FS: Copper "BIG RET" S2+ triple heatsinks [Closed]

Hah! If you post it they will pay for it. With a limited run and first come first serve I didn’t want to miss out but now I have 3 S2+’s and all will have copper sinks. Need to start some more wood but can’t decide what goes best with red, green, or grey.

I’ve decided to make all three versions of the S2+ heatsinks for this run, in both single and triple variants: the “air gap” solder ring version, “screwdriver” version, and retaining ring version. The retaining ring version will feature a brass retaining ring for now. The retaining ring version won’t be particularly suited to drivers with components on both sides like the 8x7135 Q-lite, but the other versions are.

The plan for the D01 heatsink is to make a fairly thick one. Well, .35” thick. [9mm] The threads engage with the full available shelf threads in the neck. There will be an optional bolt on driver tower, the same one that fits the Octo-Sink, if you don’t want to stick with the stock driver. The driver tower bolts to the heatsink rather than the contact plate. Different towers can be made. I’ve got one designed for 17mm, Taskled H6Flex, and a generic platform that can be cut for 19mm+ drivers. The towers are made from aluminum and the drivers are retained by screws. I will also make a replacement press fit contact plate from 4oz copperclad G10.

When will the S+ heatsinks be made ?

Hi Hoop. Please put me down for a D01 heatsink. Been waiting a long while for someone to make one of these :smiley:
The driver tower for a 17mm driver sounds perfect! Cheers

I’d be interested in a D01 heatsink/shelve too as long as its affordable. Subscribed

INTL shipping isn’t very cheap so I don’t expect many overseas customers. I will probably only ship with full insurance and an accurate declared value as well.

I’m still interested although I do realise international shipping is expensive having sent stuff from the UK to the US. If there were several UK customers I don’t mind buying the heatsinks and then posting them on once o had received them (although then customs fees may be expensive)…

Canada shouldn’t be too bad. Nothing fancy, USPS Intl standard.

I’ve looked more into international shipping and am now offering it. Retail value will be declared on the customs forms.

Canada shipping is an additional $8. International shipping is an additional $12, generally.

Well, I see now that the NUV mtn fet+1 has a .048” thick mcpb. How quirky. For this board to work with the screwdriver heatsinks, solder needs to be added to the ground ring of the board to increase its thickness by .015”.

Alternatively I could re-face all of the heatsinks to make the driver pocket only .045” deep. It would be a challenge to get everything deburred again after refacing.

FML.

All my MTN FET drivers are 1.6mm.

Well that’s good. Do you have any of the new red ones?

No. I’ve got the straight FET drivers, not the plus 1 7235 version.
I just built 10 last night… If need be, I guess I could order parts for the newest version.

Negative.

Anyways I think it’ll be no big deal for the user to add a couple solder spots on the MCPB ground ring if using NUV boards. I’ll change the pocket depth for future parts.

I believe the red PCB is pretty new, so anyone with older versions should be thicker.

Yep. I’m pretty sure I can just add a slight counterbore for the screw heads to better accommodate different thicknesses of MCPB, rather than changing pocket depths or re-facing.

That sounds idea like it will pretty well cover all eventualities.

Just about got the retaining ring version fine tuned:

I’ll cut a few singles and triples in this style then move to the “air gap” solder versions before finishing the 2nd ops of everything.

I’m anxiously looking forward to these…hurry up and wait on my end.

Hoop, that machining is seriously a work of art. The finish is exceptional. Next time l’m in town would you mind if I dropped in? :slight_smile: