Thread: John's Dusty Enclosure...WIP

It must be enclosure making season! There's a few being built on the forums at the moment.

I started building mine today so I'll be watching your build with intetest.

Nice !

Fingers crossed that it'll fit...I forgot to add 200 mm to my length to allow for the width of the timber...

Stay tuned!

Looking good john. Made a fair bit of progress on it already. So what will you have in there again? Just the dc or aircompressor also?

Staying tuned!


Pete

Hoping to fit the dusty, shop vac & air compressor. Hopefully the 200mm too short won't be an issue.

Shop vac also? Is it one of those that have the electrical wire in the tube so it turns on when you plug in the vacuum? Or a remote switch inside or something? Sounds great. Keen to see what you do for insulation

Originally Posted by johnredl

Hoping to fit the dusty, shop vac & air compressor. Hopefully the 200mm too short won't be an issue.

I know others have done it but I'm not convinced that putting the compressor in with the the VC and DC is a good idea for two reasons.

Compressors needed ventilation to cool down so unless the DC was running when the Compressor happened to trigger, then the air temperature would build up inside the enclsoure. This probably won't do much harm to the compressor in the short term but it has to contribute to long term wear and tear. I have a fan that vents my compressor enclosure as soon as the compressor fires up and for twenty minute thereafter. I can watch the temperature from the inside of my shed and it does not take long (20 seconds) for a running compressor to significantly raise the air temp inside an enclosure. It may be possible to provide sufficient ventilation by placing a vent up high and one down low in the enclosure to enable convection to do its thing.

The second reason is that the compressor should not really be compressing dusty air. The dust will load the filters and also contribute to wear. Probably not much in the short term but it has to be doing something longer term. This problem can be gotten around by ducting clean air to the filters.

If noise reduction is an issue then to many vents will allow more noise than otherwise to escape.

By all means not a deal breaker but something to think about.

Originally Posted by delbs

Shop vac also? Is it one of those that have the electrical wire in the tube so it turns on when you plug in the vacuum? Or a remote switch inside or something? Sounds great. Keen to see what you do for insulation

I'd planned on simply running an extension cord inside and switching it on & off at the power point.

Dusty...not sure yet.

Thanks for your thoughts Bob. I'd planned to put a wall between the dusty and the vac/compressor sections. I hadn't thought about compressor cooling tho.

I'm glad that I'm not organised enough to finish the project quickly and it's still a WIP!

Forgot to mention previously that neighbours noise isn't really that much of an issue. We're on a corner block. From the proposed enclosure to either neighbours house would be about 30m. Plus we're higher up geographical than they are, so the noise should go over their house.

Originally Posted by johnredl

Thanks for your thoughts Bob. I'd planned to put a wall between the dusty and the vac/compressor sections.

I hadn't thought about compressor cooling tho.
I'm glad that I'm not organised enough to finish the project quickly and it's still a WIP!

I'd go for a pair of passive cooling vents (one up high and one down low and add a bathroom type exhaust fan if needed.

I second Bob's advice on the compressor, you want the air that is both being drawn into the compressor and for cooling to be as cold as possible, hot air makes the compressor work harder, so plenty of ventilation, also a light to indicate the compressor is on, it's easy to leave it on, knock off for the day and then hear it fire up at midnight, I've done it



Pete

The bathroom exhaust fan work well and when connected to the vacuum switch of the air compressor it will start every time the compressor starts.

Ducted air conditioner filter material work well as a filter for the passive air inlet.

A simple solution to stop the compressor from starting in the middle of the night is to install a timer at the power source. Being woken by the noise of an AC is horrific.

If you get a good seal on your pipe work and fittings, the air compressor won't need to run as often which will also reduce heat / wear and tear. Using a gas line sealant instead of Teflon tape will help.


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