It’s time for an update, a long overdue addition to the blog, and some much needed renovation to the paint shop. Let’s back up a bit and fill in any grey areas since Act 1.
The introductory post to this project concluded with the construction of a ceiling with frames for intake filters. Shortly after, a few parts needed finishing and so two retractable soft-walls were made from old garage door parts and a few bearings from Tractor Supply… one of my favorite stores.
Still mocking up the drop length… look at all that junk!
A small exhaust fan was added and the parts in question were able to be finished. Next up was the north wall…
Framing was built…
…and the air drop was plumbed into the existing line. The lines running to the booth are no less that 1″ diameter, supplying a considerable amount cfm.
With the drop located, the next piece of drywall was added and the old entry door was removed. Note the free artwork on the temporary sheathing provided by the local adolescent-art community.
The remaining wall was constructed and work continued in this configuration for the next few jobs. Can you see a pattern forming?
One of the more important aspects of designing a spray enclosure is to provide the cleanest possible intake air. With that in mind, (and the next short break in workload) a 24″ deep charge-air box was built to pressurize the spray environment. The blower is pre-filtered with perforated fiberglass arrestors, then the charge is blown through six 20″x20″ filters. “Thinking inside the box.”
Tacky filters for mock-up and temporary use…
And you guessed it… back to work. This setup, though still very crude, provided an extremely clean environment.
With the charge air and exhaust on separate switches, airflow/pressurization can be controlled quite nicely for different cycles throughout the finishing process.
And while I was pleased with the spray environment, there were a few issues surrounding the setup. The first being that the shop entrance door opened directly into the booth, big no-no. Also, the hardware for the bay door that provides vehicle access had been removed in construction of the ceiling and the door was then made inoperable, without complete disassembling and removal. Lastly, the entrance to the booth was a 7 foot long zipper in the middle of the larger plastic wall. Having to constantly unzip to pass through the wall, over-and-over throughout the day left me in a very bad mood and was leaving me to feel like a… well.. sort of a giant prick.
Come back for the final post, as this project is still amidst evolution…