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Ryan Brucks
05-02-2012, 11:37 AM
Hey guys,

I was needing to build a simple lid for a toy chest last night. Easy enough, but I wanted to try something that would avoid the possibility of finger slamming. The chest is around 14" x 22".

I had the idea to use a very thin, kerf bent lid that is so flexible that it bends in half to open up. Then a tiny piece of wood would be glued underneath near the front, and this would act as a "counterweight" to keep the bent lid open (ie, hanging there in a kind of semi circle with the chest mostly open).

Now I tried this using some 1/2" baltic birch. I only went around 6" into the kerf cuts, leaving a little less than 1/16" of untouched wood on all sides... and the stuff broke waaay too easily.

Is this a goofy idea? I take it that kerf bending is normally used for things like speakers or stairs where it doesnt bend over and over... but I seem to remember people making toys and stuff with kerf bending. Is there anything besides MDF that would work well, and allow for bending? If not, I might just get some kind of bamboo mat and just use that.


I did also consider finger pinching, thinking that could be reduced by sanding the edges a bit.

Todd Burch
05-02-2012, 11:51 AM
If you were near me I would give you a partial sheet of 3/8" bender ply.

Think a tambour door - glue thin slats of wood on a piece of canvas.

Todd

Ryan Brucks
05-02-2012, 11:52 AM
thanks, I like that idea.

Chris Padilla
05-02-2012, 12:11 PM
There's hardware available to prevent lid slams. Check out Rockler.

Ryan Brucks
05-02-2012, 12:38 PM
Chris are you talking about these little hydraulic stoppers?
http://www.rockler.com/product.cfm?page=10844&site=ROCKLER

If so, I thought about them, but it seems they are really only meant to stop the slamming at the edge. the most dangerous part of any door is right by the hinge where the most leverage is... so it doesnt look like it would help in that case since the finger would be toast before the door closed enough to hit the little stopper.

unless you mean a different thing, but I couldnt find it.

Ryan Brucks
05-02-2012, 12:39 PM
ah you must have meant these:

http://www.rockler.com/product.cfm?page=5432&rrt=1

Paul Muhlstadt
05-02-2012, 3:25 PM
I used these, http://www.rockler.com/product.cfm?page=410&site=ROCKLER. Using the formula, this box lid required 195 lb support. I chose 2 each 125 lb supports. The lid stays where it is raised and you pull it all most all the way down quickly to get it to slam shut.

231199

Ryan Brucks
05-02-2012, 3:38 PM
thanks, I got two of those as well.
those chests are beautiful... abit more involved than what I am doing. Mine are basically melamine boxes, slightly taller in the back, with handles that are just oval holes in the sides.

Jim Finn
05-04-2012, 6:39 PM
ON a toy box I made I used two safety closers so that you had to push the lid down to close it. IF you stopped pushing it even 1/2" away from closed it would stay there and not drop closed..

Mike Henderson
05-04-2012, 8:15 PM
Think a tambour door - glue thin slats of wood on a piece of canvas.

Todd

I like that idea, also. Good thinking.

Mike

Jim Rimmer
05-07-2012, 2:08 PM
Try these http://www.rockler.com/product.cfm?page=22046&site=ROCKLER
I used some on a blanket chest and love them.