SST-50 Mag with 3" reflector

zelda

Enlightened
Joined
Aug 14, 2005
Messages
277
Location
Zurich, Switzerland
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:
P1000468.jpg

P1000469.jpg

P1000470.jpg




sst_mag_1.jpg

Here is it!
sst_mag_2.jpg

sst_mag_3.jpg

sst_mag_4.jpg

sst_mag_5.jpg

the other lights look so small ;)

indoor_1.jpg

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

outdoor_1.jpg

outdoor_2.jpg

comparsion Mag85 SMO vs SST-50 Mag

outdoor_3.jpg

outdoor_4.jpg

comparsion Mag85 SMO vs SST-50 Mag


zelda
 
:goodjob: :twothumbs


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

smo_vlop.jpg


zelda
 
Last edited:
Its a noname lathe:
drehbank.jpg

there are some others manufactor who sell very similar lathes.

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

Code:
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)
 
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