[MRM RCModels]

Contest - Steam Turbine Small Production (Episode 1) - YouTube

Episode 1 - Project Intro.

Here is my submisson for the contest; a steam powered turbine. Updates will be weekly (at a minumim). Enjoy.

[Hirudin]

This looks like a fun project! Great video too! I look forward to the next installment. Will we have to wait until next Tuesday?

That prototype turbine wheel looks great to me. You said you don't like it though - was there a flaw with the machining or was there a problem with the design or something?

Also, thanks for the tip about keeping separate brass and aluminum tools. That's news to me too.

[MRM RCModels]

This looks like a fun project! Great video too! I look forward to the next installment. Will we have to wait until next Tuesday?

Nope . The test piece had a few blemishes and the chamfer wasn't deep enough for me. I made a lot of protoypes before getting the final product (see pic). It's always small things: chatter, trying different levels of chamfer, different work holding techniques.

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Small Turbine Production (Episode 2) - YouTube

Episode 2. Machining the Rotor Fixture Plate.

[LeeWay]

Excellent work so far on this. Looks great.
I turn a lot of brass on the lathe, but machine very little of it.
Just a few tips if you don't want to use brass tool plates in the future. You can spray them with clear lacquer or poly to keep the separated during machining. A good coat of heavy grease would serve the same purpose, but might wash out with the coolant you have.

Something I use sometimes instead of metal is phenolic. If you are able to get structural pieces of it cheaply like in drops, then it can be affordable too and it will last a long time as well. It is pretty hard on tools initially though.

I have used both methods, but like the phenolic the best. When I need it that is and that is rare. I recently decommissioned my last phenolic tool plate due to my plasma cutter. No longer need it.

Look forward to seeing your progress on it.

[AiR_GuNNeR]

Looks good. I love the enthusiasm at the end!

[MRM RCModels]

YouTube

The rotor tooling is complete. Can completely fabricate the rotor on the mill with ZERO hand finishing. Broke a tap, but learned a lot.

[LeeWay]

Looks like the video is set to private. Can't see it.

[MRM RCModels]

Fixed it!

Sent from my Galaxy Nexus using Tapatalk 4

[kvom]

Nice work. I should get one of those tapping heads; the bar stop on the side of the spindle is an excellent design.

[LeeWay]

Very nice.
Brass itself is easy to machine, however finishing to that level in anything is because of you and the machine.

[p38nut]

Love the work!!! Nice job.

[MRM RCModels]

TTE4 Turbine Base Plate - YouTube

Vacations over! Back to work making the turbine base plate.