Minnie Gears

[John ShepherdParticipant @johnshepherd38883]

[John ShepherdParticipant @johnshepherd38883]

I am in the process of building a 1″ scale Minnie and have just machined the parts for the crankshaft and first shaft gears. The original article says to silver solder the gears and the fabricated keyways but I was wondering if Loctite 628 or similar would do the job?

 

I have nothing against silver soldering but for this job I thought that perhaps Loctite would overcome the problems of cleaning up and there would be no trace of solder to be seen.

 

As I have no previous experience of using Loctite other than the thread lock types, any advice or comments would be welcome.

 

Regards

 

John

[JasonBModerator @jasonb]

My only reservation would be that there is no keyway cut into the actual gearwheel so all  the load will be applied through the joint which may be asking a bit much of the loctite. If you are just going to run on air then its unlikely to be an issue but if you are steaming under load?

 

A soft pencil (2b or similar) will leave a line that the solder should not flow over and you can always mount the soldered assembly onto a mandrel and take a light skim off to true things up and remove any excess solder.

 

I solderd my minnie and by the looks of things took a skim off but that was a while ago when my soldering was not as neat as it is now.

 

Jason

[John ShepherdParticipant @johnshepherd38883]

Jason

Thanks for you reply – looks like silver soldering it is. I have no aversion to  soldering but I was just exploring new methods of doing things and what you say makes sense.

 

Thanks also for including the photograph lnk , it is helpful to show how mine should (hopefully) look .

 

regards

[JasonBModerator @jasonb]

John

 

If they are of use there are a few more pics of my engine towards the end of this album, also some close ups of the damper hinge I took for someone last week.

 

J

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