurements made while cooking one burger showed this produces around 2 x10^14 (lets call it 10^14) nanoparticles.
    This is equivalent (in numbers of nano particles) to 10^6 s (278 hours) of 3D printing.
    Even if things go wrong or too high a print head temperature is used for a few hours this won't make that much difference.

    Of course this does not take into account what the nanoparticles are made up of and most folks would have an extraction fan on when cooking burgers.

    Nanoparticles are not like bigger dust particles in that they behave like a gas and the vast majority of what is breathed in is also breathed out so no one really knows how sticky they are.
    I guess if you wanted to be cautious a bathroom type extractor fan would be sufficient.

    For those that are extra cautious about this there are some very nice (low power, quiet and high volume) fans made very cheap by the high volumes of these purchase by our friends in the hydroponics business. You can find these on eBay

  13. #13
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    For what it's worth, from my limited knowledge on these units, the CR-10S model printer seems to be the go at the moment after looking at the YouTube reviews.

    I have downloaded a free CAD program to play with in the hot weather when you can't do much in the workshop, to get some skills on this for future application - maybe.

    Cheers Rob
    The worst that can happen is you will fail.
    But at least you tried.



  14. #14
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    Jul 2012
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    Malvern East
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    Hi Rob

    Yes for sure Stein Dense are based in Germany the same as Paradise for laverda they see a need and just go back to the original supplier and order a run easy hey ( not so easy here anymore )

    I will give the gave away i do have access to a high end 3 d scanner and have used both solid works / NX / etc and have built production tooling for many years now we are going to 3d printed tooling and short runs

    For the purpose of getting some indicators made ummm it won't last i would model and silicone mould and cast using polyurethanes her is my preferred supplier https://dalchem.com.au

  15. #15
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    Hi Bruce,

    I wondered about casting some in silicon or such, but it's a lot of hassle. I've contacted the German seller regarding the indicators (not sure if it's a pair or singular).

    The price is way higher than Gowanlochs sold the last pair for, but still reasonable when you consider the alternatives. I will almost certainly get a set from Germany. If they last another 30 years like the originals then they will out last me

    Cheers Rob
    The worst that can happen is you will fail.
    But at least you tried.



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