-What type and size of enclosure are you using (dimensions).
-What is the size of the UTH?
-What are you controlling it with?
-what type of substrate are you using and how thick is it?

To post pics, you need to upload them into your Gallery on this site or other site like Photobucket, etc... To put them in your post, open up another internet browser window, go to where your photos are. Somwhere around the photo you should find a list of links for it, HTML, Direct Link, BB, etc... Look for the code that starts with [IMG]. Copy and paste that code into your post. You can click on the "Preview Post" button to see if it worked or not...