3 D Printing 16mm models

Anything related to the garden railway world that is not catered for in another board
User avatar
Peter Butler
Driver
Driver
Posts: 4006
Joined: Sun Sep 09, 2012 10:33 pm
Location: West Wales

Re: 3 D Printing 16mm models

Post by Peter Butler » Tue Oct 13, 2020 11:08 am

Boys and their toys!!!!! Good to know we don't have to grow up.
The best things in life are free.... so why am I doing this?

User avatar
ge_rik
Administrator
Administrator
Posts: 3700
Joined: Sun Oct 25, 2009 10:20 pm
Location: Cheshire
Contact:

Re: 3 D Printing 16mm models

Post by ge_rik » Tue Oct 13, 2020 1:54 pm

Peter Butler wrote:
Tue Oct 13, 2020 11:08 am
Boys and their toys!!!!! Good to know we don't have to grow up.
It's what keeps us all so youthful ....
Rik
------------------------
Peckforton Light Railway - Blog Facebook Youtube

User avatar
ge_rik
Administrator
Administrator
Posts: 3700
Joined: Sun Oct 25, 2009 10:20 pm
Location: Cheshire
Contact:

Re: 3 D Printing 16mm models

Post by ge_rik » Tue Oct 13, 2020 1:55 pm

The XYZ cube. There seems to have been a fractional Y shift about 2/3 of the way through the print, otherwise very pleased.
JPEG_20201013_135129_resize_12.jpg
.
Rik
------------------------
Peckforton Light Railway - Blog Facebook Youtube

User avatar
philipy
Moderator
Moderator
Posts: 2515
Joined: Sun Jan 30, 2011 3:00 pm
Location: South Northants
Contact:

Re: 3 D Printing 16mm models

Post by philipy » Tue Oct 13, 2020 4:21 pm

Well done Rik ( and Mrs Rik!).
Must admit I'd never even heard of this manufacturer before. What size is the build plate, it looks quite big?

The Y shift part way up is something that I get occasionally and I've never found out why. It appears to be with the slicer output since it is repeatable, but of course it could be in the original CAD drawing and the slicer is simply faithfully reproducing what it is fed!

User avatar
Andrew
Moderator
Moderator
Posts: 2119
Joined: Tue Jul 03, 2012 1:33 pm
Location: Bristol, UK
Contact:

Re: 3 D Printing 16mm models

Post by Andrew » Tue Oct 13, 2020 5:55 pm

Hi all,

Thought I'd join in the fun so have downloaded and am currently playing with Sketchup - I can see the potential, but I think I've got a lot more tutorials to watch!!!

Push/pull and offset tools are fun, but I'm currently struggling to combine the two in a way that ensures that shapes I create are solid... I'll let you know how I get on!

Cheers,

Andrew.

User avatar
ge_rik
Administrator
Administrator
Posts: 3700
Joined: Sun Oct 25, 2009 10:20 pm
Location: Cheshire
Contact:

Re: 3 D Printing 16mm models

Post by ge_rik » Tue Oct 13, 2020 6:44 pm

philipy wrote:
Tue Oct 13, 2020 4:21 pm
What size is the build plate, it looks quite big?
The potential build volume is 300 X 300 X 400
The heating element covers the whole area, so it might be feasible to print to the edges. My cheapo printer only years the middle of the bed.

Rik
------------------------
Peckforton Light Railway - Blog Facebook Youtube

User avatar
philipy
Moderator
Moderator
Posts: 2515
Joined: Sun Jan 30, 2011 3:00 pm
Location: South Northants
Contact:

Re: 3 D Printing 16mm models

Post by philipy » Tue Oct 13, 2020 7:45 pm

Andrew wrote:
Tue Oct 13, 2020 5:55 pm


Push/pull and offset tools are fun, but I'm currently struggling to combine the two in a way that ensures that shapes I create are solid
Andrew, Push/pull is essential, but I didn't get to grips with the Offset for quite a while and don't use it that often even now. It's useful on curved shapes but for rectangles/straight lines it's just as easy to simply measure and draw straight lines. "Follow Me" is also very useful as are the two "Intersect Faces With..." tools.

If I can help feel free to PM me.

Trevor Thompson
Trainee Fireman
Trainee Fireman
Posts: 151
Joined: Fri Oct 05, 2018 6:30 pm
Location: South West Wales

Re: 3 D Printing 16mm models

Post by Trevor Thompson » Wed Oct 14, 2020 12:44 pm

Andrew

That is interesting. The push pull I use all the time. The offset I have never used. I haven't found the follow me to be much use. When I want it to follow around a curve - bent pipes for example it doesn't work. No idea why. I also tried to make a ball with it and that didn't work either. I came to the conclusion that it was something which only worked properly in the paid version.

Trevor

User avatar
philipy
Moderator
Moderator
Posts: 2515
Joined: Sun Jan 30, 2011 3:00 pm
Location: South Northants
Contact:

Re: 3 D Printing 16mm models

Post by philipy » Wed Oct 14, 2020 2:42 pm

Trevor Thompson wrote:
Wed Oct 14, 2020 12:44 pm
Andrew

I haven't found the follow me to be much use. When I want it to follow around a curve - bent pipes for example it doesn't work.
It does work but I suspect it is very unforgiving of the geometry it is being asked to follow and then it says something about the path not starting or ending correctly, or a couple of similar messages. I have found that curves don't always select properly and it is necessary to highlight some or all of the individual segements.
Take a look at viewtopic.php?f=25&t=12019&hilit=a+stre ... 15#p140475 and then read my follow up reply to Peter Butler at 2pm the next day.

User avatar
Andrew
Moderator
Moderator
Posts: 2119
Joined: Tue Jul 03, 2012 1:33 pm
Location: Bristol, UK
Contact:

Re: 3 D Printing 16mm models

Post by Andrew » Wed Oct 14, 2020 3:14 pm

Thanks for the thoughts chaps, and the offer of help Philip - I'm looking forward to have another play with it, maybe this evening.

I drew something that looked vaguely like a tipper wagon body yesterday (from memory, just to practice), but think probably I need to get stuck into a project and see where it takes me...

Andrew

User avatar
philipy
Moderator
Moderator
Posts: 2515
Joined: Sun Jan 30, 2011 3:00 pm
Location: South Northants
Contact:

Re: 3 D Printing 16mm models

Post by philipy » Wed Oct 14, 2020 5:38 pm

Andrew,
I understand your desire to draw a wagon body, but I'd suggest starting with something much simpler to begin with, say the window frames that Rik and I were messing about with a few weeks ago, or something equally simple. The first thing I did was a simple 4 part platform seat ( two mirrored ends ( inner and outer faces) plus identical slat seat and back ), both to develop my drawing skills and then my first foray into actual printing.
Screenshot 2017-06-25 17.19.39.jpg

User avatar
Andrew
Moderator
Moderator
Posts: 2119
Joined: Tue Jul 03, 2012 1:33 pm
Location: Bristol, UK
Contact:

Re: 3 D Printing 16mm models

Post by Andrew » Wed Oct 14, 2020 6:31 pm

Good advice!

I wish I'd read it before I got stuck in to building the floor of my wagon! Several hours later I've got something that looks reasonable - although I've no idea if it'll make a viable print!

I'm attempting a model of an FR tipper wagon, built on the chassis of a 3T slate wagon - see: https://www.festipedia.org.uk/wiki/Four ... ate_waggon. I've started by measuring up the floor and underframe of my model of the slate wagon (itself 3D-printed, but not by me!), copying some of the details and adding some from the tipper. Here's where I'm up to - this is upside down:

FR tipper drawing 1.jpg

Couplings next, maybe, but not until tomorrow!

Cheers,

Andrew

Trevor Thompson
Trainee Fireman
Trainee Fireman
Posts: 151
Joined: Fri Oct 05, 2018 6:30 pm
Location: South West Wales

Re: 3 D Printing 16mm models

Post by Trevor Thompson » Sun Oct 18, 2020 11:25 am

philipy wrote:
Wed Oct 14, 2020 2:42 pm
Trevor Thompson wrote:
Wed Oct 14, 2020 12:44 pm
Andrew

I haven't found the follow me to be much use. When I want it to follow around a curve - bent pipes for example it doesn't work.
It does work but I suspect it is very unforgiving of the geometry it is being asked to follow and then it says something about the path not starting or ending correctly, or a couple of similar messages. I have found that curves don't always select properly and it is necessary to highlight some or all of the individual segements.
Take a look at viewtopic.php?f=25&t=12019&hilit=a+stre ... 15#p140475 and then read my follow up reply to Peter Butler at 2pm the next day.
Well that is interesting! I like the pipework. I will have another look at the follow me tool!

Trevor

User avatar
philipy
Moderator
Moderator
Posts: 2515
Joined: Sun Jan 30, 2011 3:00 pm
Location: South Northants
Contact:

Re: 3 D Printing 16mm models

Post by philipy » Sun Oct 18, 2020 1:07 pm

Something I was trying to demonstrate to somebody else:

Draw the line in the shape you want, then draw the cross-section you want ( make sure it is touching the end of the line)
skeleton.png

Select the line ( make sure you get ALL of it)
Select the Follow Me tool and click on the cross-section shape... magic happens!
extruded.png
BTW, the two versions show the difference between the default 24-segment circle on the rhs and a 96-segment circle on the left.

User avatar
ge_rik
Administrator
Administrator
Posts: 3700
Joined: Sun Oct 25, 2009 10:20 pm
Location: Cheshire
Contact:

Re: 3 D Printing 16mm models

Post by ge_rik » Tue Oct 20, 2020 10:30 am

My latest project has been to replicate the open wagons which I constructed from my own resin castings. I was interested in how a 3D printed version might compare. The originals used Hartland Loco Works mini-series wagon chassis which, at the time, could be picked up for less than £10 each. They have now ceased production and so I have produced my own version which uses the same dimensions but has more appropriate W-iron leaf spring suspension than the HLW version. Still a bit more tweaking to be done - the internal planking disappears because, I am reliably informed, of the 'elephant's foot effect' so I need to compensate for that. But, I'm quite pleased with the outcome. All drawn in TinkerCAD BTW.
IMG_1208.JPG
.
IMG_1213.JPG
.
IMG_1214.JPG
.
IMG_1215.JPG
.
Rik
------------------------
Peckforton Light Railway - Blog Facebook Youtube

Post Reply

Who is online

Users browsing this forum: No registered users and 4 guests