A 3D printing virgin

The test print of the buffers is complete with mixed results even though the basic concept is fine:

I need to increase the tolerances between the buffer shaft and the housing, basically increase the cut through the buffer housing.
I printed 4 Buffers, my original one, then with a .25mm backing and a .5mm backing as per Andy's suggestion and finally with a filleted collar behind the head as per Pauls suggestion. Mine binned, the .25mm backing little better, the .5mm and the filleted buffers both look very good. I don't think there's a lot to choose between them.
My attempt at a retaining collar and spring mount (ala Jim McGeown) needs beefing up its just to fragile.

The sprung w iron test wasn't as successful, I think I have a measurement wrong somewhere so need to investigate. The horn block just won't slide between the w iron legs.

All up a curates egg but at least the printer is happy. I now have a wagon printing to check all is well with beefed up supports all the way around the chassis.
Back to buffer and sprung w irons testing tomorrow.

Happy days.

Mossy

 

I'm lucky, the NER used pretty much standard number plates I think the design changed in the late 1880's but basically 2 designs throughout its existence.
I added number plates to the V1/2 chassis but not having a clue how to do the lettering left it blank. I may well have to go back and retro fit plates (and lettering??) to each of the other wagons. It would be really good if with some of the standard bits, there was a way of importing sketches from one design to another, or even .stl files rather than having to redraw them each time. Where's the sage Sollis when you need him .

Mossy

 

Paul,

That was my plan, but the sketch > insert function only seems to allow .img inserts, or am I (as usual) missing something.

Mossy

 

I have got as far as this, a straight forward NER number plate, the game now is to copy it into a wagon project and get it positioned correctly.



Mossy

 

Thanks Lads,

You guys are a mine of information and really helpful!

Mossy

 

Paul

Your obviously a far better fumbler that I am . I just crash around getting no where very fast.

 

Yet another Fusion 360 question for my sages.

Fiddling about I have pulled a mesh number plate on to this chassis design and positioned it where required.
I then copied it (its currently sat in fresh air above the chassis), but whatever I do I cant rotate it through 180 degrees to add it to the other side of the chassis.

Question 2, is there any way the mesh(s) can be combined with the chassis, modify > combine won't let me select the mesh, or do I actually need to.

I'm back to being confused.com

Mossy

 

Paul

That works, cheers mate.

Mossy

 

Hi Andy/Paul,

I didn't have that problem with the number plates. I have a separate design for the plates, I simple edit the number and export a new .stl file, which I can now suck back into the wagon model and position it correctly. My original plan was to print them separately and glue them into place, this way is much better, I hope. Having said that I will take note of your comments if I need to import and change a model.

Printing still isn't going well, despite smothering the last wagon print with heavy and medium supports, I still have the curled bottom corner on a 45 x 45 print - it's getting very annoying and frustrating having to wait 6 hours to find out you've &*^%^ again.

Paul I will have a dig about for meshmixer it may well help with thing.

Mossy