Member postings for Ian Parkin

All motors in my workshop with vfd's are mainly connected with 4 core flex from the vfd

on a few its screened and i have only connected screen at the vfd end

I have 18 such motors in all on my machines from 100 watts to 3kw

But one would have thought that his industrial electrician would have known about that

Whenever i have needed to cut a female thread acme/trapisiodal I have never been able to cut with a tap I've always had to single point it before and use the tap to clean up...even in small sizes

My 2p

Ian

Given that Paul is in Canada the motor is probably star wired for 220v....here it would be 415v for star 240 for delta/mesh

Could it be that the motor has been wired delta rather than star..that would cause it to draw too much current and get hot if Paul is feeding in 220v into his VFD

Mark i'm in south sheffield so not too far away shout away when you need help

Ian

I'm used to moving big machinery > 20 tonnes or so

Edited By Ian Parkin on 13/02/2017 19:20:56

Where are you mark?

If you need any help on the day I'm available with dollys sack barrows jacks hoists etc

I have a similar sized but slightly lighter mill the 30 size mill (240kg)

I took it to bits to go in my car and carried it through the house down 13 steps into my workshop and then reassembled just about manageable by myself ..if you have a second person its easy to move bits of say 100kg on a dolly even over carpet with some new plywood.

I would imagine your mill in 4 bits ...base ,table,column and head all will be less than 100kg each

Whilst a certain tragedy for the chap it sounds like an accident was inevitable a 4ft tube sticking out the chuck unsupported and only in the chuck 1.5 inch

I have 2 of the w/c 2.2kw spindles one in a cnc miller and one as a spare just in case both with chinese inverters

the running one has been in use for 4 years probably 500 hours use and it still sounds sweet

best things i've ever bought for the price

Both bought from a chinese supplier on ebay but from portsmouth

Edited By Ian Parkin on 09/02/2017 15:44:04

Remove handle and fit motor instead and power with 24vdc via dpdt switch to change polarity to change direction

How or why?

its just a geared parvalux motor to drive it up or down

I have one ( RDG badged)

I've had it 8 years now and it works fine

I cant get anything bigger in my workshop ( stairs)

I've fitted dro's ( 3 axis) and power feed to x

power feed to the head lift

and a 2 hp induction motor and inverter and removed the gearbox

It does everything i want of it and is accurate and silentish

I wouldnt spend that sort of money on a mk1

I had a mk1 for 20 years it was worn out when i got it and it didnt get better with time

However I sold it easily to someone who just wanted a single phase lathe to do simple things and he was delighted at £500

I bought a very unused Mk1.5 for a £1000 ( with lots of tooling which on selling i got my £1000 back ) spent a lot on it to get it perfect and fitted dro's

I was at an auction last week and they had student 1800's and they only went for £400 ish

whilst these machines looked rough ( paintwork etc) the beds were in sound condition.

Before spending on your worn out example i'd look for a unworn one first

Were you there too Geoff?

all the students didnt make £500

all the excell optimums d420 didnt make 400

bridgeport with dro and slotting head made 450

the 2 modern emco cnc's made £4000

a tooling cabinet full of lathe tooling for 12 lathes only made £180

P.S  a dealer already has one of each lathes on ebay

Edited By Ian Parkin on 26/01/2017 11:53:51

Alan I know that just saying and I just sometimes wonder what my wife and daughters will do with my workshop when the GR arrives

I went to an auction yesterday that had a lot of machines and tooling like the listing and that listing would have been lucky to clear £2000 if it was at the auction i attended

Heres a link to a public auction next Tuesday some interesting stuff and will be as cheap as it gets

http://www.ewbauctions.co.uk/downloads/catalogue.pdf

Edited By Ian Parkin on 20/01/2017 13:02:26

The worlds most dangerous roads?

What does a emc filter do in practice?

And what problems will the lack of it do to other equipment?

Well as requested i kept my replies to the 2 sizes you mentioned but I have all systems and sizes from er11 to er50...having said that in the larger sizes only the large collets.I find the smaller sizes easier to use but as i said there's not much to choose between er25/32 just the max size to be able to hold I cant imagine there's any difference other than a slight cost advantage to er25 but the first time you want to hold 17mm + you will then have to step up to er32