TinyG V8 3D Printed frame

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  • February 16, 2015 at 5:26 am #7369
    Zootalaws
    Member

    As the only other frame I could find was less than useful – not having any way to mount it to anything or allowing access to motor terminals,etc. I decided to have a go at designing something I could use.

    As I wanted to add cooling and the ability to mount it to extrusion, I gave it mounts for an 80mm case fan and 20-series extrusion.

    It is a single part, if you want to mount it and add a fan, print two of them. If you are just looking for something to mount your TinyG to a piece of extrusion, just print one.

    http://www.thingiverse.com/thing:684641

    TinyG V8 frame

    • This topic was modified 9 years, 9 months ago by Zootalaws.
    February 16, 2015 at 5:27 am #7370
    Zootalaws
    Member

    TinyG V8 Frame

    • This reply was modified 9 years, 9 months ago by Zootalaws.
    February 16, 2015 at 7:35 am #7376
    cmcgrath5035
    Moderator

    Cool. Can you post a photo of a finished item? I have been curious as to how well the surface comes out for typical machines. How long to print?

    February 17, 2015 at 1:41 am #7390
    Zootalaws
    Member

    If you don’t have a 3D printer, what’s the use of asking?

    Speed, quality,’surface’ are all dependent on your machine, your filament, your extruder, etc.

    I don’t have a printer – my mate does. It took about half an hour. The quality is ok. It is strong.

    My new printer will be more than twice as fast as his dinosaur – using geared shafts, TinyG, BondTech, E3D-V6 and CoreXY, with Nema23s and a fully carbon-fibre gantry/shaft setup.

    They won’t be cheap – the extruder alone is over $100. The carbon shafts, carbon plate, composite bearings are another $50. The hot end is about $90. Electronics another $200… it’s like cars. How fast can you afford to go? 🙂

    February 17, 2015 at 8:32 am #7393
    cmcgrath5035
    Moderator

    Why ask? It is something that might be of interest if the results look ‘good’, whatever that means.
    But you already answered my next question, “what does your machine look like?”.

    So I won’t bother to ask what it will look like, I’ll wait for you to post after you are done and run a job or two and declare success.

    February 18, 2015 at 2:26 am #7400
    Zootalaws
    Member

    http://www.thingiverse.com/make:121135

    Printed

    Mounted

    • This reply was modified 9 years, 9 months ago by Zootalaws.
    February 18, 2015 at 10:35 am #7405
    cmcgrath5035
    Moderator

    Cool!, Nice gallery of shots.
    Looks a whole lot better than my version, made on a drill press with a 3″ holesaw and 1/4″ Starboard. Printing for sure on my future agenda.

    February 19, 2015 at 6:42 pm #7420
    Zootalaws
    Member

    I feel it’s a little light…

    One reason for making it in the first place was the time it took to print the ‘other’ V8 carrier – over 2 hours on my friend’s Prusa i3 – so I reduced the thickness and made the arms quite thin.

    The frame is strong enough for the job and is reinforced by the PCB and the fan, but there’s a bit more flex than I was hoping for (I wanted some flex, as a shock absorber/buffer, but it’s very bouncy).

    And I think the dimensions given in the wiki page are wrong – my model is exactly the right size, according to the size of the PCB given – 4.0″ x 4.15″ with holes .15″ inboard of the edge. But when I came to assemble it, three holes lined up exactly right and one was off. It was easy enough to push the arms to the right place, but it should have lined up properly.

    Do you know of a technical drawing (preferably in mm, rather than some ancient method of distance measurement) of the PCB I can check the dimensions against?

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