DIY Horizon to Horizon Polar Mount

Trust1 said:
Yes blademedia , now I understand .
For a non englischman like me , your lines are hard to read by the lack of comma's .
But I cut the lines and in that way is more clear to me .

the gearbox is 80/1 ratio for every 80 turns on the input shaft , the output shaft turns once the travel time , to do full arc is a estimated 6 minuets
try to move a standard actuator in one direction for 6 minuets , you cant because stops don't allow it to , so I have two options , one is to modify existing stops ,
this would involve finding cogs etc ect ect , other option is what I am going to , do hope understand now

I've stored a few (3) very heavy worm gearboxes with a 65:1 ratio , posted it some time ago .
A 36 V actuator motor for those gears would not powerful enough , probably I will use a 240 AC reductormotor .
Click to expand...
the actuator motor is a beast output shaft was 50mm will be no issues moving this dish, sorry my English is not good I Italian
 
today I make template exact size as build will be for slew ring, I now have all measurement's and angles. need to cut and weld
DSCN0702.webp IMG_2821.webp IMG_2824.webp IMG_2827.webp
 
blademedia,

I think your chain drive mount is going to be very good once it is completed. I hope it is up to your expectations when it is finished, will you be mounting your 2.4 metre channel master on it or have you plans for a bigger dish? I enjoy reading your project topics they show what can be achieved by knowledge and dedication.

Rgds
 
moonbase said:
blademedia,

I think your chain drive mount is going to be very good once it is completed. I hope it is up to your expectations when it is finished, will you be mounting your 2.4 metre channel master on it or have you plans for a bigger dish? I enjoy reading your project topics they show what can be achieved by knowledge and dedication.

Rgds
Click to expand...

thanks wont be going bigger than 2,4 dish. mount will handle bigger dish 100mm x 100mm box section. only hobby for me.
 
Made enquiry about this motor, I will need one for another mount I make for 1.8 dish
cxcxxxzzz.webp



(That motor looks to be a Thompson Saginaw brand with a Hall Effect Sensor. We now carry Venture Motors and not Thompson Saginaw.
The Venture Motor that replaced that particular motor is M63422BS Venture Motor. Your cost is $145.00 plus UPS Shipping)

Can expect similar price for shipping, pleased with this price was expecting to pay more
 
This Project is most impressive, thank you.
 
Thanks for kind words. hope it helps others to make in future.

Done some tweaking/preparing for welding. need to move in workshop now and weld. don't want to burn decking. been nice afternoon outside
IMG_2858.webp IMG_2856.webp
 
Cut chain ring to size, will only get one piece from it. rest twisted. not problem one will be ok its 50mm. will use off cuts to cap ends,

Start welding later today
IMG_2861.webp
 
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