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Member postings for Nick Welburn

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

Thread: Choosing a mini mill
10/03/2021 20:26:31

Well after as many glowing reviews a new Sieg sx2 in on the way. Anyone want to buy a mini vertical slide one careful owner

08/03/2021 22:04:20

I’ll have a look round but saving a few quid more and the sx2 seems wise.

08/03/2021 21:53:32

Hi Pete,

The problem with the z slide is twofold.
Firstly the effect of play in the slides and the z bracket.
Secondly it’s too bloomin small to be of any real use. You can’t even get a full pass over a 10v sole plate on it.
You can roughly mill something and with a follow with wet and dry get some thing workable. But in the end I threw the cylinder in the 4 jaw and cut it down that way to much better effect.

08/03/2021 21:20:48

I have no view on new or used. I’ll check out arc

08/03/2021 20:50:10

I’ve tried other options. A vertical drill fitting for the dremel, and a z slide on the lathe for milling.
these have been broadly unsuccessful. I think I may treat myself to a mini mill.
I’m after something of similar quality to my Amadeal lathe - that’s fine for my model making and home engineering.
Say a 5-600 budget can I get anything worth having?

Thread: Beginner and a 10v
10/02/2021 21:44:52

After the brief saga of getting the 4 jaw mounted. Tonight I mounted the standard up in the Chuck set for a really light facing cut. 300rpm or so.

Snapped the leg clean off on first touch! I’m slightly astonished as I’d already faced the feet and I assume that would be a greater lateral load!

Ive locktited it’s. Wonder if that’ll hold up to machining.

I can’t quite envision how else to hold it bar the feet. Especially for the boring operation. A feel a glass of beer and a think are in order.

Thread: Back once again with the idiot questions...
09/02/2021 22:28:54

Ok 200rpm it was. Feels weird the lathe almost stops on contact then winds back up and surely enough two clean cuts and we are almost there. One last pass and we are golden!

thanks again for all the advice. I’ve learned so much on this forum. The satisfaction of sorting this when it first registered was great.

07/02/2021 16:38:53

I’m using and HSS cutter. At about 800rpm.
this shape

**LINK**

and we have these to choose from:

**LINK**

any advice would be muchly appreciated!

07/02/2021 16:04:31

Hi there. No need to drill it, it has suitable front mount holes. It’s just getting the Chuck to register nicely. It sits on but doesn’t go home yet. I am quite astonished at how hard It is to machine. It’s just doesn’t seem to respond to the cutter. It’s taken maybe two hours turning to increase the diameter by about a 1.5mm

06/02/2021 17:47:09

Well I’ve had a play. The Chuck is made of something really hard. I’ve made some impact but not much. Are my HSS bits the right stuff for this job? I’ve been making some impact but not much !

31/01/2021 21:34:13

Cool. I’ve already got the holes in the spindle and chuck just needs a mount up for the cut of the register

31/01/2021 19:50:29

Perhaps better would be to make some unthreaded m8 shanks with a m6 clear hole that the m6’s can go into.

31/01/2021 19:48:20
Posted by not done it yet on 31/01/2021 18:47:24:

Basically as I see it the absolute location is not paramount (it’s a 4 jaw) but it needs to sit well on the spindle.

Do you want to risk an unbalanced chuck revolving at 2000rpm? I wouldn’t.

Edited By not done it yet on 31/01/2021 18:47:48

I’m maybe not understanding how this locates then. By understanding is that the prime location of the Chuck is on the centre bore. Assuming I can achieve the bore from 70mm to 72mm then it should sit as per the 3 jaw.
The bolts are then to hold it in place as opposed to locating it? Ergo the Chuck should be stable?

my thinking is that whatever I have mounted to it (which would be by definition unbalanced as it has a no circular bit of stock in it)

Does my logic make sense? Or are the bolts doing the locating and the bore just helps the initial location? In which case my m6 bolts in m8 clear holes will be an issue.

31/01/2021 18:26:12

The spindle itself is not threaded. It has m8 clear holes.

31/01/2021 18:25:22
Posted by Stuart Smith 5 on 31/01/2021 15:40:23:

My chuck uses threaded studs and nuts, not bolts. (The threaded holes in the chuck don’t go through.).

Is the one you have bought like that?

Stuart

My 3 jaw is help on with m8 nuts and threaded studs.
The 4 jaw has m6 bolts.

I’m pretty confident I can bore it out 1mm and it’ll bolt up. Basically as I see it the absolute location is not paramount (it’s a 4 jaw) but it needs to sit well on the spindle.

30/01/2021 20:31:30

Hmm. Ok it seems mine is 70mm centre bore and an 84mm PCD.

stupidly as Amadeal was out of stock I bought from EBay and the advert only mentions 100mm and no centre bore / pcd details.

ive just attached the Chuck to the spindle backwards using the jaws. I’ll need to find some slightly longer cap head Allen bolts. But it feels like a goer.

30/01/2021 18:25:52

I’ve got a 4 jaw Chuck 100mm Chuck I bought on eBay for my amadeal cj18 lathe.

I tried to fit it up this afternoon for the next stage of my 10v. It’s the same size as the 3 jaw but the internal centre bore is different?
we are talking circa 69mm in the 4 jaw and 72/73 mm in the 3 jaw.

is there a different standard? Would the men of this forum just have mounted it up and made it 72mm?

yours confused but happy of the garage.

Thread: Reamers
26/01/2021 23:00:51

Slightly overwhelmed with the responses here. I’ve order a good set of drills from Tracy tools. I now understand reamers and what sort I need. It seems every question has a sub question to it!

Thanks again for the guidance. I’m well through making the flywheel now and loving the intellectual and physical challenges that machine work brings.

25/01/2021 22:13:19

Cheers guys. I feel I’m learning a heck of a lot on this forum.

Drills ordered, we’ll see about reamers when the time comes.

25/01/2021 21:42:16

I’m thinking about this set as a solid starter?

**LINK**

I assume I need some sort of a handle as well perhaps like a for a tap?

But you refer to d-bits? Would a decent set like this and a spotting drill get me in the manor?
**LINK**

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