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Tongue Drum Journey #2: Tongue Drum Journey No 2

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Blog entry by robscastle posted 06-05-2021 02:03 AM 371 reads 0 times favorited 1 comment Add to Favorites Watch
« Part 1: Tongue Drum Journey No 1 Part 2 of Tongue Drum Journey series Part 3: Tongue Drum Journey No 3 ( but actually post 2a dummy spit) »

OK up and at em early today,

a few maintenance activities are required before i get stuck in

1 Fit a new blade to the table Saw
2. Removal of buried treasure and
3. Remove a splinter which has been driving me mad by letting me know its still there every time I touch something.

I did a blog on 2 and 3 so their fixed.

https://www.lumberjocks.com/robscastle/blog/132567

I knew I was up for some heavy duty sawing so fitted a new blade.
(and I think that’s all that needs to be said about that)

The stick of timber has a small amount of off square, like 2mm across 145 138 mm width.

The only way I thought I could correct it was by hand planing the high spots off.

You will understand why this is so critical later. reinfofcing TherealSteveN’s comments in my project.

https://www.lumberjocks.com/projects/420022the

Sorry about the shadows but its a bit early here.

I managed to get a reasonable square accuracy and was satisfied with that.

Now some calculations were needed,

The timber is 136 mm x 145 mm so I wanted max width on the planks so decided to rip along the 138mm side hoping to get six 20 mm planks able to the finished to 19mm.

The saw kerf is 3mm, 3mm x 5 equals fifteen mm so there goes 15mm of timber in sawdust.
6 x planks at 20 mm is 120mm total.
120mm plus 15 mm is 135mm, Total timber is 136 mm so it should work with nothing ar screw ups (1mm) to spare!

So I decide to set up.

Width 20mm

the height is 145mm way too big a cut for my saw 145 mm divided by 2 is 72.5 mm but i can get 90 max but set the height to 77 mm or thereabouts

OK here comes the results

Yes it worked!

I got my anticipated six planks,

laid out side B is the result

another view of side B

There is possibly about 0.5 of a mm run out.

However Side A is a little worse.

As you can see there is one plank being 5A showing a considerable amount of run out.

So out with the calipers.
No 1

Rats they are all under size and all over the place!

No2

No 3

No 4

No 5

No 6

That’s a little disappointing, and I am not sure what to do, so its stop work and go for a coffee, Netflix and think about a solution.

-- Regards Rob



1 comment so far

View pottz's profile (online now)

pottz

17598 posts in 2105 days


#1 posted 06-05-2021 04:01 AM

damn rc living on gilligans island you and the professor do some amazing stuff with woodworking, ;-))

-- working with my hands is a joy,it gives me a sense of fulfillment,somthing so many seek and so few find.-SAM MALOOF.

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