SST-50 Mag with 3" reflector

[zelda]

I started some time ago with a 3" head for a Mag625 since the reflector 2" is too small for a big bulb. I also bought AW-Driver, but after a short on time, the solder went liquid and the driver died

The head is made of 6061-T6 and it was done on a "hobby lathe".
It tooks a LOT of hours, the raw piece was 95mm (3.74"). So you can imagine with small feeds and 500W motor, it will nearly never completed.
Next time, I buy for sure a compleat head

Its a 2 1/2C mag with 3 GP SCHR Ni-hm cells in direct drive. After charging them, I let them stay for 2 days or I do a quick discharge to drop the voltage.
It starts at 5.8A, after 35min its 4.2A. The ideal battery

Some pics from the head:







Here is it!




the other lights look so small


comparsion SST-50 Mag - 4x SSC P4 Mag - P7 D-bin directdrive



comparsion Mag85 SMO vs SST-50 Mag



comparsion Mag85 SMO vs SST-50 Mag


zelda

[Erasmus]

Wow! Good job

[jasonck08]

Wow nice......

[420light]

Wow, that's big

[darkzero]

What reflector did you use? Any void at tightest focus?

[TranquillityBase]

Beautiful

[ti-force]

That's amazing! Excellent work!

[ti-force]

What reflector did you use? Any void at tightest focus?

+ 1

[Icarus]

Great job!

[zelda]

The reflector is from fivemega, I ordered a VLOP but it looks like more a SMO.
I cant say its a "SMO" or "VLOP". It has small rings from begin to end, maybe this qualify as a VLOP.

The complete head weighs with reflector and 3mm thick glass 414 gr (13.3oz) so thats pretty heavy,
but I have some play with a average 6mm wall thickness.



zelda

[Fulgeo]

Nice! BTW what kind of "hobby lathe" did you use?

[mrartillery]

Cool! you should make em to sale

[zelda]

Its a noname lathe:

there are some others manufactor who sell very similar lathes.

Its upgraded with a 3-phase 400v 500w motor ,Multifix tool holder & bigger chuck.

Cool! you should make em to sale

I would end as poor man when I m thinking about the time it take

10 years ago as a machinist, it would take with complete code maybe 10min on a cnc with "power" and CrMo-steel (around 1000Nm/mm2 tensile strength)

[hunter306]

Some awesome work on that head. The SST-50 works great with that large reflector!