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Member postings for Curtis Rutter

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

Thread: What Did You Do Today (2017)
06/04/2017 22:14:11

Today I've been spending a backdated pay rise 😊 Goodies include 3 axis DRO for lathe, Mitutoyo Digital Caliper and a few other measuring tools and some of the sundries for the lathe.

Thread: Stirling engine
04/04/2017 12:12:15

There's lots of differing techniques on YouTube.

Thread: Metal cutting Mitre saw
02/04/2017 12:36:34

I've got this one which I used mainly for building my workshop bench out of wood but I've cut a couple of pieces of hollow square bar and angle plate albeit very thin and they came out fine

**LINK**

Edited By Curtis Rutter on 02/04/2017 12:37:18

Edited By Curtis Rutter on 02/04/2017 12:37:55

Thread: Tool identification?
02/04/2017 12:20:46

What's this tool called? Is there any other tool suitable for use on the lathe to make large grooves off centre where you can't bore?img_1215.jpeg

Thread: Poor cutting
01/04/2017 15:16:17

I will most certainly be keeping it, at the moment I'm just creating swarf and practising techniques anyhow

Thread: Anyone near Lincoln UK
31/03/2017 17:19:06

What part of Bedfordshire Bob?

Thread: Poor cutting
31/03/2017 11:59:07

Sooooooooo...... Problem solved embarrassed

After trying a few different things, ordered a normal hss tool piece, tried other metals, mild steel, aluminium, and another piece of brass was still getting the same results so decided to change belt speeds. After changing the speed to the slower end it then dawned on me..... the competent electrician that wired up my lathe has wired the switch the wrong way round, I didn't notice at higher speed but I'd been using it in reverse, thankfully I was only taking light cuts. Flipped the switch and started again and voila! It's a pleasure to use, the tangential tool cuts the brass like a hot knife through butter as does the HSS tool bit I bought.

We all were beginners at some point embarrassed

This is the same piece of brassimg_1214.jpg

Edited By Curtis Rutter on 31/03/2017 12:04:35

Edited By Curtis Rutter on 31/03/2017 12:05:28

Edited By Curtis Rutter on 31/03/2017 12:06:26

Thread: What to buy next??
30/03/2017 08:28:33

Do you have a link to your band saw?

29/03/2017 17:54:31

Cheers all, will begin the hunt for a 4 jaw and DTI, Know I'm going to need a drill chuck pretty soon too.

29/03/2017 17:07:06

Have got some hss too 😊

Edited By Curtis Rutter on 29/03/2017 17:07:44

29/03/2017 17:00:55

So I got very little in the way of tooling with my lathe (myford ML7) when I purchased it and was wondering what would be the best piece of equipment to buy next?

All I have at the moment is a 3 jaw Pratt & Burnerd chuck, Quick change toolpost with tangential toolholder and a bench grinder.

My first thoughts are either a collet set or some tailstock tooling but if anyone has some better suggestions for me to spend some of my money then let me know!

Thread: Poor cutting
21/03/2017 23:08:15

Have pm'd you David

21/03/2017 22:41:40
Posted by David Standing 1 on 21/03/2017 21:37:59:

So here's an even more off the wall suggestion - is the tool holder contacting the brass?!

It's definitely not I'm paranoid about that! I'm located in Ware, Hertfordshire, UK

21/03/2017 22:19:32

So to answer some of the points raised....in regards to some of the markings, the initial facing cuts were very light and the material had some rough saw marks on. The outer marks were caused by me attempting to turning across some of the length and not getting that right either! The tool was never dragged across the face after the spindle had stopped, I've always moved the tool away from the workpiece before turning off the lathe. Will check out the post ref angles John, Ta.

21/03/2017 16:14:59
Posted by old Al on 21/03/2017 16:06:46:

Because brass is so easy to machine, we gwt lazy and attack it with whatever tool is set up in the lathe at the time.

Tools that cut brass do not need top rake and to get a better finish, a rounded tool is prefered. Try sticking a bit of mild steel in the chuck and repeating what you have done on brass.

If you are on an ML7 use top speed and if you are on a super 7, one down from top speed would give you a good start. assuming your lathe is bolted down

ML7 it is, will get hold of some mild steel and attemp that

21/03/2017 16:13:46
Posted by Andrew Johnston on 21/03/2017 16:06:53:

CZ108 is a cold forming brass, usually supplied in sheet form rather than bar. It can be machined, but with slow speeds and light feeds. The colour of the bar seems all wrong for brass?

Bin it and get some CZ121; it machines beautifully, hard to mess it up!

Andrew

The colouring is due to the lighting in my workshop, I assure you it's brass in colour

21/03/2017 15:54:12

The speed I'm trying to work out, excuse my ignorance but I'm still new! But this is the belt configuration. Diameter of brass is 40mm and I believe it's cz108img_1197.jpgThe cutting tool image.jpg

21/03/2017 15:28:33

img_1196.jpgSo after finally getting the lathe set up accurately I got a chance to make first cuts on some brass I had but it's coming out like so when facing

 

 

Edited By Curtis Rutter on 21/03/2017 15:30:32

Edited By Curtis Rutter on 21/03/2017 15:31:05

Thread: Are we the last generation.?
08/03/2017 15:33:03

I'm not the youngest chick in the roost, however at 30 I often feel like it when I've been to exhibitions or popped along to the local club and or at the college class I'm currently undertaking. Still new to the world of engineering and model making but I'm thoroughly enjoying the challenges and the chance to de-stress on my days off (apart from when I fluff it up!)

Thread: Slip Guages, and Setting a Quick Change Tool Post to Centre Height
27/02/2017 09:09:31

For setting centre height I've always just measured up against dead centre on the tailstock (as long as the lathe has been set up accurately) only takes a few seconds each time and has always been spot on.

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