The New 3D Printing Thread

I was the one who found the rods

Indeed you were, I only printed some samples to see how well they printed and if they were accurate in size etc...  Thingiverse is great, but you have to be careful as sometimes the models published are untested as some designers don't have printers to test or they leave it to others to test print their creations.  As these (and the adaptors) are fairly quick prints I thought I'd take a break from printing PPE equipment for local healthcare people and run some test pieces off

the knobs on the rods are the most difficult thing to design since you can't really measure it with the ruler.

I've recently been experimenting with TPU filament, this is far more flexible than PLA etc... for example here is a print of my model of Daisy, as you can see it is far more flexible.  How well it can be painted and how well the paint stays is another matter...

from the looks of it, the only option is spray paint. Even then, the paint may be chipped off after a period of time.

Whoa...thats really flexible. You are probably right, with that much movement, paint might find it hard to stay adhered to the plastic.

sharpie may do the trick but the result will definitely not as good as spray paint.

(06-04-2020, 10:38 AM)Super Wrote: Whoa...thats really flexible. You are probably right, with that much movement, paint might find it hard to stay adhered to the plastic.

Exactly my thoughts, it is more like rubber than plastic when printed, it has its applications, for example I've been using some black to print replacement tyres for Hot Wheels cars lol

I've got some spray paint primer, I'll have to give it a go, spray it and then see if it flakes or whatever when flexed, I'll let you know

(08-11-2019, 08:12 PM)Nigels Wrote: Hi Super,

There are machines out there that can make much larger pieces, but at a much larger price also. They are commercial machines and cost 10's of 1,000's. For a change these smaller machines are a spin off from the commercial offerings, one of the main differences and the reason for the cost difference is that the larger commercial machines are often driven using a laser with a set of moving mirrors which effectively draw the design into the layers.

With the cheaper designs they use a different technique to expose the light sensitive resin to light. In fact these very cheapest models actually use spin off tech from the mobile phone world. Fundamentally it uses a phone LCD screen driven by a phone graphics chip to display the pixels to be printed and the remainder to be blocked and a UV light source shines through this onto the bottom of the resin vat which is made from a special type of transparent film. This causes the resin in contact with the plastic to solidify which merges with the previous layer, etc...

So fundamentally it all sounds very easy, but in reality is not

This printer seems to be getting rave reviews everywhere, seems I picked a good one again, just like I did with the Ender 3 when i was dipping my toe in the FDM market

Some years ago I was speaking with the handy man at work, discussing how 3D Printers worked, including the then industrial exclusive resin printers. I Proposed this very thing, with a UV curable resin he had just been talking about, a UV Lamp and a butchered Samsung tablet (because it would be android based and could be easily rooted and a custom rom installed that would allow the image to be controlled from a remote source (ie the computer) Having had 0 experience with 3D Printing that was as far as it got, I had no idea about slicing etc and never pursued it. who knew that years later my wife would be the one that got into 3D Printing and I would start to learn a bit about all that, only to then be hunting spare parts for repairing my kids trains that i buy job lots of broken ones of. I beleive my wife is now interested in the resin printing but is concerned about having everything around small children.


 

(06-17-2019, 03:01 PM)2ARail Wrote: Nice to see you've managed to adapt my 3D meshes into Plarail meshes, although I'd suggest altering how you have skewed them in some ways.

https://www.thingiverse.com/thing:3330444

https://www.thingiverse.com/thing:3330401

Boiler and chimney on the Manning Wardle looks really off, any way you can rework your mesh to have a circular smokebox?

These have been taken down, was this you or thingiverse? My wife is just getting into 3D Printing and I am putting in requests for train parts for my 2 boys trains on a more frequent basis now. I am intending on learning how to do the 3D Modelling myself to make things as impressive as a replacement shell!

Like, someone on shapeways created faces for Alfred customs. I might get one sometime in the future.