Member postings for Mexican jon

Has anyone built one of these kits from Bengs? Looking at the kit it seems to be quite good and I was just curious to see what others thought.

Thanks for the link, but I already have a list of camlock sizes! I’m confused as all the camlocks ive seen before are either 3 or 6 pin? The one in the picture has 4 pins ?

Can anyone identify this camlock it’s fitted to a 15” Harrison

The world gone crazy 

Edited By Mexican jon on 09/03/2018 02:54:33

Edited By Mexican jon on 02/11/2017 23:55:36

I need the drawing of the stepped pulley for the spindle (quill) not the motor pulley or the jockey pulley & the drawing for the table arm, the casting that goes from the main column to the drilling table. Thanks

Edited By Mexican jon on 24/10/2017 11:05:29

Has anyone got a copy of the drawings for the above mentioned Sensitive Drilling Machine? I've acquired 1 which is damaged.  I've ordered the replacement castings from GLR (stepped pulley & table support arm) and I really don't want to lay out for a full set of plans for just the correct dimensions for these 2 small pieces. Any help or guidance greatly appreciated.

Edited By Mexican jon on 24/10/2017 08:34:14

**LINK**

Gives an insight to some repairs

I need to find some replacement hard jaws for a 4" 3 jaw Pratt & Bernard, Does anyone know of a sensibly priced place?

Hi Andrew

I should have worded that better yes it could be run but would give out slightly less than half of it's rated power and if you want to control the speed reliably you are still going to need a VFD so you may as well change the motor ?

Regards Jon

Dave

The motor that you have is a conventional 3 phase motor, so it cannot be run from a 1 phase to 3 phase VFD. 230v 3 phase is the european standard and is very common place in this country in control situations. As you have mentioned you are a sparky so just think about Ohms law for the power output of the motor 3 phase 440v will be less current than 1 phase 220v, but you could still have the same output power (well almost exactly the same) Being a sparky I would look about for a secondhand motor and a secondhand VFD and wire it up yourself, buy a small ABs box for the fwd/rev switch and the speed pot I just picked a new WEG industrial 1HP motor dual voltage still in its box for £50. Looking on ebay VFD's come up for less than £100 so to my way of thinking that would be the way to go.

Regards Jon

Hi Dave

First thing to check is the motor you already have if the I.D. plate lists the motor as dual voltage i.e. 3 phase 220/440 then things are looking good as you will be able to run the motor of a 1 phase 220v to 3 phase 220 VFD If your motor is 3 phase 440 only then I would look at changing the motor out for a 3 phase 220 motor with a VFD (drives direct do a complete package ready to bolt on to a myford) this will give you the best of both worlds, infinate speed variations and reversing at the flick of a switch. The other advantage with a lot of VFD's is they come with a digital display on them so you can use this as a speed ref.

Regards Jon

If I was doing it I'd clamp the sheet between two pieces of ply, drill the holes and then clamp through the holes and then use a fret saw to cut the shape out. Possibly finishing the edges with a little bit of filing / sanding.

Regards Mex

I managed to pick a Quorn up a couple of years ago, It was in a second hand shop (from the estate of deceased engineer) £160 is all i paid for it as the shop keeper didn't have a clue what it was. My thinking was that'll get used loads, well it still sits in my tooling cupboard where i put it when i got home. The reason for this is as some others have said with indexable tooling and throw away tips and the general price of replacement cutters these days it's easier to just get new, and use the time it would have taken to sharpen the blunt tooling to carry on machining, building or reading the latest posts on the forum.

Regards Mex

A gear I made by machine and hand profiling, not the best pictures. But what do ya think.

Edited By David Clark 1 on 25/09/2012 09:50:12

Oops

Never thought this would get of hand !!

All I was asking or thinking was that if I had a long MT2 arbor which was supported by the tail stock (considering this will be a set up on a myford with a myford dividing head, cutter held on the arbor)sorry if i didn't mention this before)) that is would be more versatile and better than a stub arbor. As for marking one, yes i agree it would be nice to make my own but as others have said would it be economical. Any ways sorry if I caused an argument I was just looking for opinions to whether my way of thinking was right wrong or indifferent.

Regards Mex