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Treasure Chest with Hasp

by rmm5t, published

Treasure Chest with Hasp by rmm5t Nov 13, 2015

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Summary

After building a rustic chest by hand from pine for one of my children, I thought it would be fun to design and build others via laser cutter. It turned out more beautiful than I anticipated, especially after organizing the cuts for a grain matched look.

The design assumes 5mm plywood (1/4" plywood).

Extra small parts are cut in case a piece breaks or the piece finds a resin pocket in the plywood.

The 2D diagram layout assumes a 0.2mm laser kerf.

Assembly Instructions

Assembly is relatively straight forward. Use standard wood glue to assemble all the parts. Be sure to keep the pieces in order to attain a grain-matched look. Be sure to have lots of clamps on hand. Rubber bands prove useful while trying to keep the top assembled while the glue dries. I used 3 penny nails for the hinge pins. Cut to length and super-glue in place (gel super glue highly recommended).

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Hi,
i opened the eps and dxf files both in AI and Autocad but measuring spaces i found that that the space between elements is 4,8 mm and not 5. why? This will create problems in construction time..
P.S. i want to cut mdf with my cnc so i need 5mm interspace..

Did you read the summary?

The 2D diagram layout assumes a 0.2mm laser kerf.

You have to account for the width of the laser's cut.

can you help me resizing to cut with a cnc? i need 5mm..

I'd love to help, but I can't afford to spend the extra time after work, family, and personal life. Sorry. Also, I'd be concerned about the ability to get the inside corners of the box joints using a CNC.

Yeah, I wish laser cutter software took into consideration the width of the laser's kerf like CNC software does for the diameter of the bit. It would make for easier to share source files like this.

This was the first time I fully designed something for any CNC-like machine. Next time, I'll probably keep the files for the "ideal" dimensions and adjust for kerf in a separate process.

Hi there

I would like to scale this up to 12mm stock to make a large chest, but at that scale there seems to be a large discrepancy between the size f the mortise & tenon joints (more than 1mm).

I was wondering if you might have a copy of this dxf file where the m & t joint match so that it scales well or if there is any other solution.

Thanks in advance
Alex

The included 3D sketchup file (treasure-box.skp) avoids the kerf. Only the 2D files include the kerf, so you should be able to re-build a 2D cutout without the kerf from the original 3D components.

Friend, good afternoon, please file this would not be possible to obtain MDF 3 mm

which laser cutter can you reccomend here ?

I'm not an expert enough to make a recommendation. I used a Rabbit QX-80-1290 80W laser cutter at my local Maker space.

I have just made one and it turned out really good, used 6mm ply i will up load photo of it when the glue as set.
thank you for uploaded the file and for it being in the right format

I love this treasure chest!! Do you perhaps have the pattern for 3mm wood?

In theory, you should just be able to scale the entire design down by 60% or up by 20% to get all the box joints to match 3mm or 6mm ply respectively. There will probably be a little bit of sanding necessary to account for the laser kerf, but it should get you really close.

This person used 3mm wood. It might be worthwhile asking how they scaled it:
http://www.thingiverse.com/make:176278

Treasure Chest with Hasp

what machine do you have?

I used a Rabbit QX-80-1290 80W laser cutter at my local Maker space.

Incredibly ingenious design. I applaud you.

Wow! Incredible work.

How hard would it be to modify this to use 3 or 6mm wood? Never used sketchup before and 5mm wood is isn't very common here.

I have just used 6mm ply and it turned out ok

In theory, you should just be able to scale the entire design down by 60% or up by 20% to get all the box joints to match 3mm or 6mm ply respectively. There will probably be a little bit of sanding necessary to account for the laser kerf, but it should get you really close.

This person used 3mm wood. It might be worthwhile asking how they scaled it:
http://www.thingiverse.com/make:176278

Treasure Chest with Hasp

Never thought of scaling the whole thing, thanks!
I'll give it a try when I get a chance.

Love the hasp. I've made a few of these but have never been happy with the strength of the original lock hooks. This is a big improvement

Beautiful ! Grain matching looks so good!

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