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Member postings for John C

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

Thread: metal supplies
28/06/2020 11:08:09

Don't know if this was the name mentioned, but M-Machine metals have always been a very good source for me:

M-Machine-metals.co.uk

They are in Darlington but will post.

John

Thread: Help with lathe operation would be much appeciated.
23/06/2020 19:14:51

Brian,

Glad you have had offers of help. I am in N Yorks so not a million miles from you . I would be more that happy to drill your bolts, or even make some bespoke ones. I have an excuse to drive up to Newcastle so could collect if that suits.

All the best,

John

Thread: Boxford 280 spindle nose runout
23/06/2020 19:09:55

Hi Gav, I have a Boxford 10-20, or X10 as Boxford refer to them, but essentially the same as yours I believe. The bad news is that last night I clocked the runout on the face of the spindle, and it was as near zero as I could see with a 0.01mm clock. Which leads me to suspect that you have a problem with your spindle. I have adjusted my spindle bearings but have never taken the spindle out. Unfortunately I think that if you have a bent spindle you are never going to get good results, although I agree that bespoke back plates for each chuck, assembled repeatably each time, will be your next best solution. I would, however, suggest rigorous re measurement of that runout ensuring you are not picking up any tiny chips or dings.

ATB, John

Thread: North Yorkshire Logging In
23/06/2020 18:58:40

Hi Brian,

Where in N Yorks (only rough location) are you? I'm near Easingwold. Welcome!

Thread: 3D CAD software - what do you use?
18/05/2020 15:54:28

Fusion 360 (free for hobby use) and cura to slice for printing.

Thread: Sharpening Fine tooth slitting Saws
18/05/2020 08:37:07

Hi Pete, This thread may help solve your problem:

**LINK**

John

Thread: Sanitizer
18/03/2020 21:47:23

Wring = wrong!

18/03/2020 21:45:24

Assumption here - very dangerous! If the OP is thinking about sanitising due to the Corona virus, the current advice seems to be that good old fashioned soap is the best defence - something to do with the way soap interacts with the virus. If this assumption is wring, please ignore.

Thread: Ebay being clogged up by certain sellers
06/01/2020 21:16:42

Reply to Clive:

Yes Clive, I have paid these charges. Paying the VAT is understandable, paying the Post Office £8.00 'admin fee' less so! However, i weigh up the total cost and decide if the item is worth it - it may still be cheaper than buying locally. In the cases I have experienced the item is held at the post office that keeps your undelivered mail and the postie drops a card through your door. You proceed to the post office, hand over the cash (or card) and the item is yours.

John

Thread: Imperial Fasteners
20/12/2019 19:33:11

Try Spalding Fasteners www.spaldingfasteners.co.uk Wide range and great service.

No connection etc,

John

Thread: Another post for great service.
20/12/2019 16:31:11

I was after some small UNC grub screws and came upon Spalding Fasteners: www.spaldingfasteners.co.uk. Very reasonable prices, no minimum order and very fast delivery.

No connection, just a very satisfied customer. They have a great variety of items and may be worth a look.

John

Thread: 3D printer recommendations
23/11/2019 08:19:21

+1 for the Aldi printer, Cura software and Fusion 360 CAD.

Thread: Today's 'Live Chat' with TalkTalk
20/11/2019 18:42:59

Thread (continued) drift, but I got a Truecall unit free, gratis and for nothing through ( I think) Trading Standards. Takes few minutes to set up - they say you need an engineer but you don't - and once operational it requires human intervention to get a call to ring your phone ( press a number on your keypad). So all the robot diallers don't make it past the first fence. You can add your 'trusted numbers' to a list so they get straight through. I have to admit to being sceptical, but we have not had one scam call since I installed it. Gets my vote.

Thread: contact T Fletcher
21/03/2019 12:53:30

Duncan, PM sent.

John

Edited By John C on 21/03/2019 12:53:47

Thread: Angle checker
28/12/2018 18:58:00

Top left drawer of your cabinet next to the box of stuff you put for safe keeping,

That's where I found my tiny precision square that I was convinced I had lent out and forgotten about!

Thread: Brass purchase
23/12/2018 12:12:48

M Machine metals:

http://www.m-machine-metals.co.uk/metals_br_diameters.html

Thread: Cheap 3D printers
19/11/2018 17:05:09

I have several Aldi hand and power tools, all of which do 'what it says on the tin', but are not pretending to be high-end products. With that in mind, what would the forum think of this:

https://www.aldi.co.uk/balco-3d-printer-/p/086887240233900

John

Thread: Jones and Shipman 540
20/09/2018 09:14:30

I have a 540 which I run from a static phase converter. As the machine has a motor for the wheel and a motor for the hydraulics my understanding (which may well be wrong as evidenced by Marks post!) is that I couldn't use just one inverter, and that the switchgear could not be between the inverter(s) and the load. Hence the phase converter. I spoke to a very helpful gentleman at Transwave who suggested that I switch on the wheel before the hyd, and switch off in the reverse order.

Thread: Thread cutting with carbide inserts
30/07/2018 21:20:45
Posted by Neil Lickfold on 29/07/2018 12:38:55:
Posted by John C on 29/07/2018 10:00:56:

Nick L - please could you give details of your microswitch/ VFD set up? It sounds interesting.

John

So I have an album here, https://www.model-engineer.co.uk/albums/member_album.asp?a=48822

I have the microswitch on S1 one connection. So when the switch (normal closed) is opened, it stops only the forward direction of the motor. Reverse direction still works . I set the VFD to stop in about 0.3 seconds I think, maybe 0.1 seconds. When the switch opens, the motor stops, then I switch to reverse, wind back.and can take another cut. The microswitch is set on a movable stop to set it in the Z distance.

Will add more to the album when I thread cut next.

Neil

Edited By Neil Lickfold on 29/07/2018 12:47:03

Thanks Nick - will keep watching! John

29/07/2018 10:00:56

Nick L - please could you give details of your microswitch/ VFD set up? It sounds interesting.

John

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