Twinarm shown with accessories - Stainless Universal Mount Plate and Counterweight Shaft  20mm for Vixen weights etc.

Bottom female bolt thread available in either 10mm or 3/8-16 depending on the tripod you mount upon.
Dull Silver standard, optional black annodize $55 extra.
  Many adapters for telescopes, dovetail plates, and tripod mounts are described Below.  The 2 screws on the end of the arm visible in the photo are spaced 35mm (1-3/8") and are 6mm threads - which is the standard for a very large number of telescope tube mountings.  We can fit anything to it at Tech2000.

Universal Ringmount Adapter Plate shown above on the left - $55
You can adapt-mount anything with that one but check below first.

Counterweight Shaft Stainless Steel shown above on the right.  For either single or twin-arm.  If an instrument weighs >10 Lb then it should have the counterweight shaft added even if you do not use weights on the shaft.  If two instruments are mounted on a twinarm head then the counterweight shaft is recommended only if the DIFFERENCE between the two loads is > 10 LB.  For use of the Dob-Driver motor unit shown below, you should get a counterweight shaft whether you use a single-arm or a twinarm mount because the balance is more important then and your desire to "play" with multiple devices on this mount will surely be a force you will have a hard time to resist.  20mm (.785") dia. by 250mm (9.75") length.  10mm male thread screws into mount arm, free end has 8mm female thread for adding even more parts, Tech2000 Booster weights, or yet another instrument bracket - $40

Mizar painted aluminum plate for tube ring mounting with 2-bolt rings. - $50

Quick Exchange dovetail clamp for Vixen/Celestron/Mead etc. dovetails (1-3/4" rail widths) - $87

Instrument-tube rails for Vixen/Celest/homemade etc. 1-3/4" wide dovetail fits clamp above.  $48

Hardshell plastic case fits GR2DX and GR3 mounts, clamps, weight shaft, laser foam cut - $89
(Note- this case does not accomodate a GiroDrive drive unit if mounted to Giro)

Custom adapter between a special black-annodized GR2 DX mount head with a Vixen/Celestron 10mm base thread, and Bogen heavy-duty tripod with its' 3/8"bolt thread.  Typical price is only $48-$99 for custom-machining like this but it is usually not needed except for very-particular customer needs.  The 6061-T6 aircraft grade aluminum adapter is actually mated in two parts - but the seam is barely visible naked eye - due to the precision machining provided by Paul Schulden at Tech2000.

Composit photo of 20 images, showing the many ways we adapt telescope mountings, rings, and drives to Giro mount heads and tripods.  It is a piece of cake!  We mean easy, your cake probably looks more tasty than this photo.

Part Engineering & design and product engineering/design/fab are available via our parent corp. Techni-Digital Design, Inc.

DDR2-GR2 $749
  Clamps on to any existing Giro mount head, GR2DX or GR3 models, hex key provided with a very nice installation and operation manual, and carries all of the features of Dob-Driver II by Tech20000.  All accessories are available for Dob-Driver II such as Roboscope PC-link and ccd autoguider interface.  Dual-axis drive corrector and HRG-2x is already istalled as standard for super smooth tracking.  According to Rolf, the President of Tele-Optic "the device tracks impressively with high accuracy - great job!

Goto with a Tele-Vue Genesis-101 and Gibraltar tripod.  Our 12v battery is the counterweight.  Everything moves with the mount head -no cable tangles!

Twin Solar tracking at Astrofest '01, with white filter on Genesis-101 and Coronado filter on Tak Sky-90.  GR2 twinarm head & Giro Driver.

With a C8 on the Giro head and Dob-Driver II tracking.
DDR2-GR2 for Giro.

Tech2000:  Thanks I received it!  One wide field, one high-power light bucket, is a dream to use!  This pic using a C8 on a Giro mount with your superb GiroDrive.  -Oldfield

TECH2000 USA, 69 Ridge St. South, Monroeville, OH 44847
PH: USA 419-465-2997  FX: USA 419-465-2484  EM: info@tech2000astronomy.com