LumberJocks

Automatic Switch for Dust Collector

  • Advertise with us
Blog entry by richgreer posted 03-11-2010 05:38 AM 10581 reads 3 times favorited 11 comments Add to Favorites Watch

One can buy a device that detects a drain on your electrical circuit (because you just started up the TS or whatever) and turns on the Dust Collector. However, all of the devices that I know of, power the DC from the same circuit that is powering your tool.

Does anyone know of a device that would detect a drain on circuit A and turn on the DC that is powered from circuit B?

I’m not very knowledgeable about electrical circuits but I wonder if one could made such a device. It is just what I want in my shop.

-- Rich, Cedar Rapids, IA - I'm a woodworker. I don't create beauty, I reveal it.



11 comments so far

View oluf's profile

oluf

257 posts in 1784 days


#1 posted 03-11-2010 05:59 AM

Yes I use that system now although it is manual. I have a pendent cord with a switch that I move all over the shop to turn on the DC which is on a seperate circuit. I used to use an RF hand held control rather than the pendent, but they didn’t last too long. My pendent could ne replaced by the curent draw sensor to do the same thing.

My pendent switch controls a magnatic controler (relay) that connects the load circuit to the DC.

-- Nils, So. Central MI. Wood is honest.Take the effort to understand what it has to tell you before you try to change it.

View Paul M Cohen's profile

Paul M Cohen

83 posts in 2522 days


#2 posted 03-11-2010 06:06 AM

Electricly it is easy, you need to detect current in the main circuit and then energize a relay. The relay then energizes the other circuit. The biggest issue is you need to connect to two circuits.

Circuit to turn on dust collector

If the tool vibrates the above circuit works, but it just an example.

http://www.ecogate.com/support/home-comercial.htm

The system above is a commercial version that proves exactly what you are looking for.

-- Paul, Beaverton OR, www.TravelbyPaul.com

View John Gray's profile

John Gray

2370 posts in 2630 days


#3 posted 03-11-2010 06:17 AM

The system shown in the link below allows you to turn on the DC when you open the blast gate at each device, your dust collector can be plugged into a separate circuit than the WWing machines. My friend has one and it works great for him altho you have to turn on each machine at it’s individual switch you do not have to walk to the DC every time to turn it on. http://www.pennstateind.com/store/LRMSET110.html
Customer reviews of the item in the following link. http://www.pennstateind.com/store/LRMSET110.html

-- Only the Shadow knows....................

View oluf's profile

oluf

257 posts in 1784 days


#4 posted 03-11-2010 06:23 AM

Paul; I think that Rich is asking if he can keep his DC on it’s dedicated circuit and still switch it on and off from a curent draw sence from another circuit. Yes he can.

-- Nils, So. Central MI. Wood is honest.Take the effort to understand what it has to tell you before you try to change it.

View Pete_Jud's profile

Pete_Jud

424 posts in 2497 days


#5 posted 03-11-2010 07:20 AM

I just got a grizzly remote switch, two remotes. I keep one on the saw fence and one by the router tables, I think it would be cheaper than making your own.

-- Life is to short to own an ugly boat.

View TopamaxSurvivor's profile

TopamaxSurvivor

15065 posts in 2420 days


#6 posted 03-11-2010 09:58 AM

I would think a remote switch would be better so you aren’t starting your Dust collector every time you start and stop your table saw. The dust collector is starting under load and will require a higher service factor than one that just starts and runs until you are done.

-- "some old things are lovely, warm still with life ... of the forgotten men who made them." - D.H. Lawrence

View michiganmark's profile

michiganmark

76 posts in 1809 days


#7 posted 03-11-2010 01:18 PM

Go to Rockler.com, they sell the exact item you want. I have three of them in my shop, one for the miter saw, table saw and planer. I couldnt live without them, saw dust makes me sneeze!

-- Michiganmark, I dream in wood......I'll blame it on my grandfather

View Dave Owen's profile

Dave Owen

234 posts in 1818 days


#8 posted 03-11-2010 07:01 PM

Hi Rich – Like John mentioned above, I use a system that turns my D.C. on and off via a relay when I open the dust gate. My D.C. is 240 volt, but the same system is available for 110 volt. When I bought it, it was called the “Long Ranger” system. The ‘starter’ package came with one 4” gate with the micro switch already installed – a 220v relay – 100 feet of wire, and a few connectors. I likely got it on sale when I bought it several years ago, but I still have the starter package box, and the price I paid for it was $59.99. In my opinion it’s worth a great deal more than that. At the same I bought four additional micro switches and attached them to the gates I already had. I like the system for several reasons. For one, while I can open more than one gate if I need to, the system won’t shut down until the last gate is closed. You can also put standard toggle switches in the system if that works better for you. In the beginning I was worried about the small micro-switches, but thus far none have broken or mal-functioned.

-- Dave O.

View Sivers's profile

Sivers

44 posts in 2127 days


#9 posted 03-11-2010 07:37 PM

I was looking at this the other day. It would work for a shop vac or small DC. Keeps it on for a few seconds after the tool is turned off to make sure the line is empty. Can plug both into the same circuit or different ones.

http://www.leevalley.com/wood/page.aspx?c=1&p=63013&cat=1,42401&ap=1

View dustmonkey's profile

dustmonkey

19 posts in 2390 days


#10 posted 08-17-2011 07:43 AM

Rich,

I don’t know if you found what you were looking for, but I’ve been making a control that will work for any tool in your shop. It does not require any wiring out to blast gates, sensors or the shop tool. Let me know what you think. Below is a blurb on the unit:

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 to 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 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)
(an adjustable sensor is also available)
Maximum dust collector motor rating is 3HP or 30 amps, 120/240V single phase
(three phase unit and higher HP units are available on request)
User selectable on-off-auto with three position control switch
Remote user input available
Dust collector off delay user selectable from 1 – 180 seconds (other configurations 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 TopamaxSurvivor's profile

TopamaxSurvivor

15065 posts in 2420 days


#11 posted 08-17-2011 08:44 AM

dustmonkey pretty simple basic idea that has been around a long time. Are you patenting your name for the system or trying to patent the whole circuit set up?

-- "some old things are lovely, warm still with life ... of the forgotten men who made them." - D.H. Lawrence

Have your say...

You must be signed in to post the comments.

DISCLAIMER: Any posts on LJ are posted by individuals acting in their own right and do not necessarily reflect the views of LJ. LJ will not be held liable for the actions of any user.

Latest Projects | Latest Blog Entries | Latest Forum Topics

HomeRefurbers.com

Latest Projects | Latest Blog Entries | Latest Forum Topics

GardenTenders.com :: gardening showcase