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Automatic Dust Collector Control

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Forum topic by dustmonkey posted 06-02-2008 10:15 PM 4644 views 2 times favorited 23 replies Add to Favorites Watch
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dustmonkey

19 posts in 2331 days


06-02-2008 10:15 PM

I’ve seen some forum threads on dust collection and wanted to get some feedback on a control I built to automate my dust collector.

I designed and built a dust collector control for small shops that will automatically sense when you have turned on a shop tool and start your dust collector. It also has an adjustable off delay. The advantage of my design is that you do not need to run low voltage wiring to each tool or blast gate. It will work on 120V or 240V dust collectors up to 30A. It has an auto/on/off switch so you can turn it on manually or keep it from running if needed. You only need to install a small sensor in your electrical panel. Each sensor is good for up to 100A of total tool current. Multiple sensors can be installed if you have over 100A of total tool current, but this is not usually necessary as people with small or home shops don’t often use multiple tools at once. You do need to run your dust collector circuit trhough the control box and control power can either be supplied by the dust collector circuit or a separate 120V source. Less than 1A of control power is required. You don’t need to be an electrician to install it. The whole control is about 8”x10”x6” deep and can mount next to the electrical panel. Please let me know if anyone is interested and I can provide additional info. I built one for a friend with a cabinet shop and he loved it!

I’d love to know if folks would be interested enough to purchase such a device…..

Thanks!


23 replies so far

View WeldenCarpenter's profile

WeldenCarpenter

1 post in 2330 days


#1 posted 06-03-2008 06:21 AM

Hey Dustmonkey, I’m interested in your automatic dust control system. Are you using automatic blast gates?
Thanks, John

-- John

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dustmonkey

19 posts in 2331 days


#2 posted 06-03-2008 06:40 AM

Nope! Below is a description of the system…. Let me know what you think.

You are reading about an automatic dust collector control unit, a very cool product that starts and stops your dust collector automatically whenever you start or stop any of your shop power tools. Yes, that’s right, any of your shop power tools. The automatic dust collector control unit does not require a remote control or any wiring to your shop tools. Imagine no remote control to loose, forget or buy batteries for. No more walking across your shop to turn on and off your dust collector. No complicated sensors or wiring to install between your dust collector and your shop tools. No additional wiring required to add new shop tools. The automatic dust collector control can also receive remote switch input from other shop tools or dust collection equipment such as blast gates (we incorporated this feature for those folks who feel the need run wiring around their shop). The unit does not require a separate power connection; it operates from your dust collector power circuit, and requires very little power to operate. The unit is much less expensive than other automatic dust collector controls, and easy to install.

DUST COLLECTOR COMPATIBILITY:
Dust Collector operating voltages 120 VAC 50/60 Hz or 240 VAC 50/60 Hz single phase
Maximum dust collector motor rating is 3HP or 30 amps (120/240V single phase)
(other configurations are available upon request)

The automatic dust collector control unit is an AC power controller that will automatically turn on power to your Dust Collector (up to 3HP or 30amps) whenever it senses that any shop power tool has been turned on. Once the automatic dust collector control unit senses that shop tool(s) have been turn off is will continue to operate your dust collector for a predetermined delay (from 1 – 180 seconds, set or specified by you) and then automatically shut off your dust collector. The automatic dust collector control unit also has a user selectable on-off-auto switch to allow you to manually control your dust collector.

PRINCIPLE OF OPERATION:
The automatic dust collector control unit senses current flow in shop tool circuit wires. This signal is then used to control relays that control power to your Dust Collector. Once shop tool(s) are turned off the automatic dust collector control unit delays turning off your dust collector for an adjustable time period, designated by you, to allow all wood dust and chips to be evacuated from the system.

AUTOMATIC DUST COLLECTOR CONTROL UNIT SPECIFICATIONS:
Input voltage 120/240 volts 50/60 Hz
Maximum power tool(s) running current is up to 100 amps AC (higher tool current on request)
(Additional sensors can be added for unlimited tool power running current)
Minimum power tool current required to turn on dust collector is 350mA (0.350 amps)
Maximum dust collector motor rating is 3HP or 30 amps, 120/240V single phase
User selectable on-off-auto with three position control switch
Remote user input available
Dust collector off delay user selectable from 1 – 180 seconds (1 to 15 minutes available on request).
The automatic dust collector control unit is housed in a NEMA 1 hinged control box that measures 8”wide x 10”high x 6”deep.

AUTOMATIC DUST COLLECTOR CONTROL UNIT INSTALLATION:
The automatic dust collector control unit is designed for installation close to and is wired into an electrical branch circuit panelboard (breaker box) containing the branch/load circuit breakers and circuits feeding your shop power tools and your dust collection system. We always recommend installation be performed per the National Electrical Code by a licensed electrician. However, installation is very simple and full installation instructions and details are included with the unit.

US PATENT PENDING, MADE IN USA

View tooldad's profile

tooldad

657 posts in 2400 days


#3 posted 06-03-2008 06:43 AM

send me contact info to lumber@tooldad.com

Thanks, tooldad

View LookingPromising's profile

LookingPromising

4 posts in 1674 days


#4 posted 03-20-2010 10:53 PM

I know this thread is extremely old but I’m wondering if dustmonkey is still making these automatic dust collector control units or if a web site or product page exists. -thanks

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dustmonkey

19 posts in 2331 days


#5 posted 03-21-2010 12:28 AM

I Can put one together upon request. Iif you’re interested in one please let me know.

View Michael Murphy's profile

Michael Murphy

448 posts in 1690 days


#6 posted 03-21-2010 06:59 AM

Is there an advantage over just having a switch on the gate for the machine you are running? Open the gate, the DC turns on and there you go. Close the gate it stops. Should it be more involved than that? Use the KISS principle.

-- Michael Murphy, Woodland, CA.

View dustmonkey's profile

dustmonkey

19 posts in 2331 days


#7 posted 03-21-2010 06:15 PM

With the control mentioned above, you do not need to run control wiring to shop equipment. In my opinion, that makes the system simple. With blast gate start/stop controls you must have a control switch on each blast gate and run wiring to each blast gate or piece of equipment.

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LookingPromising

4 posts in 1674 days


#8 posted 04-14-2010 05:10 AM

Sorry, I got distracted with a new addition to our family and, somehow, nearly a month has passed…

I would be interested—it seems like a very elegant solution. Your description says the system supports up to a 3hp or 30 amp DC. My DC is a 3.5hp motor on a 30 amp circuit; will this be ok?

View dustmonkey's profile

dustmonkey

19 posts in 2331 days


#9 posted 04-14-2010 06:08 AM

Congrats on the new addition. That is always exciting…....

Right now the max rating is 3HP or 30A at 240VAC single phase. It will work with a 3.5HP, 240V motor, but may shorten the life of the switching relay contacts which are rated for 1 million mechanical operations. It can be made available with higher rated contacts, but it will increase the cost since the cost of the switching relay jumps from about $15 to $60. Might make the control box larger as well…....

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LookingPromising

4 posts in 1674 days


#10 posted 04-14-2010 07:07 AM

Thanks, in that case, I think I’d go with the larger relay. Could you send your contact info to looking.promising@gmail.com?

View Gaber's profile

Gaber

1 post in 1343 days


#11 posted 02-16-2011 07:31 PM

dustmonkey-
I am interested in your unit. Can you please send me specifics on the price, delivery and how to hook it up? Send info to krobb@consolidated.net.

I read an article in a 2008 issue of Popular Woodworking that described a device called the Automater 2400, which sounds very similar to your device, except that theirs did not have a switch to change from the Auto mode to manual. I am wiring my dust collector right now (an Oneida 2hp Dustgorilla), and I was planning to get the Automater. But I want to be able to use a magnetic starter to turn on the DC manually, for tools such as a miter saw where I need the DC to run continuously.

I have my wiring diagram all finished for the Automater, but I am at the point where I can still change it to incorporate your device. I look foward to hearing from you!

-- --Gabriel

View zooch's profile

zooch

2 posts in 1225 days


#12 posted 06-13-2011 07:15 AM

I know this is an old thread but was wondering if it is possible to get information about the automatic dust control device that dustmonkey was describing.
Thanks,
Zooch

View dustmonkey's profile

dustmonkey

19 posts in 2331 days


#13 posted 06-14-2011 03:11 AM

Zooch,

It is still around. I have produced a few for folks that were interested. LookingPromising has one. Last I heard he was a few weeks away from installing it (that was last fall).

Post a reply with your email address and and questions and I’d be happy to respond with more info, pics, etc.

dustmonkey

View zooch's profile

zooch

2 posts in 1225 days


#14 posted 06-14-2011 03:59 AM

Dustmonkey,
I am interested in the system, but have a few questions:
The panel in my shop/garage is the main panel for the house. It has the breakers for my equipment plus a main breaker (150 amp) that connects to the panel in the house. Will the equipment work with this configuration?
What equipment is needed, how is it installed and how much will it cost?
Please email me at pjzeee@gmail.com
Thanks,
Zooch

View LookingPromising's profile

LookingPromising

4 posts in 1674 days


#15 posted 06-14-2011 05:51 AM

I am embarrassed to admit that my shop project stalled. I failed to account for the amount of time a new baby could consume…

I will say that dustmonkey built a control unit to meet the specifications I needed for my dust collector. The price was as he stated and he completed the project very quickly. My dealings with dustmonkey were very positive and I would certainly recommend him to others.

Sadly, I just can’t find the time to get my shop finished, the control unit installed and my dust collector hooked up. This, of course, is not dustmonkey’s fault; it’s mine for starting my project at the wrong time. I will post again when I finally do get everything up and running.

LookingPromising

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