BH-20H Harmonic Drive Equatorial Mount Portable Design/Extra Large Load Ratio

Description: Description BH-20H Harmonic Drive Equatorial Mount Portable Design/Extra Large Load Ratio/Upgraded Version of BH-17H Features: - Ultra-portable size: The size of folded body is only 228*177*134mm; its side projection area is less than 53% of that of A4 printing paper - Large load-to-load ratio: self-weight 5kg; hammerless load 22kg; RA shaft adopts 20-type 160 harmonic, which improves torsional rigidity by 80%, compared with BH-17H; can meet the load requirements of 10-12-inch reflective star camera system - Motor direct drive: Directly driven by high-resolution stepper motor + high subdivision driver, the guide star response has no transmission time lag; it ensures no backlash and completely avoids errors caused by the transmission structure; no aging or tearing caused by thermal expansion and contraction of the synchronous belt - Strong power: RA axis adopts 57 type high-power stepper motor to ensure accurate and stable step distance in any direction; with no backlash harmonics, featuring excellent wind resistance - Hammer-free leveling: 71mm ultra-short RA wheelbase, and a large gear ratio harmonic load center of gravity 22cm from the RA axis, 22kg within 15cm of the DEC axis, safe for deep space photography - Modular design: The controller is newly upgraded V2.0 to optimize stability. The controller is separated from the equatorial mount body, which is flexible to upgrade and easy to maintain; the bottom interface is compatible with a variety of tripods, including photography tripods; the body reserves an electronic polar scope/laser interface - Cost-effective: This equatorial mount focuses on tracking and searching for guide stars, creating a model of high cost-effectiveness - Self-locking after power failure: it is safe and worry-free to lock motor in 0.2 seconds. This harmonic equatorial mount adopts patented stall lock design, no longer let accidental power outage threaten the safety of your equipment - Multi-platform access: Adopt open-source ONSTEP control system, fully support all kinds of guide and star map software; support handle, computer, WIFI hotspot, APP, Bluetooth and other access methods; support for PHD MDL THESKYX MetaGuide NINA SGP and other professional software; Support for ASIAir, ASCOM, INDI and other star map platforms - High-precision harmonic: The RA shaft adopts the industry leader Leaderdrive's high-precision harmonic reducer; its unique tooth shape still has a long service life under high torque. And after astronomical training, the inherent periodic error is reduced, and the tracking process is more stable and smooth - Its main control board can permanently save the time coordinates, and there is no need to reset it after booting; and it can memorize four sets of locations for quick switching - Multi-latitude mode switching: latitude and longitude mode 90°; mid-latitude mode 20-55°; low-latitude mode 0-30° - Ultra-small size; ultra-light and automatic - The front cover has reserved interface for easy installation of electronic polar scope - RA axis 20-160 harmonic deceleration; DEC axis 17-100 harmonic deceleration - Compatible with a variety of column tripod installation; tripod adapter can be customized - The whole hollowed out 6 series aging treatment; high-strength aluminum alloy body - Free weight levelling Specifications: - Drive form: motor direct drive harmonic - Front stage transmission error: none - Weight: 5.0kg - Hammerless load: 22kg or 47Nm - Load with hammer: 30kg (3kg counterweight at 30cm from RA axis) - RA axle wheelbase: 71mm - RA axis motor: 57 stepper motor - RA Axis Harmonics: 20-160 Standard Edition - DEC axle wheelbase: 101.5mm - DEC axis motor: 35 stepper motor - DEC Axis Harmonics: 17-100 Standard Edition - Maximum goto speed: 3.5°/s 840X - Control system: Onstep external - Latitude adjustment: 0~55° - Heavy hammer seat: standard - Theodolite mode: handle replacement - Power off anti-dump: stall lock - Handle: Integrated hand control box V2 - Guide accuracy: 0.6~1.1 - PE: about ±20" - PE cycle: about 270s - Dovetail groove: 60° 74 wide - 20~55°Elevation angle single-turn adjustment: 0.91°~0.97° - 0~30°Elevation angle single-turn adjustment: 0.9°~1.25° - Bluetooth: Support Bluetooth 4.2 - WIFI: Support (Max 20M) - USB: standard USB2.0 type A drive-free direct connection - ASCOM: Support - IND: support - ZWOAIR: Support - Multi-star calibration: support - Auxiliary epipolar axis: support - Star Gallery: Comes with 20000+, with star catalogue including M, NGC, and IC - Power supply: DC12~24V at least 2A Package Included: - 1 x Equatorial Mount Payment Terms 1.We accept PayPal only. 2.All major credit cards are accepted through secure payment processor PayPal. 3.Payment must be received within 7 business days of auction closing. 4.We ship to your eBay or Paypal address. Please make sure your eBay and Paypal address is correct before you pay. Shipping Terms - For remote regions, we will charge your extra shipping costs. Usually it cost about 35USD-50USD. We will contact you after your payment. Thanks for your understanding. Return Terms 1. If you receive defective item, please kindly notify us within 14 days. We will guide you the returning instruction for replacement or refund. 2. If you purchased in improper condition, please NOTE that the sipping and handling fee will not be refund, all return shipping fee should paid by the buyer unless item DOA. 3. We reserve the right to refuse any returns for objective reasons. Custom Duties & Taxes 1. Import duties, taxes, and charges are not included in the item price or postage cost. These charges are the buyer's responsibility. 2. Avoiding some unnecessary trouble, please check with your country's customs office to inform us what we should declare its value before shipping. Feedback 1. If you are dissatisfied for any reason, please don't be quick to leave us neutral or negative feedback. We work hard to make sure EVERY CUSTOMER 100% SATISFIED and resolve any problem for you and always leave positive feedback to all our customers. 2. If you are satisfied with the product you received, please kindly leave us a positive feedback and 5 star DSR. If there is any problem of your order, please feel free to contact us firstly, we are responsible and credible seller, will follow it for you asap. On Sep 16, 2022 at 19:32:27 PDT, seller added the following information:

Price: 2685 USD

Location: Shenzhen

End Time: 2023-11-17T03:27:12.000Z

Shipping Cost: 0 USD