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Updated 11/19/24

 

 
Dobsonian Goodies

Apertura/GSO motion/stability fix.

Apertura setting circles prototype
EZ adjust setting circles.
Height adjustment stands

 


Image Sharpening Masks
 
Visual: Fix turned down edge.     
Imaging: Remove mirror clip flare.
  

Premium Mirror Cells
for 6" to 13.1" mirrors.

Optimized support points.
Removes mirror-clip flarirng.

Imaging back-focus extender
Cell removes mirror-clip flaring.

 

Clamshell & Rotating Rings

For Dobsonian mounts
.
For Equatorial mounts
.
 
 
Favorite Links

Adventures In Deep Space

Golden State Star Party
Equatorial Platforms
 


ATM Products


Click here for example 1.5" ring thickness.
Ring inner/outer diameters combined up to 3".

Azimuth Bearing Laminate Rings.
Shipping costs

Black Formica laminate Crystal 42
Maximum 23.4" O.D. Width 1.5" thickness.
Laser cutting assures perfectly alignment.
Adhere using contact cement.

Wider and/or thicker rings upon request.
Rounds/Rings are at our choice.

Maximum outside diameter
Outside diameter desired.
Ring thickness up to 1.5"


 


Altitude Bearing Laminate 48" Strips.
Black Formica laminate Crystal 42
Sold in pairs (2 strips).

Shipping costs

Adhere using contact cement.

Width



 

Virgin Teflon (PTFE) Pads.

All Teflon 0.25" thickness.
Predrilled and countersunk for screws.
Includes #6 0.75" flathead screws.
Shipping costs

0.71"x1.25"
Altitude bearing pads.
1.00"x1.25"
Altitude bearing pads.
1.25"x1.25"
Azimuth bearing pads.
2.50"x2.50"
Includes laminate round.
Drilled for 3/8" center bolt.
Size /bearing /quantity



Let's fix this!

Roller ball bearings are too fast lacking any "stiction" for smooth start and stop motion. When the rocker box rides on a small diameter footprint instead of at the perimeter of the ground board is an invitation to wobble. Finally, the mount's weight should transfer directly into the ground board feet, not halfway to the azimuth bolt - in order to eliminate flexure and possible vibration.

Our laminate rings, 1/4" thick Teflon pads and positioning over the feet are the right stuff!
Also see our Integrated EZ manual setting circles, a great combination with this motion fix.

Apertura azimuth motion/stability fix

Mount
Ring O.D.
Price
AD6
16.00"
$30
AD8
18.75"
$36
AD10
21.50"
$48
AD12
23.38"
$48

Includes: laminate ring 1.5" wide (outside diameters above), 3 Virgin Teflon 1.25"x1.25"x0.25" pads, predrilled and countersunk. 6 stainless steel #6x3/4" Philips screws. Place the Teflon pads 120 degrees apart atop ground board foot screws.

Request shipping cost below in Laminate Shipping Quote.

Order


Shipping Costs

Non-US destinations or multiple items: Inquire using shipping quote form.


Item:
Include in same shipment:
Shipping:
Laminate ring.
Apertura fix.

Laminate strips.
Azimuth bolt assembly kit.
Teflon pads.

Please request quote at right.
Laminate strips.

Azimuth bolt assembly kit.
Teflon pads.
$12.00
Azimuth bolt assembly.
Laminate strips.
Teflon pads.

$12.00
Teflon pads.  
$7.00
Shipping Quote
Email address:
Repeat email:
Zip code or country:
Included items:
Laminate ring O.D.
Laminate strips
Azimuth bolt assembly
Teflon pads
Apertura Fix