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Member postings for Pete Rimmer

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

Thread: Dumb question from a none driver
05/09/2019 09:28:14
Posted by Steambuff on 02/09/2019 12:54:47:

Since you registered the car in your name you are the Keeper ....

But, since you gave your wife the car as a present .... She is now the owner!


Only until the tyres need air, the engine needs oil or the wiper blades need changing Dave :D

Thread: help with gear calculations
03/09/2019 00:30:31

I don't think Howard is suggesting that, he's saying that given the obvious wear in the handwheel pinion and the reported noisy headstock gears he's hoping for your sake that the screwcutting gearbox at least is in good condition so that you may have the full range of feeds and cutting pitches.

Thread: ACME thread identification question.
02/09/2019 14:00:47

Well yes I realise that it would take nothing more than a small adjustment in half depth or tip width and it IS very small but still there must be a drawing that says more than 7/16" ACME 2.5mm pitch LH. They specified the OD for the blank for rolling the thread on the imperial cross slide screw to 4 decimals.

02/09/2019 13:25:12

For a thread like that there must have been a factory drawing showing the departure from spec for thread cutting depth on both the nut and the screw although the screws were rolled which begs the question how did they roll an ACME thread at a non-standard pitch or why would they even do that when you could roll a trapezoidal thread on the non-standard diameter without having to have non-standard rolls made.

Somebody somewhere must have that drawing.

Thread: Dumb question from a none driver
02/09/2019 01:16:06
Posted by Paul Kemp on 01/09/2019 22:45:57:

Apparently this is a legal principle of insurance that you can't insure something against loss unless you are the legal owner and it is you that will suffer from a loss.


My wife's car that I bought new is registered in my name but my wife is the only driver and she has a fully comp policy on it. It was done like this because I bought it for her as a birthday surprise. The insurer knows this and is perfectly happy with it. I am the owner, she is the insured.

Thread: Binding leadscrew.
31/08/2019 15:03:35

I think that it's much more likely that one of the hangers are twisted. There's loads of ways you can check this but if tooling is minimal here's one way that needs just a good ruler.

Block up one end of the screw so you can remove the hanger without it drooping. Now measure from the screw to the machined face on the bed casting (allowing for any sloppy play at the other end) and compare that distance both ends. It should be the same. Do the same both ends until you find out which end holds the screw off-parallel to the bed. Now swap the hangers. If the problem swaps ends it's the hanger that's at fault. If not then it's the main bed casting.

Thread: Dumb question from a none driver
31/08/2019 13:53:23
Posted by Nicholas Farr on 31/08/2019 13:15:36:

Hi Pete, However, when the transfer is registered any tax against that reference number will become null and void.

Regards Nick.

Yep, and to put icing on the cake, the registered keeper gets the refund, not the person who paid.

My guess is the transfer was done online, the V5C will turn up in a few days and the son will be the properly registered keeper and the vehicle properly taxed. Most likely option since the alternative would require someone to relinquish the vehicle whilst retaining liability for any fines it might accrue.

31/08/2019 13:07:26
Posted by Dave Halford on 31/08/2019 12:12:17:

How was tax sorted out when it seems to be not registered correctly?

DVLA don't care where the money comes from, all they want is the reference number off the V5C (which the new keeper should not even have) and a payment from somewhere, and that the vehicle be insured. Doesn't have to be the owner or keeper that pays.

31/08/2019 12:07:36

I would not worry about the ownership issue, for a start you have evidence that you paid £700 for it so that's the perceived value from both your and the seller's perspective. That would satisfy the CAB. Secondly your messages showing that you bought the car, not your son. That makes you the owner and he (eventually) the registered keeper. This is actually a sensible way to do it since he'll be the user and responsible for it's usage plus any potential fines for driving, taxing or C&U offences etc but you remain the owner of the property.

The easiest way to transfer a vehicle is for the seller to do it online. It happens immediately and you go away with the new keeper slip so you can then tax the vehicle. It's possible the seller did this but they shouldn't have given you the V5c if he did it, just the new keeper bit.

If he didn't do it online then best idea is get a signature from the seller ASAP and send it off yourself so you know it's done. Keep hold of the new keeper slip so it can be taxed.

Thread: Lathe steady position
31/08/2019 09:49:21

When you're lining it up use a smallish piece of stock in the chuck to do it. Alignment is more critical as the diameter of the part decreases.

Thread: ACME thread identification question.
30/08/2019 11:58:26

Edited By Pete Rimmer on 30/08/2019 11:58:47

Thread: Lathe steady position
30/08/2019 10:56:49

Looks like the wrong steady or a badly drilled apron.

I would mill an inch wide flat across the holes to the depth of the counter-bore. Slot the holes to let the steady slide forwards into alignment and make a clamp plate to span the slots.

Before doing that, or lacking milling facilities, I would clamp it up with the front bolt only and see if it will rotate into a suitable position. If it does, re-drill the back hole further inboard.

Thread: ACME thread identification question.
30/08/2019 10:01:23

The Reltub guy who sells them on eBay quotes the size as 7/16" x 2.5mm ACME which is a bit unfortunate but not surprising IF he's correct about the ACME thread form. As I said above Denford used ACME for the imperial screws and modified square for the metric.

I'd be tempted to use the imperial one and suffer the 0.04mm-per-turn error for now until a metric replacement pops up. It's no worse than having the tool off centre height on a small diameter and much less than a badly worn screw.

30/08/2019 08:50:18

What tap you need depends on the diameter of the screw. Hopefully it'll be 12mm then you'd need a TR12 x 2.5 LH (Trapezoidal, 12mm diameter, 2.5mm pitch, Left Hand) tap.

However, there's no rule to say it has to be an ACME thread. For instance the Denford lathe, a close relative of the Boxford range (they were once the same company) uses a cross slide screw which is 1/2" diameter, 2.5mm pitch and neither ACME Nor Trapezoidal thread form but "modified square section" thread.

I'd try to find a drawing for the screw or the nut.

Thread: Help milling an angle
28/08/2019 11:03:16


Edited By Pete Rimmer on 28/08/2019 11:03:37

28/08/2019 11:03:15

Your 60 degrees angle is two 30 degree angles so all you have to do is clamp the plate down flat on the table (on stand-offs) and nod the head 30 degrees, do one side then flip the plate over. I like to use scrap 1/2" MDF for this kind of thing, lay the MDF on the bed, plate on top, couple of clamps and you know you can mill away without milling the table.

Thread: ACME thread identification question.
25/08/2019 20:33:06

The drawing calls for 7/16"-10 LH so that's surely what it will be.

25/08/2019 14:59:15

Your problem might simply be a matter of the wear in the nut having caused burrs that the worn screw rides past but the new tap does not.

Measure twenty threads on the screw. If it's 50mm you have a metric screw, if it's 50.8 (or 51 to a steel rule) then it's an inch screw. Inch screws are 7/16" x 10TPI LH

Thread: 4 jaw chuck axial allignment
19/08/2019 08:28:09

What are you using as a gauge? Simply touching two opposing jaws together and observing the light gap should tell you if they are parallel or not.

Thread: Garden shed find
18/08/2019 22:07:56
Posted by Nigel McBurney 1 on 18/08/2019 18:32:31:

.A machine tool fitter once told me the gears for the hi/low box are tufnol and easily damaged by operators changing speed before the spindle stops,his comment was "I have replaced an awful lot of those gears so wait till the spindle stops" .

That's true I made a Delrin gear for a Meddings MF4 (I think) for someone to replace a stripped one. Actually I made a pair so I have a spare one kicking around someplace that just needs finish-machining.

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