I'm not familiar with your mill so I did a bit of googling but that only came up with 25 and 30 types. If I was in your position, I would bite the bullet and ditch the complicated belt arrangement and buy a vfd and 3-phase motor combination. This will obviate the need for a gearbox, which you say is problematic anyway. Not what you wanted to hear, maybe, but will solve your problem at a stroke. I did a similar upgrade to my Warco VMC mill and am very pleased with it.

John

PS. With regard to photo orientation, I always load my photographs into an image manipulation application – in my case the classic form of Paint for Windows – and resave it as a jpeg before adding to an album on here. This strips out the meta data.

Malcolm,

The drive to your mill is very similar to that used on my VMC. See the picture below:

The pulley arrangement in the centre of the drivetrain is effectively a jockey wheel and allows the belts to be adjusted for tension and/or be repositioned on their respective pulleys to change the ratios. I have not changed the positions you see above since fitting the uprated 2HP 3-phase motor and the VFD (Variable Frequency Drive). I haven't found it necessary to alter it as the VFD, via the remote pendant unit, provides all the control required.

On the mill, I use a Huang Yang VFD and a pendant control from the Internet for the mill and similar arrangements for the lathe and shaper. I'm too lazy to make my own and prefer to just throw money at that sort of thing. There are numerous YouTube videos on VFD installation and the manual provides adequate information on wiring it all up. If all else fails, it's been covered on this forum many times and a site search from halfway down the home page will give you hours of fun reading on the subject.

Feel free to PM me if I can be of any further assistance ,

John

Edited By John Hinkley on 22/02/2022 17:31:09

You have new PMs

Howard

Hi, like John Hinkley, I can't recall Chester doing an Eagle 20, and I've not found any adverts for a Chester one, though that doesn't mean they didn't do this size. This style of milling machine is called the generic Taiwanese type lathes.co.uk and were badged by quite a few companies, the Minor one from Warco in the ad from 1981 below, shows it with the table size about the same as Malcolm has stated his is in his previous thread. The belt drive on all these machines has the same layout, but the speeds may well be different for each size of machine, the year they were made and/or the company that sold them.

Regards Nick.

Edited By Nicholas Farr on 23/02/2022 09:15:30