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[Landlocked]

Does anyone have a good technique/tool to create beaded tongue and grooved planking effects at 1/16th scale?

My steamboat's exterior deck house siding is horizontal beaded tongue in groove (interior is double beaded!!).  Grooves are on an  8  mm spacing.

A veining bit works for normal tongue in groove but how do you create the beaded look at scale?

Single boards techniques will work but would prefer to groove a wider board to simulate multiple planks.

Thanks

Landlocked

[tigertiger]

If the bead were, say 6mm (1/4") on the original, then to scale is under 0.4mm.

The only thing I could suggest, with such fineness is to find someone with a milling machine to create a stamp. A bit like a hollowed out knife edge.

This fine detail could well be lost in the paintwork. Unless of course you paint, and then stamp. Before assembly.

I don't know what I am talking about, just bouncing an idea.

[Landlocked]

Tiger,

Sorry, I had already made the scale conversion. 

About 8mm is final spacing. 

I'm wondering if I can file a profile onto a scraper and then pull it across the surface to make approximately shaped grooves. 

Landlocked

[Roadrunner]

There is a trick to that...

Take a flat sheet of the material your using.

Mark out the spacing between each plank.

In your case 8mm then with a straight edge using a sharp blade slice a grove into it, then take the knife and at around 45 degrees slice out a v shape carefully.

You should now have what looks like this in profile   -------v----------v----------v---------- (forgive the crudeness of the txt drawing)

Now take a bit of sand paper/wet or dry fold around a bit of plastic card 0.5 mm should be ok, and rub it up and down the v grove to create rounded edges.

To finish it off take your knife again and at the base of the v cut into it but not all the way through this way when its stained or varnish the line will look like a simulated single plank, butted against the next.

This is how i would do it with a singular sheet. But it may be worth looking at profiling single planks if this method dose not work out for you.

This is a slow method so rushing will harm the effect, it may be best to do a tester first see if it works out before committing to a full sheet.
 

[tonyH]

Is the final finish to be painted or stained?

If painted, you could cut the 'V' notches as suggested by Roadrunner, sand off the edges very lightly and then drop a fine plastic rod into the slot.

Tony

[Landlocked]

The planks are painted.  Evergreen has 1mm half rounds.  They'll be a little overscale but could work.

On reflection, there's a little sheer so individual planks may work better than trying to keep curved lines parallel on a sheet (and will make knife slips a little less damaging).

Thanks guys,

Landlocked

[tonyH]

Hi Landlocked,

Personally I'd try the 0.030 round rod rather than the half round because (a) the smaller size would be a better scale after painting and (b) it would sit in a 'V' groove better and you wouldn't have to juggle it to the correct orientation.

Tony

[tigertiger]

Tiger,

Sorry, I had already made the scale conversion.  

About 8mm is final spacing.  

I'm wondering if I can file a profile onto a scraper and then pull it across the surface to make approximately shaped grooves.  

Landlocked

I think you misunderstood my post.

If the bead at 1:1 was 6mm/8mm/10mm.  I was trying to determine how big the bead would be at scale.

I did understand that the planking ,at scale, would be 8mm.

[tigertiger]

If you are doing simple planks, you could try making a scraper to draw along the edge of the plank as in the fig below.
You may need to watch the run of the grain to stop the scraper drifting.

And round/smooth off the edges of the tool where you don't want it to cut.

[RaaArtyGunner]

Simple and effective

 

[Landlocked]

All good suggestions.  Time to play in the shop.

Thanks,

Landlocked