1/6th scale 1890's 30ft navy steam cutter (live steam)

[tghsmith]

the main bearing tops were fitted, the base was machined for the crankshaft ,, today it may get bored for the crank.. the crank looks much more finished..

 

[Boswell]

the main bearing tops were fitted ...

this is looking great. Thanks for sharing your progress

 

[tghsmith]

drilled and reamed the base-frame,, fitted the crank,, the base needs lots of cleaning up and most likely some dremel machining..

 

[tghsmith]

started working on the connecting rods,, the stirrup straps and small wedges will get interesting,, used my little lathe dog for the first time, I've had it for years it came with my lathe,, used a little "can" aluminum to protect the brass..

 

[tghsmith]

the bearing were machined for the straps and to fit the rods.. have to admit this LMS mill with the added DRO's can do some great stuff..

https://imagizer.imageshack.com/v2/640x480q90/924/ORmxfe.jpg

 

[tghsmith]

started working on the straps that will hold the rod bearings to the rods,, had to make a fixture to get the correct bends,,

 

[Downunder Bob]

Great work I always admire these live steam models. The amount of power the produce is quite amazing.

 

[tghsmith]

basically have the bottom end of this engine together,, completed the "navy" type connecting rods and crossheads.. had to add an 1/8" to the frame feet do to some frame connecting rod interference,, as on today with just the weight of the block holding things in place all is turning nice and smooth.. time to mark,drill and get this bolted together..

 

[Downunder Bob]

basically have the bottom end of this engine together,, completed the "navy" type connecting rods and crossheads.. had to add an 1/8" to the frame feet do to some frame connecting rod interference,, as on today with just the weight of the block holding things in place all is turning nice and smooth.. time to mark,drill and get this bolted together..

What are Navy type con rods? I've not heard the term before

 

[tghsmith]

stuart turner con-rods as per plans have a bolt and nut on each side holding them to the crank,, the US navy during this time used a set of bearing blocks fixed to the con-rod with a strap and wedges,, most likely the idea was that if the bearings needed replacement a new set could be installed quickly with minimal shimming or other work needed.. still have a ton of finishing and cleanup work to do..