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Member postings for John Hall 7

Here is a list of all the postings John Hall 7 has made in our forums. Click on a thread name to jump to the thread.

Thread: Another ER32 chuck question..
05/06/2020 15:58:20

Where did you buy them from Vic?...and are they accurate?


Thread: marking out pcd's
04/06/2020 20:26:36

The pointed grub screw method works really well for lots of applications....keep it simple..👍

Thread: Another ER32 chuck question..
04/06/2020 10:39:39

That’s exactly what I’m doing Thor...

im heading that way Vic...I just fancied the morse tapered one for ease of use, .. up finding a good one is not easy..very few uk suppliers have them, and those that do are quite get what you pay for..

Thread: Non standard taps - what are they ?
04/06/2020 07:19:53

We’re they expensive?

Thread: Another ER32 chuck question..
03/06/2020 21:50:46

I’ve just purchased a MT4-ER32 chuck for my Warco 250 lathe’s got a 3thou runout on the collet taper which I find pretty poor for a tool designed for accurate work..

.The morse taper in the lathe spindle has almost no runout and the morse taper on the chuck body where it sticks out from the spindle reads the same.....the outer body of the chuck reads the same as the collet taper..3thou runout...

It’s being returned to the seller,

my question is...Where can I buy one that is guaranteed to be accurate?


Thread: Soldering Iron
03/06/2020 21:30:51

Have a look on YouTube at the TS 100 12v soldering iron...something else...👍

Thread: Cross slide adjustment?
03/06/2020 21:24:08

Just Google ..cross slide backlash....there’s loads of info, plus lots of helpful stuff on Youtube..

Good luck..

Thread: ER32 Collet Chuck advise please.
03/06/2020 21:02:45

I can’t find a reply from you regarding checking the internal taper of the chuck...don’t be fooled into thinking that if the external body runout is ok, that the rest will be ok too...not so....I’m having the same problem with a MT4-ER32 chuck on my Warco lathe...measuring the morse taper of the chuck where it sticks out from the lathe spindle it’s fine, but measuring the internal chuck taper it’s 3 thou out...and the rest of the body is too..

considering collet chucks are designed for accurate work, you’d think they’ve made with some sort of accuracy in the first place...

if you’re not getting a good reading at the chuck taper there’s no point checking the nut or collets, as it can only get worse not need to work forwards from the beginning, starting at the lathe spindle, ...backplate face...etc....Good luck

03/06/2020 10:01:02

I know this is late in the day, but I’ve just watch a YouTube vid dealing with this subject...the problem turned out to be the collet chuck nut...different ones gave completely different readings..

Thread: Gibs, adjustment screws and brass
09/05/2020 17:24:28

I have a Warco 250v-f and have found the top slide gib is both quite thin between the dovetail, and also quite short top to bottom.. it therefore  has the same problem as mentioned earlier, of tilting when the adjustment screws are tightened...This sloppiness has also caused the indents on the gib not to be drilled parallel with the edges, they line up diagonally along the length of the gib...explaining why I had problems adjusting it

the cross slide gib is absolutely fine, and is a good fit sideways and up and down, and doesn’t have the tilting problem..

im going to make a new gib for the top slide out of thicker wider brass...hopefully that should cure the problem...

PS...anyone buying a new..or old Warco...I would suggest you remove the gearbox and apron assembly and give them a thorough clean out with white spirits...mine had way to much cast iron grit in the bottom..

im also thinking of fitting an extra drain plug in the bottom of the gearbox as the one on the side is obviously higher than the bottom of the box, meaning it doesn’t drain fully...magnets are also being fitted in the plugs for good measure.

stay safe...

Edited By John Hall 7 on 09/05/2020 17:25:29

Edited By John Hall 7 on 09/05/2020 17:26:03

Edited By John Hall 7 on 09/05/2020 17:26:51

Edited By John Hall 7 on 09/05/2020 17:27:42

Edited By John Hall 7 on 09/05/2020 17:28:25

Thread: Strip Down to Clean New Warco 250V
21/04/2020 18:29:53

I’ve removed the chuck guard and clamped a 125mm long rod to the end of it vertically with a red knob screwed on the end...It’s used as an extra safety stop button, and is easier to access than the one on top....

All it needs is a quick tap backwards to operate the off well...simple to do..👍

Thread: Lathe tool materiall chart
31/12/2019 10:57:02

Thanks guys...👍

31/12/2019 10:52:09

H5 is Eclipse designation for 5% Cobalt used in their lathe tools ..

30/12/2019 17:39:51

Hi, has anyone got a chart explaining the hardness / material used on lathe tools...

Ie....H5, and M2


Thread: Warco WM 250 problem?
30/12/2019 17:24:19

The drip tray has a void underneath it...I think this may be to fit flush on the Warco cabinets....I cut a piece of plywood slightly thicker than the void to fill the whole space...thus lifting the tray slightly off the bench I made...

if you’ve mounted the lathe directly on top of the tray without anything between the bench and tray it won’t be solid..

Thread: Stanley Blade Lathe Finishing Tool
30/12/2019 17:02:44

Have a look at this...


Thread: Warco WM250 Chuck maximum size
29/07/2019 10:33:23

Thanks guys...

28/07/2019 14:04:58

Hi, I have a Warco 250 lathe which comes fitted with a 5”..125mm chuck..A friend has a nice Pratt 6” chuck that he no longer uses....would this be too big for my Warco?

Thread: CROBALT...Lathe tools
10/05/2019 18:50:23

.Hi, has anyone used Crobalt (yes Crobalt..not Cobalt) lathe tools?

ive just watched a vid on YouTube by Eccentricengineer...makers of the Diamond Tool Holder..turning Stainless and Cast Iron...using Crobalt alloy tool bits..

very interesting...

Anyone used Crobalt lathe tools?...

cheers John

Thread: Jacobs arbor marking
27/02/2019 19:22:06

RDG sell these together....

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