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Member postings for Ian Parkin

Here is a list of all the postings Ian Parkin has made in our forums. Click on a thread name to jump to the thread.

Thread: Gas Strut for Mill
20/05/2020 18:08:00

When i installed my wm18 mill i removed the gas strut and couldn’t begin to compress it

seems to work ok on the mill

sorry not much help as to what rating you need

Thread: Using large dies
19/05/2020 14:40:01

John f

I do screwcut on the lathe to size but i run the hex nut dies down after just to make sure they are the right fit

i make chuck adapters for woodworking lathes and its surprising how many dont fit even though I’ve used my spindle or sample threads or nuts so I’ve found that running the tap/die down my cut thread makes them work.

the other day i had a chap send me a commercial 1 3/8 6tpi whit adapter that would not go on his lathe he sent it to me it wouldn’t go on my dummy spindle but running a tap down it cleaned it up..didn’t seem to remove any metal..but afterwards it went on my spindle and the customer was happy.

My original post was about someone agin on a woodwork forum who wanted a die holder 3 1/8” dia to use his round split die to cut a male 1.5 “ 6tpi on a steel bar... I dont think that would be possible at all...but ill stand corrected if someone says they can do it...

18/05/2020 20:27:03

Yes i meant a round split die so it could be opened up a little to start it off

the large dies i have are all hex nut type so i generally use a big pair of stiltsons to run them down

I just cant imagine trying to do a 6tpi whit over 1” from scratch or even trying to tap with a set of 3 taps

18/05/2020 19:19:40

I cut a lot of large whitworth /unc threads usually on the lathe and then run a hex nut die down them to clean them up.

Sometimes its hard work just cleaning the thread up removing a small amount of material.

On a woodworking forum someone has a 1.5inch 6tpi split die and they are wanting to cut threads just with this.

is it at all possible on steel?

what would the forum say is the biggest thread that you can cut with a die from scratch on sized steel?

Thread: Used Lathe Pinnacle PL1340C Gap Bed
16/05/2020 17:37:23

Stuart

so both phases are 180 degrees apart?

or in phase?

I can understand that both are at 240v relative to neutral

and 2x 240 =480 live to live but surely they will still be in phase

Thread: Identify plastic glue
16/05/2020 13:37:03

I would have thought that a standard sanitary silicone rubber sealer would work perfectly and come apart again if need be

araldite might be a problem with coming apart easily

Evo do their “sticks like s*** “ adhesive which sticks almost anything and is waterproof but again difficult removing it at a later date

Thread: Used Lathe Pinnacle PL1340C Gap Bed
16/05/2020 10:45:28

So was Stuarts post a typo about 180 degrees and 500v between phases rather than 415v ?

16/05/2020 08:48:30
Posted by Stuart Smith 5 on 15/05/2020 09:04:32:

What you will have is as you say, a transformer fed from a single phase (2 wire) HV overhead line.

A common neutral but with 2 single phase 230v ( but could be up to 253v ) live supplies 180 degrees apart. You would expect somewhere in the range 440 to 500 volts between them.

Where does this supply come from ?

how do you get 2 phases 180 degrees apart?

15/05/2020 09:56:50

Robert have you ascertained yet if the lathe is 2 speed?

14/05/2020 14:44:47

I thought earlier you said you had 3 phase?

2 speed motors are fussy things...you can probably wire it for 240v 3 phase then put a VFD on it but then it will be single speed

or replace the motor with a single speed 3 hp motor 3 phase with vfd or single phase.

but if you have 3 phase in your workshop leave it as is then all those speeds to choose from.

you select the speed range 1 or 2 with a switch

Edited By Ian Parkin on 14/05/2020 14:51:50

14/05/2020 14:32:51

It sounds ok to me ....I’d consider my lathe to be quite quiet in use but on occasion when i sent video to people it sounds loud and rough

its got a 2 speed motor on too

you will struggle with vfd if you needed to

Thread: Archived bbc programmes available now
13/05/2020 20:50:53

Just been watching some bbc programmes from the 1950s that have appeared on bbc iPlayer

one series called “eye to eye “ has a comparison between London and New York in 1957 narrated and music by Larry Adler

i did a double take as the riff that LA was playing was smoke on the water surely written in the 70s though Richie Blackmore said it was from an inversion of Beethoven’s 5th

anyway good viewing in these lockdown times

Thread: Used Lathe Pinnacle PL1340C Gap Bed
13/05/2020 16:27:12

Robert sounds good

i had sent you a pm with my number if you still need me

Ian

Thread: Cheese grater strip/band
13/05/2020 15:08:24

Bill

you ARE on the ball thats exactly what i need

how did you find that?

Ian

13/05/2020 15:06:33

Here’s a pic of the roll in question

it doesn’t need to be wound round a straight stip of it would suffice 504f8a58-64de-40b8-9d66-4feb683f0658.jpeg

Thread: Used Lathe Pinnacle PL1340C Gap Bed
13/05/2020 14:50:45

Yes i can go along in the morning with video camera in hand if the seller is ok to dem it

Ian

Thread: Tig Welder recommendation
13/05/2020 13:55:37

Bob

i messed about with cheap inverter welders and scratch start tigs but after a while i spent £400 on a esab buddy tig

Its light weight if you need portable HF start and comes with everything you need to do MMA or tig (DC)

so no alloy welding

Best of all it makes me smile everytime i use it which i always feel makes a tool great

also you will get your money back almost when/if you sell it

Thread: Used Lathe Pinnacle PL1340C Gap Bed
13/05/2020 13:47:22

I dont think it looks too bad in the photos about just what i'd expect a working machine to look like

he could have cleaned it up more perhaps

if you can get that for £1200 or so i'd go for it...its abig lathe for little money

I've had colchesters for 35 years now and never needed a part that wasnt a standard part or electrical .

lead screws i've made and nuts too

How many industrial stanfdard machine needs parts that the owner couldnt make?

Get your mate to look at it working if its good buy it

I'm not too far away if you need some eyes on it

Thread: Sort of a Straw Poll
12/05/2020 19:41:00

Les

i worry about this every night and I’m only 60

what my wife would do with my workshops and all my machinery that i have spent 40 years accumulating

Thread: Cheese grater strip/band
12/05/2020 19:37:36

Brian

the prongs are too long for this application

ill try and get a photo of one tommorow off the press.

the zester type of strip is thin stainless with a grid of square punching from behind making little pyramids of sharp points which grab the roll

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