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Thread: 3D printing stuff

  1. #16
    Should Get Out More Big Pete's Avatar
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    Default Re: 3D printing stuff


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    Quote Originally Posted by ZRX61 View Post
    I do now... altho I'm not sure why one would need to create a pattern for something that already exists & can be on my doorstep tomorrow morning?

    However, if It was a case of "I have a spiffy new gizmo, I'm gonna bugger about for a bit & see what it can do" then no harm, no foul.
    I've cast all my bender dies, they run at about 200+ per set for tube dies, they cost me about a fiver to make, and I can do them in different CLRs. So far I have 2 sets in 1", a set in 1 1/4" a follower in 1 1/2" (split the die due to a flaw) and soon will have 3/4" and probably 7/8" at the same time. It's saved me a fortune.

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  3. #17
    Should Get Out More Big Pete's Avatar
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    Default Re: 3D printing stuff

    had a foundry day today, using some of the plastic patterns I've been making, results below. Not perfect yet, but I'm rusty as hell at casting, I keep getting flaws and going, " oh yeah, I should have remembered that", which is aggravating. I've also been trying a new type of molding sand, which is taking some getting used to .

    todays useable bits
    IMG_20190428_180331.jpg

    xs650 valve cover
    IMG_20190428_180351.jpg

    another xs valve cover
    IMG_20190428_180359.jpg

    GoP belt buckle
    IMG_20190428_180432.jpg

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  5. #18
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    Default Re: 3D printing stuff

    Good stuff. I've been thinking about if it's possible to print a 2T oil tank for the TDR, and whether I'd trust it.

  6. #19
    Should Get Out More Big Pete's Avatar
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    Default Re: 3D printing stuff

    ABS would likely be up to it, and it should be oil tight, after that, it's down to the design being up to the loads, might take a couple of attempts to get it right, but it should be doable.

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    Really Bored daven's Avatar
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    Default Re: 3D printing stuff

    Quote Originally Posted by Big Pete View Post
    ABS would likely be up to it, and it should be oil tight, after that, it's down to the design being up to the loads, might take a couple of attempts to get it right, but it should be doable.
    what about breaking down over time?

    a quick google suggests PETG over ABS or PLA if it's going to be exposed to the elements.

  8. #21
    Should Get Out More Big Pete's Avatar
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    Default Re: 3D printing stuff

    not sure how well PETG copes with heat, or oil for that matter, I would have a look at some data sheets before I tried any of the usual materials. Paint and glue don't work very well on PETG IIRC, but ABS and PLA are ok.

  9. #22
    Should Get Out More demographic's Avatar
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    Default Re: 3D printing stuff

    Quote Originally Posted by cheb View Post
    Good stuff. I've been thinking about if it's possible to print a 2T oil tank for the TDR, and whether I'd trust it.
    Could you weld up a sheet steel one? Its full of oil so shouldn't corrode on the inside. Most oiltanks aren't too visible as they are hidden behind panels.

    Aluminium would look posher but not as easy to weld up.

  10. #23
    Should Get Out More Big Pete's Avatar
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    Default Re: 3D printing stuff

    getting my technique sorted now, pouring the finned covers is significantly more technically challenging than the stuff I've cast before.


    starting to get pretty good results, these need minimal cleanup to be good parts.

    IMG_20190511_094135.jpg

    ally bender die for 3/4" tube
    IMG_20190511_094243.jpg

    more side panels to make metal moulding boxes. The wooden ones warp after a while, and also get burned.
    IMG_20190511_094234.jpg

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  12. #24
    Should Get Out More Horse's Avatar
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    Default Re: 3D printing stuff

    Do you have to scale up the 3D master to allow for shrinkage?

  13. #25
    Should Get Out More Big Pete's Avatar
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    Default Re: 3D printing stuff

    yep, I've been going up by 2%

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    Default Re: 3D printing stuff

    We've got one very similar at work (just a bit bigger) and we use it for much the same sorta stuff you are. You can actually 3D print carbon tools directly with the right plastic, but the quality is generally not good eno8gh for "real" parts.

    We use it loads for printing jigs and fixtures. Stuff for holding things while they're glued mostly.

    It's amazing how quickly this tech is moving on. We also buy in 3D printed plastic parts that go onto road cars as covers etc. Stuff that would previously have been injection moulded and the like is now quicker and cheaper to make (in lowish volunes) by printing. You can paint it with final colours that are just as long lived as steel body panels now - basically indistinguishable.

    FWIW regarding oil etc. I think the OEM parts we deliver are Nylon (they're made with a new multi jet fusion process). Said parts have been painted with standard automotive paints and then exposed to all manner of fluids and sunlight, UV etc. They pass the tests just fine and are considered fit for use in visual areas etc.
    Last edited by Mr. Dazzle; 12-05-19 at 07:51.

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