Can a no shirt detector be made

[rmonks]

I have an M&R gauntlet, and need to get a no shirt detector, I know , I know , i can buy one from M&R. I am like everyone else trying to save money , NOT cut corners.
If it is just sensors and parts, I can do it with a little guidance . Has anyone made their own.

[Rick Roth]

Can someone explain to me why you need a no shirt detector? What else are you missing if you don't notice skipping a platen? We have an MHM and can stop it quickly, is it the issue that other presses can't be stopped if you mis-load?

[mooseman]

I do not know anything about operating an auto, I have never even seen one operating outside a trade show or youtube. having said that the following may or may not make sense for you..................

What I think you are looking for is basically an on / off switch for a function the press performs.
Think specifically about the "switching operation" you might think ablut using a photo sensor to initiate the process. Simply put the photo sensor electrically reacts to light or no light. Here is a $2.00 version
 http://www.google.com/products/catalog?q=miniature+photocell&hl=en&rlz=1R2ACAW_enUS408&prmd=imvns&bav=on.2,or.r_gc.r_pw.&biw=1600&bih=721&wrapid=tlif131607710731410&um=1&ie=UTF-8&tbm=shop&cid=11284900971665379957&sa=X&ei=K75xTtziGonj0QGWw931CQ&ved=0CFoQ8wIwAA#

If you were to place it somewhere on the press where it would be covered by a loaded shirt the signal could be used to activate the print station. If you missed loading the sensor would send a different signal deactivating the print station. Keep in mind these are low voltage devices and would need to be associated with a circuit with some simple switching / relay elements but all triggered by the photo cell. These cells are quite small I have seen them smaller than a dime and aboyt 1/4 inch thick.

a little less sophiscated "switching element" you possibly use every day. It is a photo sensor on your automatic garage door, When you braek the beam the door opener is tripped. This beam could be located such that the shirt would interfere with the beam.

a little simpler and less selective is the IR detector on your automatic flood lights or door opener chimes . When you walk in front of the beam you are tripping a switch that turns on the lights or sets off the alarm , keep in mind the IR element of this device is just a triggering device that signals to some following function. We have a small door chime device in our shop focused on the entry door.  http://www.walmart.com/ip/Trademark-Global-2-in-1-Motion-Sensor-Alarm-and-Chime/14948014

Bottom line think what would see or not see the shirt on the platten, let that sensor  trip a relay (switch), with that start you could turn on or off anything you wanted to put in the switched circuit.
mooseman

[Zelko-4-EVA]

we used to have a no shirt detector,  but found that the skip shirt pedal was more reliable. 

[inkbrigade]

We have one on each press and couldn't live without them.

[Socalfmf]

Rick

I am with you...I was properly trained on my auto and we do not have a no shirt detector or foot pedal...in my opinion those devices are band-aids for poor training. 

Training is key here....making sure all employees who use the auto know how to properly use it is the best...

Sam

[mk162]

And if you are really in need of it...slow down since you can't keep up anyway.

[inkman996]

No shirt detector or foot pedal is a band aide? WTF?

Are you trying to say a loader should be able to load %100 perfect all day long never a mistake?

I use our miss shirt pedal when lets say the shirt i grab is tangled up, or someone distracted me, or I need to adjust something in the menus. None of those reasons have anything to do with proper training, the skip table allows me to keep the machine running full speed and take care of other issues when needed. Other wise I need to completely stop the machine and restart every time.

[rmonks]

To those that use a no shirt detector. What would be the answer to my question.

[jason-23]

I to dont have an auto but one has to ask himself, is it cost affective and time affective to try and make one, wire it to your press and hope it works compared to just buy it from M&R and following the instructions.

[Zelko-4-EVA]

part number CP18LDNLC from honeywell is the sensor
par number cong10-s5 from carlo gavazzi is the sensor cable, but im not sure if the ends are changed to mate with sensor and press.

i dont know whether or not your press uses a different sensor or cable though.

[alan802]

I don't think it would be that easy to do.  Integrating it to the press would be the real hurdle after you've successfully made the unit.  I wish I had more to add but I really don't other than that.

On the subject of the idea of skipping misloaded pallets or empty ones, I hate stopping the press to reload or put a missed shirt on a pallet and much prefer just hitting one of the 3 buttons we have on our main control panel to tell the press not to print on that pallet.

[rmonks]

It is not so much the sensor itself that is costly it is the so called stand it mounts to. If I had a pic and measurements i could build the stand, and just buy the sensor and cable from M&R.

[jason-23]

It is not so much the sensor itself that is costly it is the so called stand it mounts to. If I had a pic and measurements i could build the stand, and just buy the sensor and cable from M&R.

i see, im sure someone here has the stand and will share some pics.

[RICK STEFANICK]

believe it or not you can order all the individual parts from m/r including the stand and make one for under 300. its crazy but call them and price the separate parts. they do help while training as you can pull the shirt off and the sensor reads the mylar under the pallet and shust those heads off. maybe sam will sell you the one he got with his diamond back since he doesnt use it?  i would ask him..