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everyusername - Thanks for hoping on the list. Hope you have an enjoyable time here during the wait. Vapinghole - Nice to hear your HIsaber is serving you well. Sounds like you are getting everything fine tuned. stickstones - I'm glad to hear you gave the HI another try. A fine grind does...

OhTheAgony - Thanks for the offer. They may frown on you sending me some. Hopefully someday it will be more available for all. I was taught lathe basics way back in junior high school. It was either spindle turning or bowl turning with a face plate. The 4 jaw chucks are making so much more...

OKcomputer - Glad to hear it is staying cloudy at your house. OhTheAgony - Nice to hear of your face melting session. Wish I had access to that kind of stuff. Glad you are enjoying the nipple. Ezi - This is my first try at cocobolo. Hoping it will work out. stickstones - It is nice to hear...

From what I have read there are two kinds of burl cork. Natural and man made by gluing bits of cork together. I would opt for the natural. No sense using glue when you don't need to.

I have to find a suitable size canna stalk first. There is a material called Burl Cork which is supposed to be stronger and heavier than regular cork. It is supposed to turnable like wood. Might be another material option.

Natural cork certainly does have a low thermal conductivity. It should hold up pretty well. Now the challenge to find some cork the correct size. Maybe I will just have to make a vaporizer from a wine cork. Here is a material that should work well. It is called AAC...

Sorry about the misshapen nipple. I will need to watch a bit closer when making them. Glad to hear you are liking the nipples now and it is also working on the UD. I also like your modification with a bit of silicone past the nipple to provide a seal. I do something very similar with my 3/8"...

OhTheAgony - Sounds like you are getting things figured out. Good air flow is definitely the key. I give the nipple a stir after each hit. The draw can be a lot slower with the nipple. Keep it straight in line with the center tube for the best seal. I have found that some herb doesn't work as...

OhTheAgony - You just came up with another way to use the stainless steel tips. They are intended to be used with the herb in the long end, but they can be used either way. The longer tip will be the easier one to remove for screen maintenance. You may not need to take it completely apart for...

OhTheAgony - Glad ET arrived safely. He looks happy in the picture. I was able to ship it cheaper using the smaller box since I did not send a power supply. The SS nipple could actually be used from either end depending upon the size of the bowl you want to use. The screen is located in the...

Thanks for the photo Dave. They do show much more than words. So the strip of insulation must wrap around the core and then the ring of insulation goes on top? The thread TPI for the power socket is probably finer than NF. I used a thread gauge to measure the ones I am using so I would know...

Photos do explain things so much better. Here is a photo of the bamboo HI Dave. It is my primary unit. Has been running 24/7 for months now. 7/8" in diameter and super light in weight. The size of tap necessary for the power socket hole will depend upon the power socket that you are using...

I still want to try to make a HI using a hemp stalk or maybe a corn cob. A bamboo pole works very well. The material should have a thermal conductivity at least as low as wood.

You are welcome stickstones. Your HI still has the core in 2 pieces. The core is now shaped like a cup. The parts are the same, just connected together. The bottom of the cup does not sit on the bottom of the bore hole so the air path is only down to the solder joint on the outside wire. The...

I had explained the construction of the HI in words, but it is sometimes easier if you can see a photo. Here is one of my failures. The wood is purple heart. The core is not shown so that the resistor position is visible. The power socket pretty much fills the entire center hole. About as...

The space between the outer core and wood does not make a perfect seal. Tiny fibers can pass between the wood and metal to get up to the air intake location when the unit is turned up side down. This is especially true if the core is loose or rattling. The tiny fibers can also come down through...

Rick is saying exactly what I have been saying. You can't pull air from the space below the core because there is no place for air to get in to replace it. The power socket does provide a seal. If there is a material in the lower space that produces any kind of fumes or extra gas molecules...

This post already explained the position of the resistor. The debris screen is in about 3/8" from the end of the tube and rests directly on the resistor. The HI starts with a 3/8" hole through the center of the wood. A 3/4" hole is bored in one end of the wood. A 1" hole is bored in the other...

That is correct stickstones. Since the heating element threads into the bottom hole, air cannot flow from the space below the core. It is just a closed air space. Any roasting debris that does fall into this space can easily be cleaned by removing the heating element. Since there are no...

If the gasses are water soluble, they will be taken out.There would need to be some research done to determine the solubility of the potential gasses in water. If you exhale through a straw in water and blow bubbles, the CO2 is water soluble and will drop the PH of the water (acidic).