JBC tip cartridge pinout and power

[Tooms]

Hi

I am thinking to use the very good JBC tip for some project and was looking at the net for the details about the tips but have not found what i need.

it is the jbc tip cartridge with 3 pin connector.
http://www.jbctools.com/tech-area.html#modulSLEEP&HIBER

What is the pinout on them??

what is the volt, amp, watt ??

what type of sensor is there in them ??


Hope your guys can help.

Tooms

[digsys]

Hi. Are you intending to make your own station and just use JBC hand-pieces? There are some quite long, well informed threads on
this site, just do a search for JBC. Many here rate is as their favourite brand, including myself. All the info you need is here, and quite
recent, so try that first (unless someone else pops up).

[Rufus]

I am thinking to use the very good JBC tip for some project and was looking at the net for the details about the tips but have not found what i need.

What is the pinout on them??

I repost this image from another thread here cos I can't be bothered to find it again.

The heating element is about 2.4 ohms cold. The wire in a 245 hand piece is skinny 3 cores and about 0.12 ohms each.

Not sure anyone knows exactly what the thermocouple is. Probably Nichrome is used for the heater element and one side of the thermocouple. The other side could be anything, possibly stainless steel maybe Nisil making it close to an N type. Another problem is the cold junction will be the other end of the cartridge which gets warm.

JBC drive the heater with full half mains cycles at about 24v. They put about 170W into the heater during warmup. I am pretty sure the heater is driven through the thermocouple.

I have considered the design of a controller for these cartridges and it isn't simple to do it properly. JBC measure the thermocouple during what looks like about 30uS of dead time around mains zero crossing.

Someone in one of the other threads was making a controller but I don't think anything was posted recently - he probably discovered it isn't simple.

[Tooms]

Thanks guys, that is some good information and i will try search the forum for the other JBC threads.

The idea is to see if they can be used as a heater in a 3d printer head and was thinking that JBC has used alot of design and test time to make them work very well so maybe they are working better then the normal resistor in the 3d printer head.

I think i will try buy some of the JBC tip cartridge and see how it works.


Tooms