Ajak Patriot

[RimaNTSS]

Creating this thread just in case I decide someday go ahead with new project - to have 1.8m glass dish installed on this motor. Motor looks OK, in fool working condition. Connected 20V DC and it moves H-H easily taking only ~0.5A. So, when I start the project then I will probably do the following things:
- change reed switch to optical or hall sensor;
- eliminate declination adjustment on the motor;
- make new declination adjustment mechanism separately;
- connect the dish in such a way that it's center of gravity will be on the turning axis of the motor;
- change majority of nuts&bolts from galvanized to INOX and from imperial sizes to metric.
- maybe will go to USALS (need to start with that anyway).
When...... ? I do not know! Maybe soon. ;)

 

[RimaNTSS]

Assembled solid base on the floor of the garage, so vertical pipe can be adjusted plumb and no dot moves around. Also, for modeling purposes made couple of metal plates out of 4mm thick metal (later will probably use ~5mm thick INOX). A a main pipe will use 80x40x3mm INOX.

 

[Channel Hopper]

The Ajak motor drive was/is a highly underrated piece of kit. It should be possible to fit a whole VBox inside the cover and run it from a 36V DC supply down the old ribbon cable from the house.

 

[Captain Jack]

Yeah been looking for one for ages but never seen it on sale.

 

[RimaNTSS]

Got some INOX today, will use some of it for the construction.

 

[RimaNTSS]

Continued construction today. So far so good. Not ideal, of course.

 

[Captain Jack]

Is the long pole for balancing?

 

[RimaNTSS]

Yes, on it antenna will counterweight itself. I will cut away piece of it after dish is installed, so it will not be so long.

 

[moonbase]

As a point of information from some info I found online, the AJAK motors were made in three different variants.

AJAK Patriot - basic model, rated for up to 7.5ft mesh dish
AJAK Aimer - medium model, rated for up to 10ft mesh dish
AJAK H-180 - deluxe model, rated for up to 12ft mesh dish

I would guess that the dish size rating would be less for solid dishes?


Rgds

 

[RimaNTSS]

Thanks. Manual says

The PATRIOT is designed for eight-foot mesh antennas or six-foot solid antennas (or smaller).

And, if I eliminate problems of dish moving from the end positions than 6-foot glass dish should not be a problem.

 

[moonbase]

Thanks. Manual says

And, if I eliminate problems of dish moving from the end positions than 6-foot glass dish should not be a problem.

Yes, it should easy take a 6ft glass dish. Looking at the build quality inside the casing, I do not think the actual dish weight would be the issue with larger dishes, its probably the wind load. There is probably a safety margin built into the figures, these motors look like that can take more than they are rated for.