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Hello, I have this focuser, is there any plan to build a focuser riser? I use my scope with 2 different coma correctors. One shifts original focus 35mm outward, and other one shifts original focus 15mm inward. To achieve focus with relative same drawtube position i need 50mm and move mirror but have only 30mm because of tube dimensions and need to lengthen optical path by additional 20mm. For example Feathertouch focuser and old Steeltrack have risers available and some of us would appreciate the same thing here. Thanks in advance.
Question by: Tomas Mojzis on Sep 29, 2020 11:37:00 PM | 1 Answer(s)
I bought recently this focuser, but i made the hugh mistake to move the drawtube align screws and now nothing work correctly the tube is no more aligned. Do you have a trick to put the drawtube perfectly on axis ? I tried but its not okay at all.....
Thank you
Alexis
Thank you
Alexis
Question by: Alexis on Jun 11, 2018 3:28:00 PM | 1 Answer(s)
Hi, I would like to purchase a Baader Diamond SteelDrive System Without Hand Control, part number 2957152 plus a Baader 2 Inch Diamond Steeltrack NT Focuser, part number 2957230. Can you tell me if this set up would fit a Skywatcher Newtonian 200p and then controlled through a laptop using Sequence generator pro without the hand controller.
Hope you can help,
Kind regards,
Phil Rees
Hope you can help,
Kind regards,
Phil Rees
Question by: Philip Rees on Apr 7, 2018 6:06:00 PM | 1 Answer(s)
I want to mount this focuser on a flat (wood) square tube and need to determine the diameter of the hole to make and how much margin for error I have. It seems that I need a hole that is slightly larger than the draw tube, but most commercial scopes have a larger hole. Also, I want to drill the proper holes for the bolts. Please advise.
Question by: Patrick McDivitt on Oct 19, 2021 12:13:00 AM | 1 Answer(s)
Please advise the output shaft diameter (mm) for both sides of the focuser knobs. One shaft is connected to the black colored knob, and the opposite side shaft is connected to the gold colored knob. I can't find the shaft diameters in any of the drawings.
Thank you
Thank you
Question by: Wayne Richardson on May 1, 2020 11:03:00 AM | 1 Answer(s)
Does the S58 dovetail mean that the steeltrack effectively has a rotator built in? I mean, if I use an S58 dovetail to M48 adapter for example to thread into my imaging train, I could then clamp it down onto the steeltrack in any chosen orientation of the camera?
Question by: Paul B. on Mar 11, 2019 9:26:00 PM | 1 Answer(s)
I would like to use this focuser on my scope using your flat base # 2957231
Am I forced to buy the 2" BDS-NT Baader Diamond Steeltrack® Focuser # 2957230 with the delivered Versabase that would be useless for me or can I buy only the focuser without it and with of course a lower price ?
Am I forced to buy the 2" BDS-NT Baader Diamond Steeltrack® Focuser # 2957230 with the delivered Versabase that would be useless for me or can I buy only the focuser without it and with of course a lower price ?
Question by: Jean-Pierre PROST on Oct 4, 2020 7:24:00 PM | 1 Answer(s)
I have an Orion UK VX8 and the focuser hole spacing is 86.5mm (square). I can't tell from your technical drawing if the steeltrack will fit this spacing. The versabase width (horizontal) works but I'd like to confirm that its height (vertical) spacing works at 86.5mm.
Question by: Michael Kantor on Sep 9, 2022 9:59:00 PM | 1 Answer(s)
I am interested in your Diamond Steeltrack NT Focuser for replacing the original Rack & Pinion focuser (which is lacking 1:10 fine-focus) on my Sky-Watcher Explorer-PX250 telescope (Aperture 254 mm, Focal length 1200 mm, Newton reflector).
Have you a base plate for this focuser which is suited to this telescope tube? I have measured the distance for the bore holes lengtwise to the tube to be about 86 mm, and crosswise to about 81 mm. The latter distance is measured with a caliper, i.e. it is the straight distance between the holes, not the slightly longer distance measured along the circumference of the tube. The tube diameter is 285 mm.
I hope there is a suitable base plate available for my telescope.
Have you a base plate for this focuser which is suited to this telescope tube? I have measured the distance for the bore holes lengtwise to the tube to be about 86 mm, and crosswise to about 81 mm. The latter distance is measured with a caliper, i.e. it is the straight distance between the holes, not the slightly longer distance measured along the circumference of the tube. The tube diameter is 285 mm.
I hope there is a suitable base plate available for my telescope.
Question by: Gunnar K. on Oct 27, 2016 10:58:00 AM | 1 Answer(s)
- Description
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Details
Video of mounting instructionsBDS-NT Mounting instructions
on an 8" Newtonian telescope in nine simple steps- Remove current Focuser
- Remove screws and spacers of BDS-NT Diamond Steeltrack®
- Loosely mount new focuser using the old holes
- Remove focuser from VersaBase by opening 8x hex screws
- Use old screws and nuts for centering VersaBase plate
- Drill four new 5mm holes (straight to tube center) in the middle of each elongated cutout
- Attach radial sliding bolts, fasten from inside out with hex tool as shown
- Remove old screws. VersaBase plate is now adjustable for your needs
- Attach Diamond Steeltrack® in prefered position, tighten 8x hex-screws
BDS-NT strip shimsUsing NT-strip-shims of Baader VersaBase
for different tube sizesOur mounting instruction above was made on a 8" Newtonian – for these instruments our strip shims (adjustment spacers) are not needed. For other tube diameters, please use our strip shims between the telescope tube and the Baader VersaBase (the base of our BDS-NT Diamond Steeltrack®). You gain up to 4mm height. Please note the self-explanatory gif to the left.
Application example of BDS-NT Diamond Steeltrack®
Comparison of Classic and Diamond Steeltrack®General Specifications for all Baader Diamond Steeltrack® (BDS) focusers:
Drive system
- True diamonds form a micro-geared high precision drive system never accomplished before
- In comparison to conventional crayford or rack & pinion drives, this micro-geared movement has zero backlash, zero cogging, and zero flexure
- Diamond Steeltrack® 2" focusers lift a payload of 6kg (13 lbs) straight up, without slipping, without excessive bearing preload (bearing preload can be increased further if necessary)
- Bearing system utilizes unbreakable Instrument Grade Roller-Bearings instead of simpler Ball Bearings - handles higher loads with greater rigidity and accuracy. No Teflon-pads anywhere
- 1:10 Stainless Steel fine-focus mechanism, ready for attachment of the optional Diamond Steeldrive temperature-compensating motor drive system
- Detachable drive block assembly is reversible for right hand or left hand fine-focus operation and for attaching the Diamond Steeldrive motor block
- Shortest possible mechanical design achieves optimum balance between focuser height (backfocus) and rigidity requirements
- Zero shift locking knob to precisely stop any movement without affecting optical axis adjustment
Multiple Adapters available for shortest possible connection to most cameras / eyepieces
Mounting of BDS-Adapters on the example of BDS-NT Diamond SteeltrackClamping system
- S58 Dovetail ring-clamp built into focusing tube for accepting optional T-2 / M48 / M68 and other S58 direct-thread adapters to enable direct thread connection of accessories and cameras without 2" clamp
- 2" eyepiece clamp with hardened bronze clamp ring (length of clamp: 12.5mm / ½") included as standard
- Optionally available 2" Baader Clicklock-clamp w. integrated S58 dovetail (added length: 16mm / 5/8")
- Two auxiliary threads (M60x1 and M55x0,75) cut into the RT & NT focusing-tube for attachment of dedicated field flatteners or focal reducers/correctors
BDS-NT: all views
Imaging / eyepiece projection on the example of BDS-RT Diamond SteeltrackFocusing Drawtube:
- Each bearing individually adjustable for precise alignment of mechanical vs. optical axis
- Ultra-hard subzero coated bearing races – precision milled and much harder than anodizing or stainless steel
- Oversized 55mm inner clear diameter, to prevent vignetting, with anti-reflection knife-edge baffles
Additional Information
| Manufacturer | Baader Planetarium |
|---|---|
| SKU (#) | 2957230 |
| Net weight (kg) | 1.02 |
| EAN Code | 4047825031990 |
| Focuser Travel | 40 mm |
| Payload Capacity (kg) | 6 kg |
| Inner Diameter / Clear Aperture (mm) | 55 |
| Shortest overall height (standard) | 63 mm |
| Shortest overall height (w. opt. adapters) | 50 mm |
| Reduction | 1:10 |
| Rotatable | Yes |
| Finder base | No |
| Motorized | No, but can be upgraded |
| Special Features | True diamonds form a micro-geared high precision drive system |
| Included Accessories | Includes Baader Versabase, for perfect fit onto most tube diameters. Optional flat mounting base also available |
| Outer Connection (lens sided) | Dovetail ring, S88 |
| Inner Connection (eyepiece/-camera-sided) | Thread, Clamp, Dovetail ring clamp, M55, S58, 2" (50,8mm) |
| Optional Accessories | Baader Steeldrive temperature compensating motor drive system |
| compatible telescopes | Newton |
| Focuser style | Crayford |
| Focuser size | 2 inch |
Instruction manuals
Featured:Technical Drawings
Product Information
