Monthly Archives: October 2017

Make a tee-shirt can heater

Posted on October 31, 2017 by robertwilkie

Basically another variant off the toilet paper with isopropyl alcohol burner.  Still if you have some old shirts to use up.  This could be one way to get rid of them and use them…with a pumpkin. http://www.instructables.com/id/Metal-Can-T-Shirt-Heater-Rolled-Wick-Heater-SHTFSu/

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Check out this miter sled for a tablesaw

Posted on October 27, 2017 by robertwilkie

Wow, smaller than the one I build (takes the whole table) and has a built in angle for the bit to cut.  If I only had a proper plung router now…. This may go on the list for round 2 … Continue reading →

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Interesting Mod to a square for making center holes

Posted on October 27, 2017 by robertwilkie

Could be used for large circle cuts too.  Interesting hack overall (you can get these squares at the dollar store these days). http://www.instructables.com/id/The-1-Marking-Center-and-Shelf-Pin-Layout-Tool/

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Making HDPE blocks

Posted on October 26, 2017 by robertwilkie

Nice write up.  The author goes over how to make different colors/patterns with the plastic, then press it to make a block.  The only downside I see is the time it takes to make the block.  It would be nice … Continue reading →

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Simple Solar water heater

Posted on October 26, 2017 by robertwilkie

Nice build overall.  Not so sure I would use plywood for the backing in the elements.  Could be a good away to heat small pools.  I like the use of flashing for the backing. http://www.instructables.com/id/DIY-Solar-Water-Heater-Deluxe-Aluminum-Backed-COPP/

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Nice write up on public key crypto

Posted on October 25, 2017 by robertwilkie

Its building off the standard Alice and Bob story.  But still worth reading. Practical Public Key Cryptography

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A cheap salt water battery

Posted on October 25, 2017 by robertwilkie

Basically iron nails and copper wire combo on a sink plunger. http://www.instructables.com/id/Make-a-Powerful-9V-Rechargable-Battery-From-Nails/  

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Cool Robot hands you can print out…or for under $10, buy

Posted on October 25, 2017 by robertwilkie

Nice robot hand designs.  Pretty simple and straight forward.  but if you don’t want to tie up your 3D printer, you can buy them in a kit from robotshop.com http://www.robotshop.com/letsmakerobots/parallel-mini-gripper-project

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So need to unlock your subaru without a key?

Posted on October 24, 2017 by robertwilkie

There is an opensource project and toolkit you can use to do so now. Exploiting Weak Crypto on Car Key Fobs

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Cool build for a wind powered music box

Posted on October 24, 2017 by robertwilkie

Nice build and well documented too. Making Music with the Wind

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