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Milling Kato N scale E8/9 frame for speaker

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  • Member since
    March 2023
  • 9 posts
Milling Kato N scale E8/9 frame for speaker
Posted by 1943Mike on Friday, April 7, 2023 12:04 PM

I started putting a small layout together a year and three months ago. I've now installed over 20 standard (no sound) decoders in new and used analogue diesel locomotives I've bought from eBay and others. I admit I fried several decoders Embarrassed along the way but I've gotten better .. I hope. I'm now wondering if there are any companies or individuals who do milling for the speakers if I were to get some sound decoders for my Kato N scale E8/9's. I don't think Aztec does that anymore.

I do have a Dremel tool (cordless) and some cutting wheels, etc. but would be reluctant to ruin a frame.

Any suggestions?

Mike

  • Member since
    December 2015
  • From: Shenandoah Valley
  • 9,094 posts
Posted by BigDaddy on Monday, April 10, 2023 11:35 AM

Welcome to the forum, your posts are delayed in moderation for a while.

When I lived in Maryland, I had a friend with a milling machine.  He showed me how to use it and milling was simple.  I wouldn't want to do it with a Dremel but if you go that route, wear eye protection.

There are people, who I will call extreme hobbyists, like my friend the motorcycle nut, car nuts, machine shops and some gunsmiths who have the tools and might be willing to tackle a small job.

Henry

COB Potomac & Northern

Shenandoah Valley

Moderator
  • Member since
    June 2003
  • From: Northeast OH
  • 17,217 posts
Posted by tstage on Monday, April 10, 2023 1:14 PM

Mike,

You can also trying contacting small machine shops around your area.  A few might be looking for work and wouldn't mind doing a one or two-off project during off-times.

I would first figure out what speaker/baffle you want to install.  Next figure out where you want to install the speaker on the frame then draw up a quick but fairly accurate drawing (with tolerances) to give to the machine shop.  I would also give them the speaker baffle to use for checking fit.

The key is to remove as little of the frame as possible - i.e. just enough to get the speaker to fit so that the shell snaps on; retaining as much of the frame weight as you can so that your locomotive will be able to pull a good length of rolling stock behind it.

Tom

https://tstage9.wixsite.com/nyc-modeling

Time...It marches on...without ever turning around to see if anyone is even keeping in step.

  • Member since
    November 2005
  • From: Phoenix, AZ
  • 693 posts
Posted by woodone on Monday, April 10, 2023 2:12 PM

You want to use a 9MM X 16MM sugar cube speaker. The square part of the frame needs to be removed. You can do that with a small hacksaw.

that square is at the rear.

BECAREFUL!! Hang onto the square with a vise and saw off the main frame.

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