Drilling into copper? - Page 2

JFettig · 09-04-2003, 07:11 AM

the reason I say put them lower, is that there will be 2 really big hot spots right over them, and if the top isnt properly insulated those hotspost will transfer a good chunk of heat to the air around them.

Jon

RoboTech · 09-04-2003, 07:45 AM

Quote:

Originally posted by JFettig
where did those heaters come from? can you dimention them out in inches? Im kinda interested. Jon

They are Ogden Mighty Watt cartridge heaters #MWFX22-X (special order) left over from a project I did about 10 years ago. 0.25" dia. x 2.0" lg, 150 watt, 32 Volt, 7 ohm

Watlow also makes cartridge heaters - FireRod series. The problem with both of these sources is their stock heaters are designed to operate on 120 V or 240 V. I'm looking back into it - I'll post any findings in the Testing & Benchmarking > The Heat Die thread...

#Rotor · 09-04-2003, 05:59 PM

I think this is going to work much better,

nicozeg · 09-05-2003, 02:08 PM

No matter where you place the heaters, temp stability is going to take the same time, as it is needed to heat all that copper mass. The only way to get a faster response time is milling away a big portion of that. Given that fact, it's preferable to have the heaters lower to get a more even heat distribution.

#Rotor · 09-05-2003, 05:49 PM

more or less like so......

pHaestus · 09-05-2003, 06:33 PM

yup

#Rotor · 09-05-2003, 11:03 PM

Ok I will be doing this on a proper chunk of cast-iron....

My little press does not have the Hp to do this.

Will have pictures of the prosses shortly....

JFettig · 09-06-2003, 07:11 AM

Now your talking

ooh man, I love Bridgeports!

Jon

#Rotor · 09-08-2003, 06:33 PM

came out pretty damn good, Mind if I say so myself...

[edit for bandwidth friendliness

]

#Rotor · 09-08-2003, 07:13 PM

2 springs from a couple of dead BIC finepoints, and 2 short pieces of PVC on the back. This is to insure a very snug fit, while protecting the heater cartridge from getting damaged by over tightening.

JFettig · 09-08-2003, 07:31 PM

ut oh, guess what I just observed..... did you notice how those might be obstrocting the mounting hole places... or how do you plan on adapting it for that?

Jon

pHaestus · 09-08-2003, 07:37 PM

I am planning on encasing this in a box made of phenolic resin to insulate it when it returns. I was planning on just tapping AMD mounting holes into that.

#Rotor · 09-08-2003, 07:51 PM

let me kid no one not.... this is one big chunk of copper....

had it on a 12v car battery here, running the two elements in parallel.... took it about 5 minutes to get up to 55ºC... then I dis-connected, it's now 15 minutes after that, and it's slowly starting to come down.... about 0.1ºC every 10 seconds....

this thing should be awesome for getting some real accurate and extremely stable measurements.....

#Rotor · 09-08-2003, 08:09 PM

Nope, thought of that even before I got going in AutoCAD

09-04-2003, 05:59 PM	#28
#Rotor Cooling Savant Join Date: Feb 2002 Location: Dione, sector 4s1256 Posts: 852	I think this is going to work much better, __________________ There is no Spoon....

09-05-2003, 05:49 PM	#30
#Rotor Cooling Savant Join Date: Feb 2002 Location: Dione, sector 4s1256 Posts: 852	more or less like so...... __________________ There is no Spoon....

09-05-2003, 11:03 PM	#32
#Rotor Cooling Savant Join Date: Feb 2002 Location: Dione, sector 4s1256 Posts: 852	Ok I will be doing this on a proper chunk of cast-iron.... My little press does not have the Hp to do this. Will have pictures of the prosses shortly.... __________________ There is no Spoon....

09-08-2003, 06:33 PM	#34
#Rotor Cooling Savant Join Date: Feb 2002 Location: Dione, sector 4s1256 Posts: 852	came out pretty damn good, Mind if I say so myself... [edit for bandwidth friendliness ] __________________ There is no Spoon.... Last edited by #Rotor; 09-08-2003 at 07:04 PM.

09-08-2003, 07:13 PM	#35
#Rotor Cooling Savant Join Date: Feb 2002 Location: Dione, sector 4s1256 Posts: 852	Some close-ups of the actual retention 2 springs from a couple of dead BIC finepoints, and 2 short pieces of PVC on the back. This is to insure a very snug fit, while protecting the heater cartridge from getting damaged by over tightening. __________________ There is no Spoon....

09-04-2003, 07:11 AM	#26
JFettig Cooling Savant Join Date: Feb 2003 Location: Willmar MN/Fargo ND Posts: 504	the reason I say put them lower, is that there will be 2 really big hot spots right over them, and if the top isnt properly insulated those hotspost will transfer a good chunk of heat to the air around them. Jon

09-05-2003, 02:08 PM	#29
nicozeg Cooling Savant Join Date: Sep 2002 Location: Santiago, Chile Posts: 403	No matter where you place the heaters, temp stability is going to take the same time, as it is needed to heat all that copper mass. The only way to get a faster response time is milling away a big portion of that. Given that fact, it's preferable to have the heaters lower to get a more even heat distribution.

09-05-2003, 06:33 PM	#31
pHaestus Big Player Making Big Money Join Date: Aug 2001 Location: irc.lostgeek.com #procooling.com Posts: 4,782	yup

09-06-2003, 07:11 AM	#33
JFettig Cooling Savant Join Date: Feb 2003 Location: Willmar MN/Fargo ND Posts: 504	Now your talking ooh man, I love Bridgeports! Jon

09-08-2003, 07:31 PM	#36
JFettig Cooling Savant Join Date: Feb 2003 Location: Willmar MN/Fargo ND Posts: 504	ut oh, guess what I just observed..... did you notice how those might be obstrocting the mounting hole places... or how do you plan on adapting it for that? Jon

09-08-2003, 07:37 PM	#37
pHaestus Big Player Making Big Money Join Date: Aug 2001 Location: irc.lostgeek.com #procooling.com Posts: 4,782	I am planning on encasing this in a box made of phenolic resin to insulate it when it returns. I was planning on just tapping AMD mounting holes into that.

09-08-2003, 07:51 PM	#38
#Rotor Cooling Savant Join Date: Feb 2002 Location: Dione, sector 4s1256 Posts: 852	let me kid no one not.... this is one big chunk of copper.... had it on a 12v car battery here, running the two elements in parallel.... took it about 5 minutes to get up to 55ºC... then I dis-connected, it's now 15 minutes after that, and it's slowly starting to come down.... about 0.1ºC every 10 seconds.... this thing should be awesome for getting some real accurate and extremely stable measurements..... __________________ There is no Spoon.... Last edited by #Rotor; 09-08-2003 at 08:09 PM.

09-08-2003, 08:09 PM	#39
#Rotor Cooling Savant Join Date: Feb 2002 Location: Dione, sector 4s1256 Posts: 852	Nope, thought of that even before I got going in AutoCAD __________________ There is no Spoon....

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