Jump to content

Stargazers Lounge Uses Cookies

Like most websites, SGL uses cookies in order to deliver a secure, personalised service, to provide social media functions and to analyse our traffic. Continued use of SGL indicates your acceptance of our cookie policy.

DeepSkyMan

Depth and Thread Pitch for front cell screw on 8" Edge HD

Recommended Posts

Hi there, could someone please provide depth and thread pitch for the front cell screws on an 8" Edge HD, as in the empty socket portrayed in the attached photo:8" Edge HD, as in the empty socket portrayed in the attached pho

58ce8f56bf559_edgehdfrontcell.thumb.JPG.78bd68671b2ed078669e92d11fa15c97.JPG

 

Kind Regards

Paul  J.

Share this post


Link to post
Share on other sites

Paul, If you measure the diameter of the hole, this should give you an indication of the screw size, which, in all probability, will one of the standard metric sizes, used mostly now as the industry standard. Better still, if nothing is going to fall apart, take out the front cell screw shown in the photo, then you will have something to match accurately for screw depth and diameter.

There is an abundance of small quantities of metric screws on the Bay, black possibly difficult to match. I personally, would replace all screws with Stainless steel, there will be no chance of rust attacking them over time, if you do not like the bright colour, you can always black the heads.  Hope this helps :) 

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • Recently Browsing   0 members

    No registered users viewing this page.

  • Similar Content

    • By Geordie mc
      Hi. Just starting to use autofocus with the Celestron motor focus and SGP. Can anyone give me some starting points for step size, backlash etc. I’m getting there but wasting a lot of imaging time just trying to get this to work accurately. I’m currently trying a step size of 75 and a backlash of 50. Any tips most appreciated.
    • By Tugboat
      I'm having a bit of a clearout to make way for a new project.  For sale here are a couple of items that have seen very litle use:
      1) Celestron Omni CG-4 GEM Mount + Tripod - £125 *** SOLD ***
      This is in generally very good condition.  There are a few marks, and scuffs consistent with normal use.  There are also a couple of minor (small) patches of surface rust on a few of the bolts and steel legs.  It has seen very litle use, and has been in storage for the past few years so it is time to find it a good home.  The small rubber tips that go on the very end of the feet have perished, so these won't be included.
      It includes tubular steel tripod, 2 counterweights, built in polar scope, built in bubble level and slow motion controls.
      Due to size and weight, collection would be preferred from the RG27 area.  If you are reasonably local, I would also consider delivering.
      Price: £125, but I am open to offers.  Payment can be made via Bank Transfer (preferred), Paypal or cash on collection
      2) ***SOLD*** Celestron Omni XLT 127mm Telescope ***SOLD ***
      Again this is in very good condition, and has been in storage for the past few years and has had very little overall use.  A few marks on the dovetail as is to be expected.
      It includes a small finderscope, diagonal and a 25mm eyepiece
      Can be collected from the RG27 area, I could deliver if you are reasonably local, or can be posted for an additional £8.
      Price: £110, but am open to offers.  Payment can be made via Bank Transfer (preferred), Paypal or cash on collection *** NOW SOLD ***
      Any questions please do let me know.










    • By Gregely
      Hi SGL
      I popped this topic on CN too but noone seems to know anything.

      I came by an old Celestron Ultima 8 pre-PEC. I really like the scope and the mount it may be that I have read too much of Uncle Rod's and other's praise that I feel this scope has some intangible personality and charm.
      Anyway...
      Circuitry in the base seems to work fine even though the batteries don't hold charge but drive the Ra axis . I have 2 replacement on its way to me.
      Now my issue: It didn't come with a hand controller. I know it is not needed for tracking, and I don't have a Dec motor but I find it would be useful for centering in RA and D.A.R.V. method drift alignment.
      I was on the verge of making a crude controller out of veroboard and 4 momentary switches that I thought to be correct from the info on various sites, but then I came across an Ultima 8 project that clearly showed the hand controller for my scope.
      The pic attached is the one.
       
      I am looking for help on how the dial and buttons are wired in and/or photos of the innards of the hand controller or if anyone knows what else is inside the handbox.
      The sources I was going on so far is a combination of the following 3 links:
      https://www.cloudyni...ding/?p=8015749
      https://onstep.group...in/message/6300
      https://github.com/garlick/ultima8/blob/master/base/README.md
       
      These of course don't include drive rate rotary switch in the middle and if I could I would really like to to restore the full ability of this mount without spending too much  on electronics. Plus I don't want to spend time and effort on wiring something that doesn't work.
       
      Oh and lastly I have no background  or experience in electronics just own a soldering station and a whole lot of determination.
       
      Thanks in advance
      Greg

×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.