RE: [CAD_CAM_EDM_DRO] Heatsinks for Gecko's

I have put pictures of Dan's heatsinks and a description on my website.
It is the last link in the top section of links on the page
http://www.ktmarketing.com/CNC.html

Price is pretty good. I was at my local electronics surplus store and
they wanted $9.95 for a heatsink that I would have needed 2 of and I
would still have to mess around machining them. Dan's single heatsink
will be easier to mount and they are already drilled. More than worth it
in my mind. Certainly cheaper than the CPU sinks and fans I currently
have attached to my drives and much more secure as a mounting plate. I
never did figure out how to mount the Gecko drives with the CPU fans
attached.

Tim
[Denver, CO]

> -----Original Message-----
>
>
> In many applications the Gecko drives with the provided
> heatsink mounting base is sufficient as is. . However, when
> more heat dissipation is required larger heatsinks are
> required. I have looked at the various options for using
> heatsinks on the Gecko G201A/G210 and the G320/G340. Some
> people are using small fans on the bottom of the GXXX but I
> looked at this and figured it was more trouble than is was
> worth. I also had needed to mount 4 G210A of a common
> heatsink and figured out a way. I was setting the current for
> 5A per phase so I definitely need a heatsink and a fan. I
> finally found one but I needed to modify it. It is
> 4.625X10.1L and 1.2"H I used my cnc mill to drill the 16
> holes that are tapped for 4-40 screws and then turned it over
> and milled the fins for relief. I mounted 4 G210's on them
> and mounted this in my G201/G210 case with a fan. The
> heatsink in mounted upside down so that the fins are facing
> the bottom of the case so some loss in dissipating the heat
> would be encountered however with the fan and the airflow
> over the heatsink I noted that with my 36VDC power supply
> that the heatsink temperature only rose 10F over ambient
> temperature with all 4 motors running where they would draw
> max current. I liked the way it work so well that I decided
> to make a batch of them. If interested in them send me some
> email offline. Dan
>
>
> [Non-text portions of this message have been removed]
>
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