You can get the fan for like $30. All the steel was around $10-20. Not sure cause I buy in bulk cause I fabricate lots of other shit. I got the bag for $8. The only thing that was expensive was getting the top laser cut. For 1/8" thick 2'x2' sheet cut the laser cutting company charged me $155 but for 3 sheets. So about $52 for 1. I bought 3 because if I only got 1 it would have been $145. The first one always cost the most when you get CNC service. So it was a little over $100 to make. The Trimpro cost $1500 and this one performs the same. I compared it to my friends Trimpro. Even the generic Trimpro sells for around a grand. I still have the other 2 tops but never got around making the other 2 and once I make them they are already sold. I have 2 people waiting on me to make them. Both offered me $400 for each. Problem is I just don't have the time to build them. I keep getting side tracked with other projects. My most recent project was an tincture alcohol extractor for a friend. It's kind of like a brewer. I don't have pics cause it was a personal design of his that he didn't want getting out to the public. And before that I made 6 tincture presses for another friend. It crazy with the original press sells for. They sell them for like $700. I copied them for $200 in materials to build 6. Sold them for $200 a piece. Here's a pic of the press in case you're wondering what it is.
I was looking at some of the automatic ones, I think the Trimpro was one of them, there was even one that looked like a giant Salad Shooter,
it was huge, way bigger than I would ever need. And every one was more than I could afford. So the one you built is significantly cheaper.
And doesn't look like it will fall apart any time soon. I think once I get my final grow room set up to accommodate my legal limit, I might attempt
to build one, because I have arthritis, and it is getting worse and worse every year. Trimming by hand can get painful...