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Member postings for Philip Powell

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

Thread: Simple drawing package
19/02/2020 20:43:56

Google SketchUp is another option, I believe there is a "professional" pay for version but the basic one is free to use. Not used it myself but my Son enjoys using it.


Thread: Cutting fluid
10/02/2020 18:13:34
Posted by not done it yet on 10/02/2020 17:02:27:

Most people with hobby lathes cut dry? If using neat cutting fluids, the biggest problem might be smoke?

Only if you don't dilute it enough.

Modern soluble cutting oils don't go off like the good old stuff that could make a real pong if left too long.


Edited By Philip Powell on 10/02/2020 18:14:42

Thread: Win10
28/01/2020 21:34:28
Posted by Emgee on 28/01/2020 19:37:11:
Posted by Mike Poole on 28/01/2020 18:03:32:

Anyone still on Windows 3.11 ?


I'm still using DOS for machine programming so a bit before Win 3.11


Depends on the version of MS/DOS as with win 3.11 you had to install DOS first then windows, they both existed together.


Thread: Help choosing my lathe
22/01/2020 20:58:58

Mick. Have you considered if the leadscrew is different in metric or imperial machines? You might find one has a more useful range of thread pitches or tpi than the other.

When I did my apprenticeship in 1975 to 1979 everything was imperial. I soon left engineering to work in IT and returned to engineering as a machinist in 2010, what a shock, everything had gone metric, drawings are third angle projection, machines are nearly all CNC or if manual have a DRO. But I much prefer to work in metric, everything is much more logical no messing about with fractions or number/letter drills etc. Oops! Opened a can of worms there.


Thread: What Vice should I buy (2019)
11/01/2020 23:39:24

Ditto for the Arc versatile vice with swivel base. I've got the 4" version. Good clone of a Kurt, excellent value for money and holds work accurately and securely. The swivel base has been used once in three years, makes a good cabinet weight most of the time. I use a Thor number 2 if anything needs bashing down.


Thread: Slip gauges
14/12/2019 19:24:40

At work as well as a very decent set of steel metric slips we have an old and I believe fire damaged imperial set with a few missing slips. The metric set we're not allowed to take into the machine shop, but the imperial set are used for packing/parallels, vey useful indeed when you need a packing piece a certain height and a multitude of other uses (not the metric set though).


Thread: BSP vs NPT vs "PT"
10/12/2019 22:12:18

The "G" denotes Gas thread, interchangeable with BSPP


Thread: Wanted help with machining small ali components
01/12/2019 08:04:16


As a model flyer myself I would like to help. But, cam shapes? It sounds like you need help from somebody with a CNC machine, something that not many amateurs have access to. Have you contacted any of your local machine shops? Sorry I can't be much help but I think what you are looking for is very specialist matching work, cams are not an everyday thing.


Thread: identify
20/10/2019 21:56:45

Tricky. Not all stainless is non magnetic. Silver steel is magnetic. Silver steel is ground to a close tolerance. Most stainless is drawn. Most stainless cannot be heat treated. Silver steel can be heat treated. Mild steel is magnetic. Mild steel cannot be heat treated.

Best to buy stock from a reputable supplier and keep separate.

Sorry no simple answer.


Thread: Digital inclinometers
18/08/2019 07:59:10

I use my phone...


Thread: Metal Cutting Power Saw
17/08/2019 21:04:56

I run my Femi dry as per instructions, only two speeds so I just run on the slowest speed all the time.


Thread: What 3 Words
15/08/2019 19:17:00

I think you will find it much easier to relay 3 words for your location than longitude and latitude, it much more accurate too by dividing up the world into 3 metre squares. The emergency services have adopted it as well. Check it out fantastically simple idea.


Thread: Metal Cutting Power Saw
15/08/2019 15:34:20

Ron, I've not cut huge bars in my Femi, 40mm dia is about the biggest so far. I did cut some 125 X 16 ali plate the other day, too wide to fit in the the normal way so I stood it up vertically and put it in the vice holding on the 15mm thickness if that makes sense, cut perfectly. Nice vice too.

When I get a round tuit I'm going to make a table like above in JohnF's picture, should be quite easy and useful.


15/08/2019 10:27:15
Posted by Ron Laden on 15/08/2019 08:41:35:

Still havnt got myself a saw but I think I am going to order a Femi SN105XL, its the basic model but has good capacity. I see from a video that it is manual i.e. the blade is pulled down through the cut, would anyone know if this type of bandsaw can be left to gravity feed..?

Ron, not on my little Femi, you have to pull down to make the cut, expensive but worth it. My came with a free spare blade and delivery to soften the blow. Great little saw, I keep mine under the bench.


Thread: 316 Stainless
04/08/2019 20:01:50
Posted by Dave Harding 1 on 04/08/2019 17:49:51:

I give it up as a bad job no matter what speed I run it at the carbides end up glowing red and I struggle to remove any material. I binned it and turned it out of mild steel.

Edited By Dave Harding 1 on 04/08/2019 17:50:28

I doesn't sound like you were trying to machine 316 then.


Thread: Collet Chucks out of true
04/08/2019 19:57:58

As Pete says a decent collet chuck should be very repeatable. In my experience they are very accurate (useally) they will hold work firmly without damaging the surface and with care thin walled components can be held.


Thread: 316 Stainless
04/08/2019 10:12:03

Oh and I forgot to mention in the above post when machining 316 at home (offcuts from the scrap bin) I don't have flood coolant I just drip or brush it on, again it will not harden.


04/08/2019 10:08:57

I machine 316L all the time at work. I have never had problems with the material hardening, we use standard indexable tips and for some special cases HSS tools. Flood coolant is is used except when tapping or reaming then we use Rocol. The only thing we do different is keep the speed and feed down and for tapped holes drill a little bigger than the standard drill size.

I sometimes take very light cuts with no problems, if you want a decent finish coolant needs to be used. That said 316L is a very nice material to work with and it's easy to get a very good surface finish.

It's only when we machine exotic metals do we problems with work hardening.


Thread: Collet Chucks out of true
04/08/2019 09:57:53

Iain. Have you tried removing the collet and measuring the runout on the inside face of the chuck? Within reason it doesn't matter if the outside of the chuck is not true. This should determine if it's the chuck or collets that's causing the problem.

I presume you have a ER32 church not a ER2?


Thread: An old Shaper found in Phuket Town
22/05/2019 19:38:45

I too worked at Cincinatti in Biggleswade , late 70's. I finished off my Apprenticeship there working in the machine shop. I was on the turning section running a Churchill copy lathe churning out machine spindles from forged billets. Then worked on a Cincinnati CNC machine centre programmed with punched tape.

In another of the machine shops there was the mother of all planers churning out machine bases.

It's a housing estate now.


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