Jump to content
 
  • entries
    400
  • comments
    930
  • views
    288,061

Braking a Binnie - Part 1


Fen End Pit

1,913 views

Yes, I did get my spelling right and mean braking not breaking.

 

The Binnie Engineering Hudson Tipper wagon is a staple of 16mm narrow gauge model railways. Understandably Fen End Pit has quite a few and one of them was converted many years ago to have brake standard to give a little variation. I'd often thought about converting a couple more to give one braked wagon per train of skips but never got around to it.

 

blogentry-7212-0-16720600-1487886541_thumb.jpg

 

I decided that this might be a good challenge for my new 3D printer so I drew up the components which I'd need in Onshape. I 'modeled' 3 components, the skip extension, the brake wheel support and the hand wheel itself.

 

blogentry-7212-0-86781800-1487886798.jpg

 

blogentry-7212-0-63691900-1487886938.jpg

 

blogentry-7212-0-59252200-1487887005.jpg

 

Finally, more for my own amusement and experience than for any real purpose I tried the assembly functions and put the virtual pieces together.

 

blogentry-7212-0-61190400-1487887139.jpg

 

The resulting models were then downloaded from Onshape as .STL files which are them imported into Cura, the slicing software for my 3D printer. I positioned the parts on the bed of the printer, rotating the parts to give the best orientation for printing, in this case lying the brake support down rather than trying to print it vertically. I've chosen to print this with the finest settings and as you can see from the time estimate on the screenshot it ain't quick.

 

blogentry-7212-0-38233200-1487887628_thumb.jpg

 

The output from the printer was pretty good given the relative cheapness of the printer. Unfortunately being black they were very difficult to get a decent photograph of. You can see the 'Raft' which the printer put underneath the parts in the printing process and the support structure added by the slicer to support the top of the brake end extension.

 

blogentry-7212-0-50325000-1487888288_thumb.jpg

 

I've modified the Binnie chassis to remove some parts from one end to clear the new brake platform. This took just a few minutes with a piecing saw and scalpel.

 

blogentry-7212-0-58155400-1487888436_thumb.jpg

 

The new brake platform, support and wheel fit on quite nicely. I'll need a little bit of filler to smooth down the joint but I'm rather pleased with result.

 

blogentry-7212-0-48596900-1487888566_thumb.jpg

 

I'll post some more once it is assembled and painted.

 

David

  • Like 5

5 Comments


Recommended Comments

  • RMweb Premium

Interesting. I am reading a lot of stuff about 3d printing with the intention of having a go eventually so stuff like this is very educational. Thanks. 

Link to comment
  • RMweb Gold

Remarkable! Is this printed in PLA or ABS?

I used a black PLA 1.75mm filament, the Wanhao duplicator i3 plus is unmodified, fitted with a .4mm noozle. nothing clever or modified (at this stage, I'm contemplating putting an upgraded fan and fan housing at some point)

David

Link to comment

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
×
×
  • Create New...