Two Stall Enginehouse

Re: Two Stall Enginehouse

Postby Bernd » Sun Feb 03, 2019 5:32 pm

I've just about completed my version of the chopper.

Here are all the parts. I just need to drill a few more holes and I'm done. It'll take a couple of more days of free time to get this done.

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The arm that holds the plate and blade clamp plate. There's a step milled in to the arm to receive the blade which is then held in place with the blade clamp.

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The razor blades have an aluminum backing which can be removed by prying them off with a #11 Xacto blade.

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Once the backing is off you have a nice thin (.009" thick) razor blade to mount in the cutting arm.

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With the clamp plate mounted ( on the back side of the arm) the blade has a reveal of 5/32" allowing for a 1/4" piece of wood to be cut.

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The blade can be positioned to present a new cutting surface thus using the whole blade before having to change to a new blade. Something the NWSL Chopper can't do.

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More of how this tool works will be come evident when I have it all completed. Will make building the engine house that much faster and fun.

Bernd
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Re: Two Stall Enginehouse

Postby TinGoat » Mon Feb 04, 2019 10:09 am

Hi Bernd,

Although I have never used a chopper, and I'm generally not too fussy with my cuts...

I have heard that one issue with the chopper is blade deflection.

The thin blade doesn't always cut straight down. It deflects left/right as it slices down.

This can be remedied by using a heavier chisel blade.

chopper.png
Showing thin blade deflection vs. chisel blade cut.
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Re: Two Stall Enginehouse

Postby Bernd » Mon Feb 04, 2019 11:00 am

TinGoat wrote:Hi Bernd,

Although I have never used a chopper, and I'm generally not too fussy with my cuts...

I have heard that one issue with the chopper is blade deflection.

The thin blade doesn't always cut straight down. It deflects left/right as it slices down.

This can be remedied by using a heavier chisel blade.

chopper.png


Yes. That is true also. But the holding method of the original NWSL Chopper's, I think they are on number 3, leaves a bit to be desired. Two screw hold the blade on the arm. In my mechanical mind the design is flimsy at best. I'm holding the whole blade length. You are also one step ahead of me in mentioning of using a thicker blade. More will be reveled as I finish the chopper.

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Re: Two Stall Enginehouse

Postby Bernd » Sun Feb 10, 2019 2:19 pm

I finally finished my chopper. I did add a shim to keep the handle nice and square to the cutting surface and a stop. I screwed a piece of thin (1/32"thick) steal sheet to the top and use a hook scale held by a neodymium magnet. The magnet seems to do a pretty good job. I may use a larger one if this doesn't work up to holding the stop.

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Re: Two Stall Enginehouse

Postby Bernd » Tue Feb 12, 2019 6:54 pm

After I got the chopper finished I finished the second wall beams.

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Next step was to print out both ends and glue them to the steal plate.

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The aluminum straight edges where set up and held in place with magnets and the first beams were cut and placed.

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That's it for now.

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Re: Two Stall Enginehouse

Postby Bernd » Fri Feb 15, 2019 4:54 pm

More progress made on the engine house.

The front wall.
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Rear wall.
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Both rear and front.
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Side view.
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3/4 rear view.
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3/4 front bird's eye view.
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3/4 front ground level view.
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Next will be the sheathing of the sides with 2" X 12" board. They'll get stained and the cut to length and glued on. In the mean time I'll be working on my GP38-2 belt drive chassis.

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Re: Two Stall Enginehouse

Postby ConducTTor » Fri Feb 15, 2019 6:42 pm

Damn dude that looks fantastic.


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Re: Two Stall Enginehouse

Postby Bernd » Fri Feb 15, 2019 9:06 pm

ConducTTor wrote:Damn dude that looks fantastic.


Thanks Alex. I know it looks like a lot of work, but it's very relaxing for me. More to come when I get the boards to do the siding. Of course there's plans for all the support structures that go along with a engine facilities.

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Re: Two Stall Enginehouse

Postby ConducTTor » Fri Feb 15, 2019 9:47 pm

You should make the roof removable so the detail inside can be seen.


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Re: Two Stall Enginehouse

Postby krokodil » Sat Feb 16, 2019 2:02 am

Bernd wrote:Got the first wall all studded in. Didn't break anything getting it off of the wax paper. I know one thing I'm going to do before I start the next wall and that is quickly build a chopper for now. Wood has been ordered for the board by board wall construction. Here's some statistics for one wall. It will take 80 individual boards at 2.45" long, making for a total length of boards to be used on one side 16'4" actual length. So I ordered 10pkgs. of 12 boards per pkg. at 11" long. These are HO scale 1" X 8". That'll make the boards 1.44" thick by 11.52" wide in TT scale close enough if you don't have a TT scale ruler at hand. The wood is from Northeast Scale Lumber.

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