W.Allchin steam traction engine

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un1corn
Posts: 131
Joined: Sat Dec 26, 2015 2:06 pm

W.Allchin steam traction engine

Postby un1corn » Fri Nov 15, 2019 12:29 pm

This is probably the most complex project I have done to date, It took almost as long to assemble the parts as it did to create them.
The file is far too large to include here regrettably.
Attachments
ATE 7.JPG
ATE 7.JPG (436.26 KiB) Viewed 1070 times
ATE 2.JPG
ATE 2.JPG (573 KiB) Viewed 1070 times
ATE 1.JPG
ATE 1.JPG (688.5 KiB) Viewed 1070 times
un1corn
Posts: 131
Joined: Sat Dec 26, 2015 2:06 pm

Re: W.Allchin steam traction engine

Postby un1corn » Fri Nov 15, 2019 3:24 pm

More screenshots.
Attachments
ATE 10.JPG
ATE 10.JPG (242.37 KiB) Viewed 1035 times
ATE 9.JPG
ATE 9.JPG (635.1 KiB) Viewed 1035 times
ATE 8.JPG
ATE 8.JPG (672.96 KiB) Viewed 1035 times
chrisb
Posts: 19703
Joined: Tue Mar 17, 2015 9:14 am

Re: W.Allchin steam traction engine

Postby chrisb » Fri Nov 15, 2019 4:41 pm

This is very impressive. Can you tell us more about how you modelled it? Which workbenches did you use, Part/PartDesign? Did you use an assembly workbench?
vocx
Posts: 1915
Joined: Thu Oct 18, 2018 9:18 pm

Re: W.Allchin steam traction engine

Postby vocx » Fri Nov 15, 2019 5:28 pm

I think when making complex models like this a minimum of information should be provided by the author, something like
  • number of bodies or individual parts
  • time to model
  • time to assembly
  • separate files or all in one file
  • Assembly workbench or not
  • source. Is this from a manual, book, magazine? Is this an actual part that you have physically?
  • size of file. Files with many parts are easily in the 15 MB to 30 MB range.
  • FreeCAD version. Surprisingly, many showcasers build their models with an old version of FreeCAD. Maybe it's because they take several weeks to finish their model, so they need to use a stable version, and can't be using the most recent one. I remember seeing complex models like this one, and the author saying they made it on 0.17 or earlier.
  • Computer specifications. Related to the file size and number of parts, maybe it makes sense to mention the resources needed to model a complex assembly like this. Does the computer have 30 GB? Top of the line CPU and GPU? I have built models with hundreds of parts and the file size is 15 MB, and it already struggles with 12 GB RAM. But my computer is definitely not the most powerful.
I think adding this information would be great. It also saves time for those people who will ask those questions anyway.
triplus
Posts: 8802
Joined: Mon Dec 12, 2011 4:45 pm

Re: W.Allchin steam traction engine

Postby triplus » Fri Nov 15, 2019 5:31 pm

Beautiful.
mlampert
Posts: 1381
Joined: Fri Sep 16, 2016 9:28 pm

Re: W.Allchin steam traction engine

Postby mlampert » Fri Nov 15, 2019 7:13 pm

There are no words to accurately describe the joy I get from looking at those screenshots. THANK YOU!
And please feel free to post more .... :D
Rana
Posts: 11
Joined: Tue Oct 01, 2019 6:37 pm

Re: W.Allchin steam traction engine

Postby Rana » Fri Nov 15, 2019 9:07 pm

:D Amazing , impressive work :!: :!:
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ppemawm
Posts: 560
Joined: Fri May 17, 2013 3:54 pm
Location: Manhattan New York

Re: W.Allchin steam traction engine

Postby ppemawm » Sat Nov 16, 2019 12:26 am

un1corn wrote:
Fri Nov 15, 2019 12:29 pm
This is probably the most complex project I have done to date
Fantastic, absolutely fantastic.
Thanks for the screen shots, un1corn.
"It is a poor workman who blames his tools..." ;)
un1corn
Posts: 131
Joined: Sat Dec 26, 2015 2:06 pm

Re: W.Allchin steam traction engine

Postby un1corn » Sat Nov 16, 2019 11:54 am

Re information requested
I started this model on 7th July 2019 and completed the assembly on 20th October.
There are 723 individual parts + 20 sub-assemblies + several calculation sheets, template models for LH/RH parts and inner formers where the thickness and or extrude tool would not cope.
I am using FreeCad V0.18, parts created mostly in PartDesign and Sketcher WB's and assembled with A2plus Workbench V0, 4.25.
Items such as the spoke and spud screws and rivets were generated where possible as an array in Draft WB which made it easier to import and position in the assembly.
The source of these and the greater majority of the model plans of the images I have posted were sourced here:- http://www.vapeuretmodelesavapeur.com/telechargements4/ courtesy of JDW Draughting services, 12 Brightwell Street, Papakura, New Zealand.
Julian De Waal is very helpful if you need to contact him with any questions.

Bear in mind that as I am now 76, well and truly retired, have some mobility issues and have been widowed for close to 10 years, I have plenty of time to devote to these model, I wish I was still in the position to physically make them.
I have attached a PDF sheet showing the details of my PC etc.
I hope this answers most of the questions raised.
Attachments
PC_FC info.pdf
(473.76 KiB) Downloaded 50 times
Last edited by Kunda1 on Wed Nov 20, 2019 2:07 am, edited 1 time in total.
Reason: updated thread with correct workbench name
chrisb
Posts: 19703
Joined: Tue Mar 17, 2015 9:14 am

Re: W.Allchin steam traction engine

Postby chrisb » Sat Nov 16, 2019 2:00 pm

Thanks for the information. As there are several discussions about assembly this is a valuable demonstration of the capabilities of a2plus.