A matter of Balance

After a number of weeks procrastinating I finally got round to drilling and tapping the holes that I need to do in order to mount the LX200R OTA on to the dovetail for the EQ6 Pro mount. However having done this and mounted it all up I discovered that when I tried to balance the mount I could not achieve balance with the existing counterweight bar.
What I needed was a longer bar, the question is

where on the island could I find a cheap solution?

I finally found what I needed in one of the local DIY stores, an 18mm threaded rod about a meter long. In order to fit the retaining ring from the original counterweight bar I would need to cut down the end of the bar in order to make a M10 thread or the other option which Helen came up with was to drill and tap a M10 hole in the end and us a M10 bolt cut down to join the two pieces together.

Below is a photographic explanation of the modification. Enjoy :

The first step was to mark the center of the bar by using a square to draw lines across

Then having worked out the center this is then punched with a centre ready for drilling

Drilling downwards with the hand drill trying carefuly to keep the drill streight. The hole is only about 1/2 inch deep.

Moveing up to a bigger drill meant moving on to a different clamping method

The Hold drilled out to 8.5mm and ready for tapping

Helen tapping the hole to M10 thread

The hole tapped and ready to take the bolt

The M10 Bolt inserted

And cut to the required length ready to take the retaning ring from the original counterweight bar

The retaning ring in place

The new counterweight bar fitted to the EQ6 pro mount

The mount fully assembled and balanced. On the whole the system works very well with the longer bar. The only down side is that after a slew it can take a secound or to for the mount to settle due to vibrations in the counterweight bar.

Tried to do some observing this night but with lots of fast moving clouds and bad seeing ( very unusal for La Palma, but the weather has been funny here for a few weeks) it was almost impossible to get aligned and when I did it was very hard to see much anyway. But it was enough to convince me that the scope and mount combination would work quite well.