Two-sided carves got you down?
Have you seen an amazing carve http://www.grunblau.com/SoapDishBMO.htm and wanted to know how the Flip-Board technique was accomplished?
I found a gadget for Vectric on instructables http://www.instructables.com/id/Flip-Board-Maker/
Who wants to make a plugin for Easel?
Video of FlipBoard technique for two-sided carving.
How can that work when there is a tool-width between the parts?
this works well, Iāve done it myself, thereās a YouTube video on how to carve a spoon that illustrates it well.
The reason it works is the tool size is cutting into space that is unused, until you flip it, then they line up perfectly.
standard instructables experiencesā¦
watch the videoā¦ be amazedā¦ make a paper prototype to prove it to yourselfā¦
OK, I didnāt notice the offsets.
I found this video on youtube that uses the same technique. Heās getting some really nice results.
I want a plywood soap dish =(
Bad thing for a guitar you would need a really oversized blank would be $$$$$
I had a template for this in easel at some point but switched to alignment pins because it was faster and wasted less wood. It is a great idea and it works very well but it 's just not for me.
That was the URL in my original post. Had I not surrounded it with parens, it would have showed.
I made the spoon and an automated script for the flip geometry:
and also that soapdish
I noticed a wood screw + fender washer on the piece after the flip.
Were the tolerances of the cut not enough to keep the flipped board in place?
Oh, youāre right. Totally missed that link when reading it the first time.
It seems to me that an app could easily generate the āflipableā tabs that lock the piece into place for any rectangular work piece.
fender washer \ screw were so no tabs were needed
better be safe than sorry. It probably would have worked just as well without the screws.
But it prevents the stock from getting pulled up.
Lateral movement was pretty much non existent. (as it should be) also the screws/washers wouldnāt remedy that in the first place.
Also, I have to admit i made some rookie cnc mistakes during filming, and didnāt want to redo the whole thing, so I edited most of that stuff out, because it was a proof of concept. But yeah there are still some suspicious activities going on if you really dissect every frame of it 
yeah, iād even be willing to adapt the script to easel for instance, canāt be that hard.
But I never use easel in my life but from what Iāve seen I always figured the origin is the home position and canāt be set to the middle point of the stock, which is needed for keeping the zero when flipping.
If Iām wrong, let me know, maybe Iād look into it. Or someone experienced in creating easel apps could convert my code to the easel api.
great image here explaining how the drawing origin can be used as work-center.
I recently tried this out on a little box project out of some 3/4" red oak and it worked very well. I made the pattern myself based on a 1/4" bit. It took a little bit of thinking to make sure things would line up properly, but it was not too hard to do manually.
I also tried pre-staining the wood for a 2 color look. That worked ok too.
First I cut a large outline of the area I wanted to stain:
(1/8" down cut bit)
Then the box lid detail:
(1/8" down cut bit)
Then I switched to a 1/4 inch downcut bit, because it was long enough to cut all the way through the 1/4 stock.
I then cut the box bottom and the cutout āpatternā
I then flipped it and carved the back part.
I was impressed at how well it wedged in. Though I specifically used a downcut bit on this part to help keep in place. I was afraid that a standard bit might lift it up and out - though it probably would have held fine.
On the whole I was very happy with how this worked. It was quick and easy to do the flip. And would be even easier with a gadget to make the flip cut perimeter.
However it does waist a lot of wood.
I actual plan on making a bunch more of these (Different styles and types) to sell. So for a production run I plan on using a pin style flip so I waste less material (and keep costs low)
Though for a quick one off project I prefer this approach, assuming I have a big enough piece of wood to do it.
