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More Sungka Boards Mk III ( I hope)

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Blog entry by robscastle posted 04-23-2019 07:18 AM 452 reads 0 times favorited 16 comments Add to Favorites Watch

Whilst determining what I would be doing with the pine Sungka boards I decided it would be a good risk to commence making more, reason being as every time my wife Aurora’s friends visit the Sunjka board production count increases.

So I pulled a piece of swamp gum from the rack, its dimensions were 150mm x 50mm x 2.6m, way too thick but the width was OK.

So out with the drop saw and cut it into 3 piecs about 850 mm long each.
Then I checked the bowing and twisting and determined I could rip each piece into two pieces. 1 x just under 19 mm (the OC off cut) and the other piece to make the boards about 28 mm.

Here is the raw material.

and one of the 3 pieces ripped ready to work.

You may notice some internal stress fractures have now been exposed.
I knew the timber has a few cracks present and I identified them as to be the Off Cut sections.
Undetered I continued on.

Once I had all three ripped I set up a thicknesser sled to finish them

Only one piece needed shiming so it went first.

Yeeks where did that split come from?

The remaining two did not need the sled so they went straight into the thicknesser.

The following results were then achieved.
Side A being the top of the board.

Side B being the underside of the board.

I was disapointed that so many internal defects were getting exposed, and wondered if in fact I was going to be able to use them after all.

Anyway as I had all the gear setup I ran the Off Cuts through the thicknesser as well.

I knew they were riddled with defects before hand but I wanted to see the final result.

I used the sled to thickness all three and the following shows the results.

The A and B are for identification purposes only as I have no imediate use for them.

Pity they are so badly damaged as there are some nice grain features within.

May be I should just cut them up and sent them to interested LJs around the world!

Stay tuned for what progress I make as I intend to continue up to a stage where the blanks are not suitable for Sunjka Boards.

So sadly thats where the (I hope) comes from.

-- Regards Rob



16 comments so far

View LittleBlackDuck's profile

LittleBlackDuck

2509 posts in 1182 days


#1 posted 04-23-2019 07:33 AM


... every time my wife Aurora’s friends visit the Sunjka board production count increases…
- robscastle

Hey rc, all your problem can be easily solved… padlock that bleeding door and don’t allow visitors!

If the bear trap welcome mat fails, you could always bow-tie them or body fill with CA and charcoal blend before scooping… either will solidify the crack.

Alternatively, rip thinner and laminate… should minimise movement and enforce the cracks. Looks too nice to give away.

-- If your first cut is too short... Take the second cut from the longer end... LBD

View Dave Polaschek's profile (online now)

Dave Polaschek

3667 posts in 944 days


#2 posted 04-23-2019 08:25 AM

I looked at those and thought of stabilizing them, but if you don’t want all that bother, just filling cracks with epoxy or CA as LBD suggests might get you some great looking boards.

Your offcuts look like the sort of thing I will dig through the shorts bin at the lumber yard to find and use when making a box and looking for something different. They’re certainly interesting to look at.

-- Dave - Minneapolis

View robscastle's profile

robscastle

6018 posts in 2566 days


#3 posted 04-23-2019 10:25 PM

LBD,
I already have a do not enter sign on the gate, along with Orange cones but the still keep comin!

Dave,
I think the filling may be worth trying, and yes I see a raised panel box coming up with the feature grain pieces. Too nice to just discard at this stage.

-- Regards Rob

View degoose's profile

degoose

7255 posts in 3716 days


#4 posted 04-23-2019 11:45 PM

Hey Robert, that swamp gum sure is pretty.

-- Don't drink and use power tools @ lasercreationsbylarry.com.au

View robscastle's profile

robscastle

6018 posts in 2566 days


#5 posted 04-24-2019 12:04 AM

Hello Larry.

Can only agree, the figue in the pictures dosn’t do it justice.

I had another look at it all this morning and two of the three pieces I cut may be suitable for the Sunjka boards.
I didnt see anything as attractive when I cut up one of the other pieces for the Shoe Cabinet!

The Off Cuts and possibly the third board will become a fairly nice figured box by the looks.

BTW thats some of your ex stock!

Hope you are enjoy your O/S lifestyle, take it easy on that Scooter!!

-- Regards Rob

View robscastle's profile

robscastle

6018 posts in 2566 days


#6 posted 04-24-2019 08:13 AM

I took a crack at board No 2 ( oh that is so sick)

This appeared to be the worse board.

I decided to use side B as the top, the reason being I thought I could possibly route out most of the massive crack visible.
So here is it:-

Now the result after routing.

A number of defects presented themselves, ... from the left.

The end crack.

Moving along a piece loose.

Another piece completly “gone”

and at the right yet another loose piece.

All a bit messy but I may be able to “fix” them

The method.
I prised open the L/H crack and inserted glue.
2. The missing piece I filled the area with sawdust and glue.
3. The small piece I simply glued back in.
4. The end piece I broke away and again glued back in.
Applied clamps eveywhere and left it to set overnight.

Good thing I dont rely on this as an income generator.

-- Regards Rob

View LittleBlackDuck's profile

LittleBlackDuck

2509 posts in 1182 days


#7 posted 04-25-2019 04:38 AM


LBD,
I already have a do not enter sign on the gate, along with Orange cones but the still keep comin!
- robscastle

Lucky us ducks can’r read… even those weirdos that like to read…


All a bit messy but I may be able to “fix” them
- robscastle

I hear fire is a good bonding agent

Don’t listen to that idiot statement just above… somewhere I posted something about harvesting sawdust… plant some sawdust seeds, go harvest it and use that to gum up the cracks… virtually invisible… and if not… squint!

PS. Hey just got back from an op and still high on anesthetic…

-- If your first cut is too short... Take the second cut from the longer end... LBD

View robscastle's profile

robscastle

6018 posts in 2566 days


#8 posted 04-25-2019 06:08 AM

OK its on again, ...next day,

The glue up,

Sanded everything

Profiled and radiused the edge

Went to use some Timber Mate to fill the cracks and found it was Rock hard lid must have been loose!

Put it on the stack for later went inside and drank beer!

I am thinking it may just make it under the radar.

-- Regards Rob

View LittleBlackDuck's profile

LittleBlackDuck

2509 posts in 1182 days


#9 posted 04-25-2019 11:43 PM


..... to fill the cracks and found it was Rock hard…..
- robscastle

I believe a steel mallet will soften up the cracks…

Hope you had a beer for me!

-- If your first cut is too short... Take the second cut from the longer end... LBD

View robscastle's profile

robscastle

6018 posts in 2566 days


#10 posted 04-30-2019 04:23 AM

Here it is finished, warts and all.
I glued in the broken pieces and sawdust and glue mix for the open cracks and areas missing material.
Sanded to 320grit and then the two grades of steelwool finishing off with a friction polish with white compound.

And the underside.

It will possibly end up as a “give Away” as the splits restrict the ability to sell it as a finished product.

Whats next:-

The other two boards are now on hold while I consider a process redesign using my Arbortech Mini Planer.

What is required is a completely new template with bigger holes and I am awaiting delivery of a couple of new router bits I ordered.

I have a 1/4” shank bowl cutter on order as I could not find a reasonably priced 1/2” shaft one, and a bottom profile bit to try and round the bottom.

Both the router bits are in the category of unknown as I am unsure if they will do what I am thinking.

-- Regards Rob

View LittleBlackDuck's profile

LittleBlackDuck

2509 posts in 1182 days


#11 posted 04-30-2019 04:57 AM


And the underside.
It will possibly end up as a “give Away” as the splits restrict the ability to sell it as a finished product.

- robscastle

and the ants scream YEAH!

Charcoal and CA, or some of that ground stone/brass/minced meat with CA will finish it off to a saleable item. Flawless is not always the best… just look at me… the missus pleads please!


...as I could not find a reasonably priced 1/2” shaft one…
- robscastle

If all else fails in the land of Oz… try this site, they have an incredible choice of bits and their shipping rates will not require a ransom of the grandkids.

Damn rc, if you get totally frustrated, take up chess… you’ll have more problems and no time to think!

-- If your first cut is too short... Take the second cut from the longer end... LBD

View Dave Polaschek's profile (online now)

Dave Polaschek

3667 posts in 944 days


#12 posted 04-30-2019 09:45 AM

Brass filings and CA might look quite fetching as a filler. Or go contrasting and find some blue something or other and have it look like stinky cheese. Some folks like that sort of thing!

I still think the wood looks gorgeous. Definitely too nice to discard, but challenging to work with. Known a few gals like that….

-- Dave - Minneapolis

View robscastle's profile

robscastle

6018 posts in 2566 days


#13 posted 04-30-2019 11:32 AM

OK sound like you know what your talking about, ...So I am prepared to hear and take counsel on the cracks and any suggestions to achieve a satisfactory solution to “improve” them

If you check the previous picture above LBD’s ”to fill the cracks” and then compare it to the ones below I have taken in closer detail below in an attempt to show the full extent of the cracking it may help.

1. This is another shot of the above referenced area after surface finishing.

2. These are the next recesses to the imediate Left.

3. This is the next recess further to the left.

4 The end of the board R/H end although damaged I think little could be done to improve it

I have to agree with Dave’s closing statement, .....as it is worth at least attempting a fix.

-- Regards Rob

View LittleBlackDuck's profile

LittleBlackDuck

2509 posts in 1182 days


#14 posted 04-30-2019 04:21 PM


... Known a few gals like that….
- Dave Polaschek

Your sweety (just love that reference DP) might object… but I accept rejects!


..... I have to agree with Dave s closing statement, .....as it is worth at least attempting a fix.
- robscastle
rc, in my Chrysalis I mention charcoal (I buy powder from artist shops) and CA

in case you want a distinct black contrast (even ebony wood filler will do… just think of my clock)... Timbermate wood filler mixed with contrasting coarse sawdust/shavings gives greater results than Timbermate by itself… harvest your own contrasting dust (not the BS).
Some of the shavings I collected from past pen blanks add pezzas for that bling affect

doesn’t help you though but may make you think ahead.
Some of this stuff (red gold dust, paint crystals and bra’s filllings [oh yeah])

can also impress…

Bottom line is get off your rrrrs (your crack) and highlight those other cracks and you’ll be able to double the Pesos!

-- If your first cut is too short... Take the second cut from the longer end... LBD

View Joe Lyddon's profile

Joe Lyddon

10585 posts in 4414 days


#15 posted 05-01-2019 12:01 AM

Yep, with a little colored epoxy or CA, I think you could make it salable…

You might have to finish all of the Holes with Epoxy finish to make it look better…

(??)

But, I think you could do it… What do you have to lose? :)

-- Have Fun! Joe Lyddon - Alta Loma, CA USA - Home: http://www.WoodworkStuff.net ... My Small Gallery: http://www.ncwoodworker.net/pp/showgallery.php?ppuser=1389&cat=500"

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