my shop fans have a small slide switch on the side, of the center hub that allows you to reverse the direction of rotation, just for giggles, and thinking about previous posts I asked my younger son for help, to do a quick test., and as a test, I spent, 15 minutes, too have too try a change, too see if it improved the feel of the air flow in the shop.
I got my younger son up on a tall step ladder and he changed them all in the shop to push air into the rafters, toward the roof exhaust fans, this resulted in noticeably less breeze or air flow rates at floor level than the previous set up, where roughly 1/2 the fans on the west side pushed air up and all the fans on the east end pushed air toward the floor.
If you have a similar situation where several fans can push air down on one end of the shop and several can push air upwards you might want to try it out to see the effect it has,
now it might be most effective in my shop due to the 16' rafter height and no ceiling , so the upward moving air traveled thru and above the rafters,but I can assure you it works well.
now I can easily see where if the shop had a ceiling and was closer to the floor the effect would not be nearly the same
theres about 8ft above the lower horizontal ceiling rafter to the roof rafters at the peak
I naturally have the roof duct or evac fans pulling air up out of the rafters and pushing that out over the roof exterior, I have the 9 fans on the west end of the shop pulling air up into the rafter and the 12 fans on the east end blowing to the floor , this results in a very noticeable circulation in the shop making it feel a good deal cooler than it is in reality according to the thermometer,
Like Ive said many times TEST AND TAKE NOTES YOU MIGHT FIND OUT THINGS YOU ASSUMED TO BE WORKING WERE NOT WORKING AS YOU THINK THEY ARE!
home depot 60" industrial fans put out a decent breeze
roof duct fans come in various sizes, I got the largest I could locate at the time the shop was built
a great deal of the rust issue most of us have can be reduced by proper planing,
tools should ideally be stored in a near moisture free area.
with good ventilation and no big temp changes that tend to allow condensation,
to form on tools or components in storage.
if your planing a shop, mandate the contractor takes the time to place, both a multiple plastic layer moisture barrier under the concrete floor of your shop
, and spray a strong residual insecticide for termites under the concrete slab,
before its poured., this will help a great deal,
if you bought a building that has no moisture barrier under the poured slab, you should consider the better epoxy based floor coatings
and in either case roof vent fans and ceiling fans that keep the air moving reduce the chances of parts and tools rusting.
most of us have some type of tool chest and if you have the tools long enough,
your sure to have issues with surface rust forming on those tools,
if the area you store the tools in is not dry and well ventilated.
now most of us will have noticed the better quality tool trays have a felt or plastic pad on the drawer floor
,if you spray the tools every few months with a mist of WD40 occasionally,
the lower surface tends to retain the residue and constant use of the tools,
and occasional preventive misting with the WD40 will greatly reduce the rust formation issues.
obviously if your tool chest does not have a lower drawer pad, (ideally thick felt of similar oil retaining material, that will release a protective oil vapor over time)
you might want to carefully measure and install some floor in each drawer,
so that lower surface will retain some rust preventative oil the tools are stored on.
http://www.dayattherange.com/?page_id=3667
http://garage.grumpysperformance.com/index.php?threads/dehumidifier-in-your-shop.10478/#post-44087
http://garage.grumpysperformance.com/index.php?threads/shop-drainage.5035/#post-27439
