Go Back   IceInSpace > Equipment > Equipment Discussions
Register FAQ Calendar Today's Posts Search

Reply
 
Thread Tools Rate Thread
  #1  
Old 05-03-2019, 07:40 PM
Sunfish's Avatar
Sunfish (Ray)
Registered User

Sunfish is offline
 
Join Date: Mar 2018
Location: Wollongong
Posts: 1,909
Heq5 puck

I have been having a little trouble with the pointing and tracking performance of a second hand HEQpro. Imagine my surprise when I removed the puck and found that it was held on with three tiny grub screws into alloy which had clearly allowed some movement. I am glad I have only used a 3.5kg scope.

I would like to modifiy this (some tapped screws? )The design is pretty bad and based on appearance and cost rather than performance.


Does the EQ6 or 8 have a better system. ?

Where the scope is clamped in the dovetail by two 5/16 bolts it seems disproportionate and cheap to hang an expensive scope on a puck fixed with three tiny set screws where other mounts have 2 x 8mm bolts. Particularly slewing with a heavy scope.

Has any one seen a modification?
Reply With Quote
  #2  
Old 05-03-2019, 07:57 PM
raymo
Registered User

raymo is offline
 
Join Date: Sep 2011
Location: margaret river, western australia
Posts: 6,070
I've not heard of a mod, and not heard of anyone having a problem with the puck. I carried 11kg for imaging, and up to 14.5kg for visual, on mine for
just over 7 yrs. I only sold it because it became too heavy for me in
my dotage.
raymo
Reply With Quote
  #3  
Old 05-03-2019, 08:02 PM
AstroApprentice (Jason)
Registered User

AstroApprentice is offline
 
Join Date: Dec 2015
Location: Melbourne, Australia
Posts: 349
Adm

Not cheap, but an excellent replacement:
https://www.admaccessories.com/produ...sirius-mounts/
I replaced my old EQ5 puck with ADM and it made a big difference.
Reply With Quote
  #4  
Old 05-03-2019, 09:06 PM
Merlin66's Avatar
Merlin66 (Ken)
Registered User

Merlin66 is offline
 
Join Date: Oct 2005
Location: Junortoun Vic
Posts: 8,904
Ray,
the set-up on the NEQ6 is very similar....
I swapped to the ADM vixen/ losmandy Puck on both my HEQ5 and NEQ6.
Touch wood, no issues, no drama and a more flexible mount.
Reply With Quote
  #5  
Old 05-03-2019, 09:11 PM
Ukastronomer (Jeremy)
Feel free to edit my imag

Ukastronomer is offline
 
Join Date: Jan 2019
Location: Llandysul, WALES, UK
Posts: 1,381
What is a PUCK
Reply With Quote
  #6  
Old 06-03-2019, 01:14 AM
Saturnine (Jeff)
Registered User

Saturnine is offline
 
Join Date: Jul 2008
Location: Wollongong
Posts: 2,140
Hi Ray
I have an HEQ5 and have not had a problem with the 3 grub screws, just make sure they are nipped up securely. You could take the puck out and smooth off where the grub screws have been biting in but an easy mod if you want something more robust, without actually replacing the puck, is to drill and re-tap to 6mm and fit 6mm grub screws.
Reply With Quote
  #7  
Old 06-03-2019, 01:17 AM
Saturnine (Jeff)
Registered User

Saturnine is offline
 
Join Date: Jul 2008
Location: Wollongong
Posts: 2,140
Jeremy
The puck is actually the tapered seat under the dovetail saddle, which fits into the top of the Dec. housing of the EQ head
Reply With Quote
  #8  
Old 06-03-2019, 01:23 AM
Saturnine (Jeff)
Registered User

Saturnine is offline
 
Join Date: Jul 2008
Location: Wollongong
Posts: 2,140
Images of the puck
Attached Thumbnails
Click for full-size image (HEQ5 Puck 001.jpg)
165.5 KB29 views
Click for full-size image (HEQ5 Puck 002.jpg)
171.9 KB24 views
Reply With Quote
  #9  
Old 06-03-2019, 07:20 AM
Sunfish's Avatar
Sunfish (Ray)
Registered User

Sunfish is offline
 
Join Date: Mar 2018
Location: Wollongong
Posts: 1,909
Thank you for the replies. I will clean up the old score marks and tighten in a new spot for now.

The ADM looks like a good replacement and perhaps the alloy is harder, milled rather than cast. The old puck is soft and the screws seem to bight through.

True that a slightly larger size screw would offer more purchase for the hex key if nipping tight.
Reply With Quote
  #10  
Old 07-03-2019, 12:41 PM
AstroApprentice (Jason)
Registered User

AstroApprentice is offline
 
Join Date: Dec 2015
Location: Melbourne, Australia
Posts: 349
PrimaLuce Lab

I also highly recommend PrimaLuce Lab clamps and they sell replacement HEQ5 pucks:
https://www.365astronomy.com/primalu...-g-mounts.html
and puck/clamp kits:
https://www.365astronomy.com/primalu...eq5-mount.html
Reply With Quote
  #11  
Old 07-03-2019, 07:47 PM
Ukastronomer (Jeremy)
Feel free to edit my imag

Ukastronomer is offline
 
Join Date: Jan 2019
Location: Llandysul, WALES, UK
Posts: 1,381
So a puck is in reality a DOVETAIL clamp got it
Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +10. The time is now 11:22 AM.

Powered by vBulletin Version 3.8.7 | Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Advertisement
Bintel
Advertisement
Testar
Advertisement