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Post by Telemachus on Jul 20, 2021 17:02:24 GMT
Anyone into it? I recently got a Creality Ender 3 v2. Hours of fun making “things” and in fact just watching it printing away is more interesting than watching telly. Plus one then has to get into 3D CAD programmes - so I’m currently trying to understand Fusion 360. Not particularly intuitive! Still, it is keeping me out of trouble.
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Post by thebfg on Jul 20, 2021 17:26:50 GMT
I'd love one, a decent one that is.
To be able to build housing and stuff to a specific design would be extremely useful.
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Post by Deleted on Jul 20, 2021 17:48:06 GMT
Anyone into it? ...in fact just watching it printing away is more interesting than watching telly. It must be amazingly stimulating. |
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Post by Jim on Jul 20, 2021 18:27:13 GMT
So what have you printed, we need pics.
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Post by Isambard Kingdom Brunel on Jul 20, 2021 18:46:35 GMT
Knit us a narrowboat Nellie.
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Post by Mr Stabby on Jul 20, 2021 18:52:32 GMT
So what have you printed, we need pics. He's printing a hat but it's not finished yet. |
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Post by Telemachus on Jul 20, 2021 19:00:13 GMT
I'd love one, a decent one that is. To be able to build housing and stuff to a specific design would be extremely useful. Yes. Although it does seem to be a lot of work - still getting even vaguely to grips with Fusion 360 after several days at it. Of course one can always download stuff from Thingiverse but that is cheating and anyway a lot of the designs seem to need dual extruders (for supports) and I only got a single extruder model. |
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Post by Telemachus on Jul 20, 2021 19:13:27 GMT
So what have you printed, we need pics. Well nothing too exciting yet! I am trying for bezels for the OLED displays for the alternator controller and the lithium BMS. For some reason I decided to use different sized OLEDs for them so I need 2 different designs of bezel. There is a reasonable design on Thingiverse for the 0.96” one but not for the 1.3” one, so that’s what I’ve been working on.     |
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Post by Telemachus on Jul 20, 2021 19:14:37 GMT
Bear in mind thes things are small, only 2” x 2” so it looks less untidy “in the flesh” at life size.
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Post by Jim on Jul 20, 2021 19:20:35 GMT
So what have you printed, we need pics. He's printing a hat but it's not finished yet. Best in the style of an old fashioned police box, might just fit. |
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Post by ianali on Jul 20, 2021 19:37:14 GMT
Since buying my Westfield car and joining the car club I have been amazed at the items they 3D print. I am in the process of choosing one to play with over winter.
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Post by duncan on Jul 20, 2021 21:34:07 GMT
It is something I find fascinating but have struggled to understand how it all works. The price seems to have come down a lot, out of interest, what was the cost of the raw material for the bezel? And where does it come from? Can you re-cycle plastics?
i have been looking at buying a wedge to mount my ring video door bell at an angle. It seems that all the ones available on ebay have been 3D printed.
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Post by Telemachus on Jul 20, 2021 22:14:28 GMT
It is something I find fascinating but have struggled to understand how it all works. The price seems to have come down a lot, out of interest, what was the cost of the raw material for the bezel? And where does it come from? Can you re-cycle plastics?
i have been looking at buying a wedge to mount my ring video door bell at an angle. It seems that all the ones available on ebay have been 3D printed.
It works by extruding a plastic filament through a small (0.4mm) nozzle onto a build bed - the filament being heated to the appropriate temperature (typically around 200C for PLA). The nozzle can be moved in the X, Y and Z planes by stepper motors. You take a 3d cad model and run it through a "Slicer" which is a programme that converts the solid 3d object into commands for the printer. The object is built up a layer at a time - 0.2mm is a "low definition" layer on my printer, 0.1mm is a high definition layer. Typically the slicer doesn't give you a totallly solid model, the outsides are of course apparently solid but interiors tend to be honeycomb type structure with a density of perhaps only 20%. The fill density is one of the hundreds of parameters you can change of course.
There are different raw materials but the beginner thing is PLA which is around £18 for 1kg. My Bezel uses 7g (according to the slicer programme) which costs £0.125. So when you have to redo it several times due to design cock-ups, it is not exactly going to break the bank!
I am not aware of a means to recycle the plastic, which is a shame. However PLA (Poly Lactic Acid) is not a petrochemical, it is derived from organic matter such as corn starch, sugar cane etc. and it does biodegrade. So I guess it is relatively environmentally friendly - compared to petrochemical plastic anyway.
Another popular but slightly harder to use material is ABS, which whilst not biodegradable is easily recyclable.
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Post by Telemachus on Jul 20, 2021 22:38:21 GMT
Here’s a neater version (another 12p down the drain!) with a better finish, mostly from slowing down the print speed for the first layer (it’s printed upside down). Still an annoying “scratch” though, not sure what caused that.  |
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Post by patty on Jul 21, 2021 17:40:25 GMT
Anyone into it? ...in fact just watching it printing away is more interesting than watching telly. It must be amazingly stimulating. ffs whose deleted themselves again? cannoot keepuup |
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