GBC laminator
2010-02-11 by ross b
Hi All: I would like to modify my GBC H-65 laminator, does anyone have or know where to find the wiring schematic, a google search turned up nothing,any help is appreciated Thanks Ross Bell
Thread
GBC laminator
Re: GBC laminator
2010-02-12 by James
--- In Homebrew_PCBs@yahoogroups.com, "ross b" <rossbell@...> wrote: > > Hi All: > I would like to modify my GBC H-65 laminator, does anyone have or know where to find the wiring schematic, a google search turned up nothing,any help is appreciated > > Thanks Ross Bell > Assuming this is a Chinese thing, you won't find a schematic unless somebody reverse engineered one, and even then, yours might be different internally. When I modified my Scotch laminator it was trivial to figure out enough of how it worked to do what I needed to do. Open it up and have a look.
Re: GBC laminator
2010-02-12 by sailingto
I'm not sure what the H-65 laminator is, but if it's anything like the cheap GBC Personal Laminator it shouldn't be very heard to mod. How are you wishing to mod it? Roller speed? Temperature control? Ken H> --- In Homebrew_PCBs@yahoogroups.com, "James" <jamesrsweet@...> wrote:
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> > > > --- In Homebrew_PCBs@yahoogroups.com, "ross b" <rossbell@> wrote: > > > > Hi All: > > I would like to modify my GBC H-65 laminator, does anyone have or know where to find the wiring schematic, a google search turned up nothing,any help is appreciated > > > > Thanks Ross Bell > > > > > Assuming this is a Chinese thing, you won't find a schematic unless somebody reverse engineered one, and even then, yours might be different internally. > > When I modified my Scotch laminator it was trivial to figure out enough of how it worked to do what I needed to do. Open it up and have a look. >
RE: [Homebrew_PCBs] GBC laminator
2010-02-12 by Roger Blair
Ross, Attached is my attempt at reverse engineering. Not sure it is exactly right, though. Regards, Roger
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From: Homebrew_PCBs@yahoogroups.com [mailto:Homebrew_PCBs@yahoogroups.com] On Behalf Of ross b Sent: Thursday, February 11, 2010 9:34 AM To: Homebrew_PCBs@yahoogroups.com Subject: [Homebrew_PCBs] GBC laminator Hi All: I would like to modify my GBC H-65 laminator, does anyone have or know where to find the wiring schematic, a google search turned up nothing,any help is appreciated Thanks Ross Bell [Non-text portions of this message have been removed]
RE: [Homebrew_PCBs] GBC laminator
2010-02-12 by Roger Blair
Oops, I forgot that this group doesn't do attachments. I forwarded it to Ross's personal address. If anyone else wishes, I can post it to photos. Roger
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From: Homebrew_PCBs@yahoogroups.com [mailto:Homebrew_PCBs@yahoogroups.com] On Behalf Of Roger Blair Sent: Friday, February 12, 2010 10:35 AM To: Homebrew_PCBs@yahoogroups.com Subject: RE: [Homebrew_PCBs] GBC laminator Ross, Attached is my attempt at reverse engineering. Not sure it is exactly right, though. Regards, Roger From: Homebrew_PCBs@yahoogroups.com <mailto:Homebrew_PCBs%40yahoogroups.com> [mailto:Homebrew_PCBs@yahoogroups.com <mailto:Homebrew_PCBs%40yahoogroups.com> ] On Behalf Of ross b Sent: Thursday, February 11, 2010 9:34 AM To: Homebrew_PCBs@yahoogroups.com <mailto:Homebrew_PCBs%40yahoogroups.com> Subject: [Homebrew_PCBs] GBC laminator Hi All: I would like to modify my GBC H-65 laminator, does anyone have or know where to find the wiring schematic, a google search turned up nothing,any help is appreciated Thanks Ross Bell [Non-text portions of this message have been removed] [Non-text portions of this message have been removed]
Re: GBC laminator
2010-02-12 by sailingto
Roger - could you post in the files section? I don't have the H-65 but am always interested in mods - might find something I could use on my GBC. Ken H> --- In Homebrew_PCBs@yahoogroups.com, "Roger Blair" <Roger.Blair@...> wrote:
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> > Oops, > > I forgot that this group doesn't do attachments. I forwarded it to Ross's personal address. If anyone else wishes, I can post it to > photos. > > Roger
RE: [Homebrew_PCBs] Re: GBC laminator
2010-02-12 by Roger Blair
Ken, When approved, it should show up here: http://groups.yahoo.com/group/Homebrew_PCBs/photos/album/1587588139/pic/list Regards, Roger
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From: Homebrew_PCBs@yahoogroups.com [mailto:Homebrew_PCBs@yahoogroups.com] On Behalf Of sailingto Sent: Friday, February 12, 2010 11:07 AM To: Homebrew_PCBs@yahoogroups.com Subject: [Homebrew_PCBs] Re: GBC laminator Roger - could you post in the files section? I don't have the H-65 but am always interested in mods - might find something I could use on my GBC. Ken H> --- In Homebrew_PCBs@yahoogroups.com <mailto:Homebrew_PCBs%40yahoogroups.com> , "Roger Blair" <Roger.Blair@...> wrote: > > Oops, > > I forgot that this group doesn't do attachments. I forwarded it to Ross's personal address. If anyone else wishes, I can post it to > photos. > > Roger [Non-text portions of this message have been removed]
Re: GBC laminator
2010-02-12 by sailingto
Thanks Roger - looks like I do have a GBC H-65 laminator after all. I had not looked for a model number other than on front panel. While looking at your schematic I thinks - that sure looks like my wiring! it is. I do have a question for you - couple actually. 1st question - what program did you draw that up in? Sure looks good. Could you mail the full size file direct to me? sailingtoo@... 2nd - where/how did you get the temperature ratings of the thermal switches? By testing? OR did your switches have the value on them? My switches have no value that I can tell. I removed the LOW temperature switch and put a relay that is controlled by a ATmega168 chip for a rough form of temperature control. A new sensor was clamped in place of the thermal switch. Thanks for the work you did in getting the schematic together. Ken H.
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> When approved, it should show up here: > > http://groups.yahoo.com/group/Homebrew_PCBs/photos/album/1587588139/pic/list > > Regards, > > Roger
Re: GBC laminator
2010-02-12 by sailingto
Roger, do you have any idea what the temperature trip point of the roller overtemp switch is? Ken H>
RE: [Homebrew_PCBs] Re: GBC laminator
2010-02-12 by Roger Blair
Ken, See my comments inline below: Roger
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From: Homebrew_PCBs@yahoogroups.com [mailto:Homebrew_PCBs@yahoogroups.com] On Behalf Of sailingto Sent: Friday, February 12, 2010 1:12 PM To: Homebrew_PCBs@yahoogroups.com Subject: [Homebrew_PCBs] Re: GBC laminator Thanks Roger - looks like I do have a GBC H-65 laminator after all. I had not looked for a model number other than on front panel. While looking at your schematic I thinks - that sure looks like my wiring! it is. I do have a question for you - couple actually. 1st question - what program did you draw that up in? Sure looks good. Could you mail the full size file direct to me? sailingtoo@... <mailto:sailingtoo%40gmail.com> >>> I used AutoTRAX DEX for the schematic, and used screen capture to get the .jpg. I'll email that to your personal address. <<< 2nd - where/how did you get the temperature ratings of the thermal switches? By testing? OR did your switches have the value on them? My switches have no value that I can tell. >>> Those values are really meaningless; that was a first shot at figuring out what I had, and used an IR temp probe to 'see' into the top vents to get those values which represent an averaging of the readings. Since then I found that I could 'see' the rollers through the path slots with the probe, and noted that the highest temp I get on high heat is 200F, +/- a couple. I haven't done an exhaustive test regimen (yet), as I have been trying to produce something at the same time. (I know. not smart!) <<< I removed the LOW temperature switch and put a relay that is controlled by a ATmega168 chip for a rough form of temperature control. A new sensor was clamped in place of the thermal switch. >>> I am looking for the most simple variable control circuit to do that, haven't found anything DIY suitable yet; I haven't gotten into programmable stuff yet. Can you elaborate some on the ATmega bit?<<< Thanks for the work you did in getting the schematic together. Ken H. > When approved, it should show up here: > > http://groups.yahoo.com/group/Homebrew_PCBs/photos/album/1587588139/pic/list > > Regards, > > Roger_ [Non-text portions of this message have been removed]
RE: [Homebrew_PCBs] Re: GBC laminator
2010-02-12 by Roger Blair
Ken, Sorry no, all I can say is that I can hear what I think are the snap switches actuating, and I did not open up the overtemp protective sleeve to see what it looks like, or do any research on it.
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From: Homebrew_PCBs@yahoogroups.com [mailto:Homebrew_PCBs@yahoogroups.com] On Behalf Of sailingto Sent: Friday, February 12, 2010 1:14 PM To: Homebrew_PCBs@yahoogroups.com Subject: [Homebrew_PCBs] Re: GBC laminator Roger, do you have any idea what the temperature trip point of the roller overtemp switch is? Ken H> [Non-text portions of this message have been removed]
Re: GBC laminator
2010-02-12 by sailingto
On the ATmega168 chip - are you familiar with the AVR line of chips? The Arduino is one product that makes it easy to program without know all about C++ or any of the other stuff. Heck, can't be too hard, even I can program simple stuff:) Do you use ExpressPCB program any? Neat little program for drawing schematics and PCB layouts - that's what I'm using most of the time. Am starting to fool around with Eagle some also. Eagle is more powerful, but a more learning curve... more like AutoCAD. I'm using a temperature sensor (AD22100) to send a voltage signal back to the m168 chip (ATmega168), then the m168 sends a OFF/ON signal to a MOSFET to turn an electronic relay on/off. I could have used a mechanical relay also, but just happened to have the electronic relay courtesy a fine Gentleman who hangs out on this and other groups. I plan to do some Pulse Width Modulation of the signal to control the temperature a tad closer than currently controlled. A person could also use the PWM to slow the motor down if desired. The temperature and setpoint are displayed on a LCD (also courtesy of same gentleman) - really a slick little controller. "IF" you're interested in building one, I'll be more than happy to help - I can send you the PCB layout in PCBExpress so you can etch a board (or perhaps etch one for you if need be?) and work with you on the programmed chip. I worked the code out on a breadboarded setup, then etched the PCB and transferred the circuit. It's not fancy, but it does work. Ken H>
Re: GBC laminator
2010-02-13 by saposoft
There is a cheaper and easier solution than an Arduino and IC temp sensor, if you look back in the archives of the group you can find a few solution for tempo control cheap and easy to DIY. mine is located here http://sites.google.com/site/elettronicaarduinoesperimenti/Home/thermostat-with-ua-741 You need a thermometer for the first calibration, but once you do this it will work like a charm, I'm using it for my laminator. have fun Sapo
Re: [Homebrew_PCBs] Re: GBC laminator
2010-02-13 by Stefan Trethan
I agree, this can be done with a coupe of scrap bin components. And if you really want temperature display just buy a controller off ebay, they are 20-30$ from china and take all kinds of thermocouples or thermistors as input. Can't beat that by messing about with microcontrollers. ST
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On Sat, Feb 13, 2010 at 8:54 AM, saposoft <sapoliste@...> wrote: > There is a cheaper and easier solution than an Arduino and IC temp sensor, if you look back in the archives of the group you can find a few solution for tempo control cheap and easy to DIY. > mine is located here > http://sites.google.com/site/elettronicaarduinoesperimenti/Home/thermostat-with-ua-741 > You need a thermometer for the first calibration, but once you do this it will work like a charm, I'm using it for my laminator. > have fun > Sapo
Re: GBC laminator
2010-02-13 by sailingto
You are correct there - that approach is cheaper.... and Stefan is correct - a person "could" spend $30+ for a temperature controller that would hold the temperature closer to setpoint.... but where is the fun in that? This was a chance to etch a PCB, design a circuit, and do some uC programming. Great fun:) Had I purchased all the components the cost would surely have been more than buying - but due to the generosity of a friend and my spare parts bin, I think about the only thing purchased for the temperature sensor itself... oh, and the $3 Radio Shack box. I have several of the $4 uC chips laying around and this was a perfect chance to learn some code for the uC. Ken H> --- In Homebrew_PCBs@yahoogroups.com, "saposoft" <sapoliste@...> wrote:
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> > There is a cheaper and easier solution than an Arduino and IC temp sensor, if you look back in the archives of the group you can find a few solution for tempo control cheap and easy to DIY. > mine is located here > http://sites.google.com/site/elettronicaarduinoesperimenti/Home/thermostat-with-ua-741 > You need a thermometer for the first calibration, but once you do this it will work like a charm, I'm using it for my laminator. > have fun > Sapo >
Re: [Homebrew_PCBs] Re: GBC laminator
2010-02-13 by Stefan Trethan
Depends on how much time you have on hand. Personally I have so much stuff to do that I just can't buy off the shelf for a reasonable price. I get plenty of uC time there, so I have no desire to re-invent the wheel for practice. So for me it's always the most simple solution I can possibly find that gives the required performance at the required price in the required time. If that's an off the shelf component, that's fine too. Not always are the controllers suitable, I had to replace one with my own circuit because hysteresis was too much. I left the controller in place for a readout display, and as a safety circuit with a slightly higher setpoint. My laminator (built from a copy machine fuser) still runs just fine with the single transistor controller. That was just meant as a "quick test" one day... but at least I put it in a plastic box to reduce the electrocuton hazard. ;-) ST
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On Sat, Feb 13, 2010 at 2:31 PM, sailingto <sailingtoo@...> wrote: > You are correct there - that approach is cheaper.... and Stefan is correct - a person "could" spend $30+ for a temperature controller that would hold the temperature closer to setpoint.... but where is the fun in that? This was a chance to etch a PCB, design a circuit, and do some uC programming. Great fun:) > > Had I purchased all the components the cost would surely have been more than buying - but due to the generosity of a friend and my spare parts bin, I think about the only thing purchased for the temperature sensor itself... oh, and the $3 Radio Shack box. I have several of the $4 uC chips laying around and this was a perfect chance to learn some code for the uC. > > Ken H> >
Re: GBC laminator
2010-02-13 by sailingto
Ahh, but Stefan, you are so far ahead of me in knowledge and experience on this electronic stuff there is no comparison. Sometimes it helps me to learn/understand things if I *re-invent the wheel* - that really helps me understand rather than just buy something off the shelf. .....and as I approach retirement - this stuff is a LOT more interesting than just sitting on the porch watching traffic go by:) Ken H> --- In Homebrew_PCBs@yahoogroups.com, Stefan Trethan <stefan_trethan@...> wrote:
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> > Depends on how much time you have on hand. > > Personally I have so much stuff to do that I just can't buy off the > shelf for a reasonable price. I get plenty of uC time there, so I have > no desire to re-invent the wheel for practice. >
Re: [Homebrew_PCBs] Re: GBC laminator
2010-02-13 by Stefan Trethan
I just have too many projects that never got finished. There's never enough time, and at some point I find the ready made thing at a price I like and the project is forgotten. Now if I limit myself to building stuff I am unlikely to find ready made there is less of a danger of this kind of thing happening and more of a chance of actually finishing something. When I had more time (and less money to spend) I would also do crazy things, like make my own banana plugs. But now I don't use them any more because, let's face it, the commercial ones are better, so now I wonder if this was really time well spent. ST
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On Sat, Feb 13, 2010 at 4:19 PM, sailingto <sailingtoo@gmail.com> wrote: > Ahh, but Stefan, you are so far ahead of me in knowledge and experience on this electronic stuff there is no comparison. Sometimes it helps me to learn/understand things if I *re-invent the wheel* - that really helps me understand rather than just buy something off the shelf. > > .....and as I approach retirement - this stuff is a LOT more interesting than just sitting on the porch watching traffic go by:) > > Ken H>
GBC laminator
2013-06-08 by Rich
Hi, New to this group. Has anyone experience of the GBC 1200? Is is ok to take .064 board and settings for dry film and laser toner? Rich