Hi All,

Please let me know if there is already a thread for this model.

I have completed the Eaglemoss Orrery and am very happy with it, I have just started on the Earth, Moon and Sun Orbiter.

One problem I'm having with this model is that I am finding that some of the small grubscrews and screws are difficult to get in, so much so that I have had to buy an M3 tap and die set to re-bore some of the threads.

I have already messed up the head on one of the screws.

Is anyone else having similar problems?

Thanks,

Neil.

Thanks for the response Spal,

I haven't received the tap/die set yet, I will post back once I have tried the fix.

Neil.

Hi there Neil.

Welcome to the forum too!
I built the Earth, Moon and Sun Orbiter when it first came out after the Orrery, when I can collect the courage I'll be completely stripping her down and rebuilding as one of the grub screws has broken off down in the main drive assembly and the gears just go round without actually driving anything above it!
I seem to remember some of the grubs were a little on the tight side. What you will notice through this build is that the fit and srewing up tight is far more critical than it was on the Orrery, especially when you get to the chain drives. The most difficult part I found was fitting the two side panels into the base section - the first isn't too bad, the second is an absolute pig!!
Best of luck with your build, it does look fantastic when its finished (as long as its displayed so you can't see a side panel is missing!!)

Robin

PS I've got a set of taps and dies, I might try that route as well.

I know it's a long time since I wrote my first post on this, my apologies.

To catch up, I received the tap set and successfully cleaned out the holes for the grubscrews, all is now ok as far as that is concerned.

However, coming to the final stages I am having difficulty getting all the gears to mesh, particularly the final large gear that rotates the Earth /Moon part. The problem is that the sheer weight of the extended arm is causing a sag, so that the gears drop below each other. It's as though a much tighter tolerance is needed on the columns that are under the Sun, to stop the arm dropping. Did anyone else have this problem? I have tried loosening the grub screws on the approriate parts, supporting the arm and re-tightening. This has improved the situation but not solved it completely.

I know this is a long shot after all this time, but does anyone have a solution?

Thanks,

Neil.