StewMac tools

LMI Temperature Controller for silicon blanket or DYI alternative?

Questions about tools and jigs you want to buy/build/modify.

LMI Temperature Controller for silicon blanket or DYI alternative?

Postby Stephen M. Faulk » Fri Oct 27, 2017 8:50 pm

I'm mulling over the worth or getting the LMI temperature controller vs. putting together something, or using something from another industry. I live in an area were the power is 100 volts. I'm buying a new silicon blanket too, curious if the Keenovo blankets are any good?

Anyone have feedback on the temp controller in relation to its cost? Is it really all that? And is it built to last?
Stephen M. Faulk
 
Posts: 27
Joined: Sat Jan 28, 2017 3:58 am

Re: LMI Temperature Controller for silicon blanket or DYI alternative?

Postby Bob Hammond » Sat Oct 28, 2017 7:04 am

Hmm, 100 volts? sounds like Japan. But $20 router speed controller should do nicely. Check Harbor Freight:

https://www.harborfreight.com/router-sp ... 43060.html
Bob Hammond
 
Posts: 551
Joined: Sun Jul 22, 2012 4:13 pm

Re: LMI Temperature Controller for silicon blanket or DYI alternative?

Postby Stephen M. Faulk » Sat Oct 28, 2017 12:06 pm

Hey Bob, yeah Japan. The Southwest Coast uses 100 volts, the North and East uses 110. It goes back to the days of the first power companies serving different areas and the southerners have historically been an independent lot. Kyushu is 100.

So I guess that means the brand name fancy controller is over priced? I was using some ancient lab equipment but it went kaput, so I'm getting something new. I forgot about the router speed controller.
Is there a thermometer you can work up with it? I seem to get about ten years out of a silicon blanket, and I'm going to buy #3.

The last one got a small tear and frayed, it went up in blazes, quite dramatic, but I had the water spray bottle right there and the conflagration was dispatched right away. Fun!
Stephen M. Faulk
 
Posts: 27
Joined: Sat Jan 28, 2017 3:58 am

Re: LMI Temperature Controller for silicon blanket or DYI alternative?

Postby Barry Daniels » Sat Oct 28, 2017 12:07 pm

I prefer to make my own jigs/tools using the newest technology. So I put this together a few years ago with Fred Tellier's help over on the OLF. The temperature controller is from eBay for about $30. It uses a K-type thermocouple that you insert into the sandwich. Set the temperature you want and just sit back. I love it and have much better bending results than when I just used a dimmer switch.
Attachments
IMG_0622.jpg
IMG_0621.jpg
MIMF Staff
Barry Daniels
 
Posts: 1722
Joined: Thu Jan 05, 2012 10:58 am
Location: Houston, Texas


Re: LMI Temperature Controller for silicon blanket or DYI alternative?

Postby Stephen M. Faulk » Sun Oct 29, 2017 8:46 pm

Thanks for the feedback, I'm busy moving my shop to a new location 700 meters away...and my wife is riding my ass about cleaning the old shop and getting the deposit back, so I have to deep clean the old one today...

When I finish with all this moving stuff I'll put this together, I'll need some help.
Stephen M. Faulk
 
Posts: 27
Joined: Sat Jan 28, 2017 3:58 am

Re: LMI Temperature Controller for silicon blanket or DYI alternative?

Postby Bob Hammond » Mon Oct 30, 2017 2:04 pm

Stephen, I still do it with the Mark I brain and eyes, and use a kitchen oven thermometer with a cabled probe, costing about $10-15. It has over/under temperature alarms, and has sufficient precision for this application. I also use it to check the relative humidity, by first noting the room temp, and then wrapping the probe with a wet cloth sock, and then placing it in front of an open dust collection port (the d/c running of course ;)). I note the temperature when it's stable, and then consult published sling psychrometry tables to determine the RH from the difference between the dry & wet readings.

But I still look at my visually practical shopbuilt RH indicator, It has a long time constant for its response to RH changes, rather than a momentary measurement of ambient RH
Attachments
practical RH stick.jpg
Bob Hammond
 
Posts: 551
Joined: Sun Jul 22, 2012 4:13 pm


Return to Tools and Jigs

Who is online

Users browsing this forum: No registered users and 2 guests

Your purchase from these sites helps support the MIMForum, but only if you start at the links below!!!
Amazon music     Amazon books     Amazon tools     Rockler tools     Office Depot    

The MIMF is a member-supported forum, please consider supporting us with a donation, thanks!
 • Book store • Tool store • Links •