Finally building a flowhood

Myc · 03-24-08, 12:29

Woo Hoo!
Just got my new 24" x 48" HEPA filter panel in today. I can't wait to get started on the project.
Here's what I'm hoping to accomplish:

Mycotopia Web Archive: Laminar_Flow Hood

Been looking @ Grainger for a direct drive, forward curve blower and motor.

yerbaadam · 03-24-08, 13:35

There's a great seller on ebay who sells all refurb blowers. Great prices and communication. I forget his name it's something like "the squirell cage blower guy".

Keep it mad blissful,
>Your friend,
Deadly Duzzy (aka NasCar denDriTE duDLEY)

spacecake · 03-24-08, 16:32

Good luck Myc..!

It's not only handy to have one (altho I haven't got one),it's always fun to build something by yourself !

tomstevens · 03-24-08, 16:57

Yeah I bought my blower from ebay the same guy that was mentioned before... Samsgreat is his name...have fun man...

August West · 03-24-08, 16:59

I've been lazily sitting here with a filter for a while - does anyone have a link to a thorough tek for building one of these?

August West · 03-24-08, 19:20

Quote:

Originally Posted by Myc

Woo Hoo!
Just got my new 24" x 48" HEPA filter panel in today. I can't wait to get started on the project.
Here's what I'm hoping to accomplish:
Mycotopia Web Archive: Laminar Flow Hood
Been looking @ Grainger for a direct drive, forward curve blower and motor.

Quote:

Originally Posted by August West

I've been lazily sitting here with a filter for a while - does anyone have a link to a thorough tek for building one of these?

didn't mean to hijack your thread.

I'll start a new one.

Lazlo · 03-24-08, 19:36

I bought my blower from that same guy.

Myc · 04-16-08, 16:23

Today is test day and I'm pleased to report that my design is a success!!!
I researched lab grade equipment and reverse engineered a style that I thought would best suit my purposes. Having had no formal engineering education, I wasn't sure if this thing would even work.

The cabinet is constructed from a combination of 3/4" and 1/2" particle board. I chose these cheaper materials due to the fact that I was experimenting.
I used simple cabinet construction joints (rabbets, dadoes, screws and glue) to ensure air tightness of all connections.
All powered by a used 1/4 HP forward curve blower and motor.
The blower and inboard flourescent work light are capable of independent operation.
I'm especially happy with my "trick" pre-filter housing which uses cam screws and studs to make pre-filter maintainance a breeze.....LOL! Just remove the housing, change the filters, and replace.
Three pre-filters were chosen to extend HEPA filter life. One for coarse particles, an electrostatic filter for medium particles and an "ultra allergen" filter as a final measure. A removeable top and back make HEPA filter change out simple should it ever become necessary.
The actual filter face provides a 50" wide, by 30" tall, by 16" deep work area so I've got plenty of room to stretch out. Future work area plenum extension will be easy if 16" proves to be too shallow of a work surface.
Next, I need to build a simple stand to get this thing up off the floor. It's too heavy for one person to lift (weighs about as much as a double door refrigerator).

This is, of course, is a prototype design. The design could easily be rotated 180*. Locate the blower to the left or right, compress the blower intake housing (to make room for a desk chair), relocate the pre-filter intake to the side of the blower housing. Slight design modifications and this piece of equipment could be made to look like a writing desk. I would also choose to use premium hardwood plywood and hardwood lumber to speed the finishing process. There was a large amount of time spent on surface prep, sanding and painting.

AKcoast · 04-16-08, 16:58

VERY nice design and craftsmanship!

sooshane · 04-16-08, 17:13

Very clean work! Looks good!

spacecake · 04-17-08, 13:48

Yeah,that Flowhood looks pretty good Myc !

onediadem · 04-17-08, 14:49

Excellent work, and for saying you have no previous experience makes this jewel extra special indeed. I can tell it was a labor of love.

Hippie3 · 07-23-08, 20:55

how's it working out for ya ?

Myc · 07-24-08, 10:36

This piece of equipment is a success!
Totally nice working in front of a Cadillac setup like this one.
Easy cleanup
I installed a debris shield based upon some recommendations made by Hip3 using plastic sheeting and Velcro strips.
Airborne contams are non-existent so far.
Really helped me narrow down where contams were coming from during spawn culture and allowed me to make corrective measures.

Plenty of room for bulk substrate trays
Spawning and casing are virtually contam free - knock wood

Couldn't have done it without the vaults for ideas, links, and guidelines!

lucysd · 07-24-08, 11:02

Quote:

Originally Posted by Lazlo

I bought my blower from that same guy.

well with all the business we bring him might be beneficial to make this guy a sponser being that his customer service skills are great too

we could get special deals fer mycotopia members if we refer all our members that need a hood to this guy whatever his name is hehehe

livewire420 · 07-24-08, 12:44

ya dude always has deals

how much that filter run ya? cheapest i've found on that size was $700

Lazlo · 07-24-08, 13:36

That's one hell of a rig you've got there man! Nice.

Myc · 07-24-08, 19:58

Quote:

Originally Posted by livewire420

how much that filter run ya? cheapest i've found on that size was $700

Scored it on Ebay.
New in box
Delivered
$65 USD
I just get lucky sometimes.

Thanks for the compliment Lazlo!
Hand-made with lots of TLC.
I think I wound up investing somewhere in the neighborhood of $300
Labor took some 50-60 hrs. from start to finish.

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03-24-08, 12:29	#1 (permalink)
Myc El Jardinero Join Date: Apr 2007 Posts: 1,159	Finally building a flowhood Woo Hoo! Just got my new 24" x 48" HEPA filter panel in today. I can't wait to get started on the project. Here's what I'm hoping to accomplish: Mycotopia Web Archive: Laminar_Flow Hood Been looking @ Grainger for a direct drive, forward curve blower and motor. Attached Thumbnails Last edited by Hippie3 : 07-23-08 at 20:56.

03-24-08, 16:32	#3 (permalink)
spacecake Universal Mod Join Date: May 1972 Posts: 3,628	Good luck Myc..! It's not only handy to have one (altho I haven't got one),it's always fun to build something by yourself ! __________________ Neurologic

03-24-08, 16:57	#4 (permalink)
tomstevens Mycophage Join Date: Jan 2008 Posts: 198	Yeah I bought my blower from ebay the same guy that was mentioned before... Samsgreat is his name...have fun man... __________________ Magna res est vocis et silentii temperamentum - Seneca the Younger

03-24-08, 16:59	#5 (permalink)
August West searching Join Date: Feb 2008 Posts: 193	I've been lazily sitting here with a filter for a while - does anyone have a link to a thorough tek for building one of these? __________________ "World War III will be a guerrilla information war with no division between military and civilian participation." - Marshall McLuhan

03-24-08, 13:35	#2 (permalink)
yerbaadam SpectraL veNtriloQuist Join Date: Jul 1971 Posts: 776	There's a great seller on ebay who sells all refurb blowers. Great prices and communication. I forget his name it's something like "the squirell cage blower guy". Keep it mad blissful, >Your friend, Deadly Duzzy (aka NasCar denDriTE duDLEY)

03-24-08, 19:36	#7 (permalink)
Lazlo old hand Join Date: Mar 1970 Posts: 6,917	I bought my blower from that same guy. __________________ How can you have any pudding, if you don't eat your MEAT?

04-16-08, 16:23	#8 (permalink)
Myc El Jardinero Join Date: Apr 2007 Posts: 1,159	Horizontal Laminar Flow Workbench Today is test day and I'm pleased to report that my design is a success!!! I researched lab grade equipment and reverse engineered a style that I thought would best suit my purposes. Having had no formal engineering education, I wasn't sure if this thing would even work. The cabinet is constructed from a combination of 3/4" and 1/2" particle board. I chose these cheaper materials due to the fact that I was experimenting. I used simple cabinet construction joints (rabbets, dadoes, screws and glue) to ensure air tightness of all connections. All powered by a used 1/4 HP forward curve blower and motor. The blower and inboard flourescent work light are capable of independent operation. I'm especially happy with my "trick" pre-filter housing which uses cam screws and studs to make pre-filter maintainance a breeze.....LOL! Just remove the housing, change the filters, and replace. Three pre-filters were chosen to extend HEPA filter life. One for coarse particles, an electrostatic filter for medium particles and an "ultra allergen" filter as a final measure. A removeable top and back make HEPA filter change out simple should it ever become necessary. The actual filter face provides a 50" wide, by 30" tall, by 16" deep work area so I've got plenty of room to stretch out. Future work area plenum extension will be easy if 16" proves to be too shallow of a work surface. Next, I need to build a simple stand to get this thing up off the floor. It's too heavy for one person to lift (weighs about as much as a double door refrigerator). This is, of course, is a prototype design. The design could easily be rotated 180*. Locate the blower to the left or right, compress the blower intake housing (to make room for a desk chair), relocate the pre-filter intake to the side of the blower housing. Slight design modifications and this piece of equipment could be made to look like a writing desk. I would also choose to use premium hardwood plywood and hardwood lumber to speed the finishing process. There was a large amount of time spent on surface prep, sanding and painting. Attached Thumbnails

04-16-08, 16:58	#9 (permalink)
AKcoast NW of PNW Join Date: Mar 2008 Posts: 43	VERY nice design and craftsmanship!

04-16-08, 17:13	#10 (permalink)
sooshane Hi! Join Date: Jan 1971 Posts: 138	Very clean work! Looks good! __________________ Free Spore Prints & Free Seeds Ring <---Thanks you for your support - sharing the love. :)

04-17-08, 13:48	#11 (permalink)
spacecake Universal Mod Join Date: May 1972 Posts: 3,628	Yeah,that Flowhood looks pretty good Myc ! __________________ Neurologic

04-17-08, 14:49	#12 (permalink)
onediadem Alpha Comae Berenices Join Date: Jan 1971 Posts: 621	Excellent work, and for saying you have no previous experience makes this jewel extra special indeed. I can tell it was a labor of love. __________________ No confidant can ever betray, all the words you didn't say.

07-23-08, 20:55	#13 (permalink)
Hippie3 Admin Join Date: Feb 2001 Posts: 35,347	how's it working out for ya ? __________________ GROW SUPPLIES: www.Mycrotopia.com ------------Simply The Best------------ Namaste Temet Nosce

07-24-08, 10:36	#14 (permalink)
Myc El Jardinero Join Date: Apr 2007 Posts: 1,159	This piece of equipment is a success! Totally nice working in front of a Cadillac setup like this one. Easy cleanup I installed a debris shield based upon some recommendations made by Hip3 using plastic sheeting and Velcro strips. Airborne contams are non-existent so far. Really helped me narrow down where contams were coming from during spawn culture and allowed me to make corrective measures. Plenty of room for bulk substrate trays Spawning and casing are virtually contam free - knock wood Couldn't have done it without the vaults for ideas, links, and guidelines! Attached Thumbnails

07-24-08, 12:44	#16 (permalink)
livewire420 beer goggle pornstar Join Date: Aug 2007 Posts: 1,924	ya dude always has deals how much that filter run ya? cheapest i've found on that size was $700 __________________ lw420's guide to great fungi grow info

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07-24-08, 13:36	#17 (permalink)
Lazlo old hand Join Date: Mar 1970 Posts: 6,917	That's one hell of a rig you've got there man! Nice. __________________ How can you have any pudding, if you don't eat your MEAT?

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