Hello,
There is an alternative belt length that could be used without the 2 rollers but the position of the motors are fully at the end of the adjustment slots to get the belt to tension.
This means the RA motor will hit the declination shaft and would require a bit filing off the aluminium motor end plate to clear. There isn't a 'perfect' length belt available.
With the rollers in the belt path, final tension is achieved with the motor in the centre of its adjustment and not interfering with any other parts.
The rollers also makes the belt wrap further around the small 9 tooh pulley which engages more teeth with the belt and both belts are now the same length.
Hi Dave Thank you for explaining the reason for the tension rollers I have similar tension Rollers on my Dynamic Perception stage zero dolly.
Also another Question Dave are you doing the EQ6 pulley and belt kit soon ?
With the rollers in the belt path, final tension is achieved with the motor in the centre of its adjustment and not interfering with any other parts.
The rollers also makes the belt wrap further around the small 9 tooh pulley which engages more teeth with the belt and both belts are now the same length.
So Steffan are you going to do the Upgrade fom gears to pulleys with the parts Dave sells ?
I am glad he dropped in on this forum and told us about his kit for the HEQ5
I'm still torn between the Hungarian and the English kit. It's difficult to tell which one would work better, but I do like the sprocket remover tool Dave offers.
Yes Steffan Dave's kit has the spacer in it so it will fit and also look the picture
Good to see the longer screws as well.
The gear puller is a fantastic idea and a great time saver I would say the UK kit from Dave is more value for money.
Also have a look at this YouTube video I came across of what looks like a new AZEQ6GT
With a wobbly pulley shame shame.!!!! At the 22 second mark
That's an interesting observation on the video of the AZEQ6GT. It could be just the flange that makes the pulley look like its running out of true. But really bad if that's not the case !
The concentricity of the pulleys is obviously very important. The small pulley concentricity is is probably more important than that of the larger pulley. Errors from the small pulley will be faster and more difficult to guide out.
We machine the outer diameter, cut the pulley teeth and drill & ream the mounting diameter in one go on the our cnc machine. This method is much more accurate than buying in a stock pulley and then machining it to suit.
We will be looking in to making an similar kit for the EQ6, but will concentrate on the HEQ5 for now.
The EQ6 belt mod requires more work fitting it to the mount and we need to look carefully at making the kit as easy as possible to install.
Thanks, Dave.
Regards the AZEQ6, I have been mulling the idea of one myself for a while.
Pretty hard to tell from the video but there does not seem to be any corresponding movement in the belt to indicate that the functional part of the pulley has runout, it looks like it is just an end flange to retain the belt (That looks pressed on) that is not true.
When I saw this thread I was hoping it was going to happen soon, but I decided to buy now and hang the expense of the postage....Great service, ordered it last Friday evening and it arrived at my door yesterday morning....
This past weekend, I fitted the belt conversion to my EQ6, result is great, Very quiet, No backlash, No Gear noise.
Only had to file about 1mm on the worm shaft flat to bring the pulley into the right spot, Other than that, everything else was a perfect fit, no other mods required..........
