Watched A couple of youtube videos and decided to try to make my own mini caldera type cone that would fit in my zelph ridged fosters pots.
Here is what I came up with . It is 5 1/2 inches tall and has about 2 1/2 inches of room from bottom of pot to surface leaving me about an inch or so of flame to bottom of pot with the burner I will use with this combo. weight is 21 grams. Its not perfect but it is my first one. I had to use A paper hole punch because I could not get the hole punch set I bought to puncture the aluminum ...
IMG_20170515_191134.jpgIMG_20170515_191137.jpgIMG_20170515_191153.jpg