[Emc-users] Heat dissipation?

2013-06-24 Thread Viesturs Lācis
Hello! A client is asking me for a small machine that would burn their logo in wooden parts. They want to do it with a heated element that would be actuated by pneumatical cylinder. My only concern that I have not yet figured out is keeping down as much as possible the amount of heat transfered

Re: [Emc-users] Heat dissipation?

2013-06-24 Thread andy pugh
On 24 June 2013 18:40, Viesturs Lācis viesturs.la...@gmail.com wrote: I would like to ask, if somebody has ever done something similar and could share some tips about best practices how to attach that heated stencil to pneumatic cylinder. I have seen water-cooled blocks used for similar

Re: [Emc-users] Heat dissipation?

2013-06-24 Thread Marius Liebenberg
You could epoxy a piece of ceramic rod into two pieces of tube. One at both ends. One attached to the heated element and the other tube to the rod. On 2013/06/24 07:40 PM, Viesturs La-cis wrote: Hello! A client is asking me for a small machine that would burn their logo in wooden parts. They

Re: [Emc-users] Heat dissipation?

2013-06-24 Thread Stuart Stevenson
possibility http://www.morganthermalceramics.com/products/ On Mon, Jun 24, 2013 at 12:54 PM, Marius Liebenberg mar...@mastercut.co.zawrote: You could epoxy a piece of ceramic rod into two pieces of tube. One at both ends. One attached to the heated element and the other tube to the rod.

Re: [Emc-users] Heat dissipation?

2013-06-24 Thread TJoseph Powderly
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Re: [Emc-users] Heat dissipation?

2013-06-24 Thread andy pugh
On 24 June 2013 18:40, Viesturs Lācis viesturs.la...@gmail.com wrote: I would like not to reinvent the wheel, so will appreciate any advices. I think the search term would be thermal break though that is mainly finding me structural things like: http://www.farrat.com/tbn100-47.html -- atp If

Re: [Emc-users] Heat dissipation?

2013-06-24 Thread TJoseph Powderly
On 06/24/2013 12:47 PM, andy pugh wrote: On 24 June 2013 18:40, Viesturs Lācis viesturs.la...@gmail.com wrote: I would like to ask, if somebody has ever done something similar and could share some tips about best practices how to attach that heated stencil to pneumatic cylinder. I have seen

Re: [Emc-users] Heat dissipation?

2013-06-24 Thread John Kasunich
I agree with the thin-walled tube approach. Use stainless steel. Stainless conducts 1/3 as much heat as regular steel, and 1/10 as much as aluminum. There is a table of thermal conductivities at http://www.engineersedge.com/properties_of_metals.htm There are a few materials in that list that

Re: [Emc-users] Heat dissipation?

2013-06-24 Thread Marius Liebenberg
Certain compounds are but not all. You want a very porous one. You will get heat transfer but not a lot and it depends on how long you make the rod. Very hard compound will conduct a lot of heat. On 2013/06/24 08:17 PM, Viesturs La-cis wrote: 2013/6/24 Marius Liebenberg mar...@mastercut.co.za

Re: [Emc-users] Heat dissipation?

2013-06-24 Thread Gregg Eshelman
On 2013/06/24 07:40 PM, Viesturs La-cis wrote: Hello! A client is asking me for a small machine that would burn their logo in wooden parts. They want to do it with a heated element that would be actuated by pneumatical cylinder. In other words they want a small, electrically heated,