Loco Frame (work in progress)

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triplus
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Joined: Mon Dec 12, 2011 4:45 pm

Re: Loco Frame (work in progress)

Post by triplus »

Great. Always nice to see how FreeCAD is used to actually produce something!
whirlybomber
Posts: 69
Joined: Wed Aug 14, 2013 6:54 am

Re: Loco Frame (work in progress)

Post by whirlybomber »

Alrighty then, long time no post, but here are some progress picutures of my full(model)size mockup in MDF.
IMG_0029_edit_600pix.JPG
IMG_0029_edit_600pix.JPG (66.88 KiB) Viewed 2519 times
So this is looking from the No. 2 end to the No. 1 end (ignoring all the rubbish in the workshop please...).
There are only a few pieces missing from the 'bottom' of the assembly, the coupler pockets and the apron side plates. There are also some trim pieces missing from along the side of the fuel tank. But the main pieces of the bottom half are there. The bulkhead frames and the top skirt piece are just sitting in place, not glued.
IMG_0031_edit_600pix.JPG
IMG_0031_edit_600pix.JPG (38.45 KiB) Viewed 2519 times
Sorry about the ugly angle of the photo, but this shows that the floor and sides are complete in the fuel tank area in the middle of the frame.

So the next thing to do will be to take off the pieces sitting in place, flip it back over and then cut and fit the Apron side plates and the coupler pocket pieces. Then I should be able to sit the frame right-way-up while I work on the body sides, hinges and roof.

I did catch one oops that I will have to fix before I cut steel.
IMG_0012_edit_300pix.JPG
IMG_0012_edit_300pix.JPG (18.26 KiB) Viewed 2519 times
On the bottom of the fuel tank, see the pencil marks where I have the tab/slot bits overlapping. D'oh!

Also. The whole thing is ~1700mm long by ~300mm wide by ~450mm high.

EDIT: speeling :lol:
triplus
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Joined: Mon Dec 12, 2011 4:45 pm

Re: Loco Frame (work in progress)

Post by triplus »

Great progress!
whirlybomber
Posts: 69
Joined: Wed Aug 14, 2013 6:54 am

Re: Loco Frame (work in progress)

Post by whirlybomber »

More 'photo's.
IMG_0034_edit_300pix.JPG
IMG_0034_edit_300pix.JPG (16.45 KiB) Viewed 2467 times
So this is the body upside down, looking at the back of the Apron and the Coupler Pocket. Any oversize gaps visible are entirely due to my over eager sanding of 1.5mm radii to square corners.
IMG_0038_edit.JPG
IMG_0038_edit.JPG (12.88 KiB) Viewed 2467 times
IMG_0041_edit.JPG
IMG_0041_edit.JPG (12.87 KiB) Viewed 2467 times
IMG_0046_edit.JPG
IMG_0046_edit.JPG (16.73 KiB) Viewed 2467 times
These three show the Staff Exchanger Cutout in the frame. In the first pic you see it with some infill to keep to piece from snapping before it is assembled. Second pic is the cutout with the infill removed after assembly. Third pic skips ahead a bit to the addition of the Body Side Panel. You can see some cutouts in the edge for other pieces that will frame in the pocket. Typically you would get a cast staff exchanger assembly in the correct scale to fill the hole.

Lastly this is the overview with one Body Side Panel on. After the other side panel goes on their will be a slight pause while I wait for some new end mills. I need to remember the difference between Z+25mm and Z-25mm......
IMG_0043_edit_600pix.JPG
IMG_0043_edit_600pix.JPG (70.06 KiB) Viewed 2467 times
triplus
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Posts: 9471
Joined: Mon Dec 12, 2011 4:45 pm

Re: Loco Frame (work in progress)

Post by triplus »

Nice and it is great you started with wood to see if something will not match before using steel. Good strategy!

Anyway you have quite interesting project going on and keep us posted.
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