BuckeyeStargazer EAF Mounting Bracket for GSO 3.25" Linear Bearing Focuser
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At this time, 3 versions are available as follows:
- Sold separately: EAF-GSO-2CRF-M: ZWO EAF bracket for the standard GSO 2" Crayford dual speed focuser
- Sold separately: EAF-GSO-2LBF ZWO EAF bracket for the GSO 2" Linear Bearing Focuser/TS Monorail
- This item: EAF-GSO-3.25LBF ZWO EAF bracket for the GSO 3.25" Linear Bearing Focuser
Please make sure that you purchase the correct adapter for your GSO focuser. Not for use with any non-GSO made focuser.
Important Note: The installation of this part requires you to replace 4 screws on the focuser housing that control the tension and smoothness of the focuser mechanism. If not replaced and adjusted correctly, the manual operation of this focuser - if you revert to this after installing the EAF - may be compromised and not be as smooth as before. However, EAF operation is not as sensitive to this reassembly and should not be impacted due to this.
We have had several customers do this installation fairly easily without problems, but please understand that the installation of this adapter will void your focuser warranty.
Please note that this is a 3d printed plastic part.
This bracket #EAF-GSO-3.25LBF allows you to mount a ZWO Electronic Automatic Focuser (EAF) onto your 3.25" GSO Linear Bearing Focuser. Besides being sold separately, these very popular focusers can be found on many GSO telescopes and GSO-made scopes sold under the Orion, TPO, Astro-Tech, Apertura, iOptron and other brand names.
Compatible with ZWO EAFN and EAF-Pro models only. Not for use with the discontinued EAF-STD and EAF-5V models.
Note that this adapter is NOT meant for use with GSO's single or dual speed Crayford focusers. This item also cannot be used with GSO's smaller 2" linear bearing focuser. Please ensure that you purchase this for GSO's 3.25" linear bearing focuser only.
The system consists of two parts: a bracket for your telescope and a coupler that attaches the EAF onto the focuser pinion. Connections are held securely with stainless steel M3 set screws. Where necessary, bracket mounting screws are provided. The ZWO supplied M4 screws are used to attach the EAF to the bracket. Note that the user will need to have a hex key/Allen key for the M3 set screws (not provided).
GSO Linear Bearing Focuser EAF Bracket Mounting Instructions:
Please follow carefully!
- With the bottom of the focuser pointing up to avoid falling, remove the 4 screws.
- Place the EAF bracket on the focuser and using the screws provided evenly tighten all screws until they are snug. Tighten 1/4 turn more, being careful to tighten all 4 screws evenly.
- Slide the coupler onto the focuser pinion shaft.
- Attach the EAF to the bracket.
- Tighten the set screws on the coupler. Do not over tighten.
Useful Resources
Other Information
- Country of Manufacture: United States
Please note that this is a 3d printed plastic part.
This bracket #EAF-GSO-3.25LBF allows you to mount a ZWO Electronic Automatic Focuser (EAF) onto your 3.25" GSO Linear Bearing Focuser. Besides being sold separately, these very popular focusers can be found on many GSO telescopes and GSO-made scopes sold under the Orion, TPO, Astro-Tech, Apertura, iOptron and other brand names.
Compatible with ZWO EAFN and EAF-Pro models only. Not for use with the discontinued EAF-STD and EAF-5V models.
Note that this adapter is NOT meant for use with GSO's single or dual speed Crayford focusers. This item also cannot be used with GSO's smaller 2" linear bearing focuser. Please ensure that you purchase this for GSO's 3.25" linear bearing focuser only.
The system consists of two parts: a bracket for your telescope and a coupler that attaches the EAF onto the focuser pinion. Connections are held securely with stainless steel M3 set screws. Where necessary, bracket mounting screws are provided. The ZWO supplied M4 screws are used to attach the EAF to the bracket. Note that the user will need to have a hex key/Allen key for the M3 set screws (not provided).
GSO Linear Bearing Focuser EAF Bracket Mounting Instructions:
Please follow carefully!
- With the bottom of the focuser pointing up to avoid falling, remove the 4 screws.
- Place the EAF bracket on the focuser and using the screws provided evenly tighten all screws until they are snug. Tighten 1/4 turn more, being careful to tighten all 4 screws evenly.
- Slide the coupler onto the focuser pinion shaft.
- Attach the EAF to the bracket.
- Tighten the set screws on the coupler. Do not over tighten.
At this time, 3 versions are available as follows:
- Sold separately: EAF-GSO-2CRF-M: ZWO EAF bracket for the standard GSO 2" Crayford dual speed focuser
- Sold separately: EAF-GSO-2LBF ZWO EAF bracket for the GSO 2" Linear Bearing Focuser/TS Monorail
- This item: EAF-GSO-3.25LBF ZWO EAF bracket for the GSO 3.25" Linear Bearing Focuser
Please make sure that you purchase the correct adapter for your GSO focuser. Not for use with any non-GSO made focuser.
Important Note: The installation of this part requires you to replace 4 screws on the focuser housing that control the tension and smoothness of the focuser mechanism. If not replaced and adjusted correctly, the manual operation of this focuser - if you revert to this after installing the EAF - may be compromised and not be as smooth as before. However, EAF operation is not as sensitive to this reassembly and should not be impacted due to this.
We have had several customers do this installation fairly easily without problems, but please understand that the installation of this adapter will void your focuser warranty.
Please note that this is a 3d printed plastic part.
This bracket #EAF-GSO-3.25LBF allows you to mount a ZWO Electronic Automatic Focuser (EAF) onto your 3.25" GSO Linear Bearing Focuser. Besides being sold separately, these very popular focusers can be found on many GSO telescopes and GSO-made scopes sold under the Orion, TPO, Astro-Tech, Apertura, iOptron and other brand names.
Compatible with ZWO EAFN and EAF-Pro models only. Not for use with the discontinued EAF-STD and EAF-5V models.
Note that this adapter is NOT meant for use with GSO's single or dual speed Crayford focusers. This item also cannot be used with GSO's smaller 2" linear bearing focuser. Please ensure that you purchase this for GSO's 3.25" linear bearing focuser only.
The system consists of two parts: a bracket for your telescope and a coupler that attaches the EAF onto the focuser pinion. Connections are held securely with stainless steel M3 set screws. Where necessary, bracket mounting screws are provided. The ZWO supplied M4 screws are used to attach the EAF to the bracket. Note that the user will need to have a hex key/Allen key for the M3 set screws (not provided).
GSO Linear Bearing Focuser EAF Bracket Mounting Instructions:
Please follow carefully!
- With the bottom of the focuser pointing up to avoid falling, remove the 4 screws.
- Place the EAF bracket on the focuser and using the screws provided evenly tighten all screws until they are snug. Tighten 1/4 turn more, being careful to tighten all 4 screws evenly.
- Slide the coupler onto the focuser pinion shaft.
- Attach the EAF to the bracket.
- Tighten the set screws on the coupler. Do not over tighten.
Useful Resources
Other Information
- Country of Manufacture: United States
BuckeyeStargazer EAF Mounting Bracket for GSO 3.25" Linear Bearing Focuser