Category Archives: Tools

Thinking of Dive Hookahs

I want to build a 12VDC Hookah which will support two divers while cleaning the bottom of our boat (6 feet). We don’t have room to store one of the floating motorized version, but we have plenty of room to mount one inside the boat.

Here are the basic features \ design elements I’m looking to include.

  • 2 Divers for shallow dives less than <30 Feet. 90% of the time < 6eet while we clean the boat bottom
  • 12VDC Compressor with switch to cycle on\off to fill reservoir tank
  • Reservoir tank to allow air from compressor to cool, and to keep compressor from running continuously
  • 40 Micron particle filter
  • 4-5 CFM @ 45PSI minimum 100-150PSI maximum

If you have built something or have comments on the specs, let me know!

Today’s Miracle–Threaded Inserts

I have been looking for  way to attach the teak hatch to the bow bulkhead that allows access to the new chain locker. Previously this area was just an empty storage area and the hatch was held in place poorly and frequently popped out. With the new chain locker and the interior panel of starboard securing the chain, the teak cover is less important to hold stuff in, but with only a 1/2” of bulkhead to which to fasten the hatch how to do was becoming a concern. I had thought about using a tee-nut, but that would require removing the chain to access the interior of the locker again. Not something I wanted to be doing any time soon.

Low and behold I happened on the threaded insert at my local hardware store. It is basically a sleeve with wood threads on the outside and 1/2-20 machine threads on the inside. With a 1/4-20 cap screw to be tightened by hand… PERFECT!

Here’s a pic of today’s miracle

Sailrite LSZ-1 Sewing Machine

I’m in the market for an LSZ-1 if you’re selling one contact me! I was looking at an older unit on online and contact Matt at Sailrite who sent me this great video about the difference between the version 1 and 2 of their machines. Also, here’s a playlist covering many of the features of the Sailrite LSZ-1. These are very well respected, can’t find anyone who has a bad thing to say about them.

Those videos are under their old YouTube account, you should also check out their new one SailRite1.