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Member postings for Stuart Bridger

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

Thread: Under size rod for bearings
14/02/2021 09:45:25

Maybe you are over thinking this. Just make the bearings a good fit on the shaft leave a bit of play in the bearing seats. Install the crankshaft and just nip up the bearings with a good running fit.

Thread: The Workshop Progress Thread 2021
14/02/2021 09:13:31

UPT nominally completed.

Just need to make up custom washers so the Kipp handles sit nicer.

upt0i3a5730_small.jpg

Thread: Airbrushing Humbrol and Enamels
27/01/2021 14:22:35

I have done a bit of airbrushing with Humbrol and use their genuine thinners. Seems short sighted to risk the finish of your model for the small cost of the correct product.

Thread: Shipping delays and costs
23/01/2021 09:57:02

Friend of mine in the shipping business has just made the following comments on the China container situation.

"We are estimating sometime between June and August for things to settle down..
Up to around August last year rates were $1500-$1700 and now $12-$14k port depending. Also have Pearl season surcharge of $900 and port congestion fees of $350-$550 line depending on top.
I expect the “new normal” rate will settle somewhere around the $3500-$5000 mark when it does eventually settle down."

Thread: Running a 3phase at home
23/01/2021 08:50:35

Summarising posts above, you have three options

1) get true three phase installed by your utility company
+ Lathe just plugs in
- potentially very expensive
2) Install a rotary converter
+ Lathe just plugs in
- Noisy and takes up space
3) Convert the lathe to VFD
+ Low cost and adds variable speed with additional flexibility
- Some work needed to integrate the VFD and change control circuits to work with the VFD
That said there are preconfigured packages from people like Newton Tesla
- Potential issue if your motor can't be reconfigured for delta (240V) operation.

FWIW I went for option 3 with my Colchester Chipmaster, and got great help from Inverter Drive Supermarket in specifying exactly what was needed. They have a useful "how to" page Link

Thread: Coronavirus death stats
14/01/2021 17:42:34

Best thing is not to look at the death figures they can always and are being argued over. Cumulative figures are only of interest to journalists.
The real issue is the number of patients being hospitalised and the capacity to treat.
The scary thing is that during the first wave, I knew of very few cases. but currently I am hearing about a lot of people locally who have tested positive, a number in hospital and sadly some deaths

Thread: Manual threading on the lathe - problems
13/01/2021 17:56:33

I don't recall having any issues with my 10V piston rod.
Floating Tailstock die holder and decent quality sharp dies are the answer as other have said.
I hadn't discovered Trefolex when i built my 10V but that has been a revelation when threading since.

Thread: The Repair Shop is getting to me...
11/01/2021 17:13:52

The trouble with any TV documentary style programme is that it will never been enough for those with in-depth knowledge of the subject. But then why are experts watching something they already know about? It is interesting to see which skills are focused on and which are glossed over though. Suzie Fletcher's saddlery skills seem to get a lot of attention. Perhaps the producers joust don't think machining is photogenic enough. Likewise we see more of cleaning of clock components than reassembly. If it inspires any to take up a craft that is good for me.

Thread: Where do the parcels go ?
10/01/2021 08:59:23

Some 20+ years ago, I was involved in supplying a new computer system to a parcels company who shall be nameless. The servers had to be shipped to each parcel depot and quite understandably they wanted to use their own network for the delivery. Their IT department insisted that we used a special service designed for tracking specific hazardous materials rather than the standard service to ensure the kit got delivered. We were somewhat bemused by this.

Thread: The Repair Shop is getting to me...
09/01/2021 19:35:44

I enjoy it. There are some fantastic skills on show. I wish that they would state how many hours work went into each project though. Also if it encourages more repair rather than scrap and replace, that must be good.

Thread: Milton Keynes Metals?
21/12/2020 12:05:51

ISO 10 slideway oil?? That sounds very low viscosity for the task?
Most suppliers list ISO 32 as the lowest viscosity with tackifying agents added that help the oils to stick to non vertical surfaces.

Thread: Contacting Hemingway?
08/12/2020 12:09:03

I had excellent service from Hemingway back in April

Thread: New scam to beware of
02/12/2020 16:22:34

Washing machine warranty seems to be latest one . London and General insurance saying warranty has expired.
I asked them for make, model, serial number and date of warranty expiry. They dropped the call at that point

Thread: co-axial indicators
01/12/2020 10:32:09

I have an unbranded unit and it does get used fairly frequently. The headroom point raised by many is very valid.
I have a Warco VMC and use an R8 collet to get the indicator as close to the spindle as possible.

Thread: Taper Turning attachment - what a revelation
28/11/2020 18:48:51

Yes it does come with a different cross slide screw, which is longer and and has a nut at the rear of the TTA. Normal cross slide operation is available without any changes. The only real difference is the the nut that secures the screw to the handwheel is omitted when installing the TTA.

Thread: Thread cutting problem
28/11/2020 17:57:52
Posted by old mart on 28/11/2020 17:46:08:

If the die is not split, it is only good for cleaning up an existing thread. If the die is split, the die holder has to have a big enough bore to allow the die to be expanded by the central screw, for the first pass. Then the first screw is backed off a bit and the other two screws done up lightly on the die for the second pass. The quality of dies varies from excellent to christmas cracker, you may have the latter and could be trying to accomplish the impossible.

With respect, I have to disagree, I have a quality set of metric dies that are not split and are toleranced (6g). They cut a an excellent thread.

28/11/2020 17:42:28

I would also add that in my experience the lead in chamfer is not required and can make things worse as it weakens the first few threads and makes it more likely to strip. There is already a chamfer on the die, which should be enough for a start.

28/11/2020 17:37:18

I have been through this, quality die and trefolex were the answer for me. Tailstock die holder should be fine. it does need a loose enough fit between the holder and Arbor to self align any slight offset of the die in the holder.

Thread: Taper Turning attachment - what a revelation
28/11/2020 17:21:49

A short time ago, I acquired a taper turning attachment for my Chipmaster. The cross slide screw/nut on my lathe was quite worn, it it was a good opportunity to not only add functionality, but to to eliminate that wear. It was installed, but never used in anger until today. I am making a Universal Pillar tool, which needs a taper cut to mount a drill chuck. Dialed in the taper and got a serious locking fit first go. So easy. Only challenge was that the taper slide is really stiff, but ran fine under power feed. I appreciate that such luxuries are not available to all lathe owners and I had to pay nearly half what I paid for the lathe for the attachment. But wow, what a useful piece of kit when needed.

Thread: Whitworth v UNC
17/11/2020 19:40:25

In the UK aircraft industry, unified threads were seen as the spawn of the devil. Purely due to the potential for mismatching resulting in dangerously reduced strength. All aircraft grade fasteners with unified threads had to be specifically marked with a symbol with three circles.

ags3-550x332.jpg

Edited By Stuart Bridger on 17/11/2020 19:48:02

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