PERFECTO LATHE

[phil1962Participant @phil1962]

hi fellas new to all this but here goes I have a lathe that was made in Leicestershire its called a Perfecto Lathe is there any info on this lathe would it be metric or imperial is there a screw cutting chart for this lathe I read its the same as the myford ml2/4 also the Zyto any help would be grateful ATB Phil

[phil1962Participant @phil1962]

[Jim NicParticipant @jimnic]

Have you looked at the brilliant lathes.co.uk site? Lots of info there and it would seem that a screwcutting chart is available from him.

Jim

[phil1962Participant @phil1962]

my lathe

 

Edited By philip walker 1 on 01/03/2017 10:55:02

Edited By philip walker 1 on 01/03/2017 10:55:13

[phil1962Participant @phil1962]

Edited By philip walker 1 on 01/03/2017 10:57:16

[MikeParticipant @mike89748]

There's a fair amount of information on the Lathes & Co website – go to http://www.lathes.co.uk/perfecto/index.html

I had one of these bought from new in the early 1970s. It was OK as long as you didn't expect too much of it, but it soon let you know you were over-working it by starting a dreadful chatter which led to poor surface finish. Mine was imperial – I don't think there was a metric version. I replaced it with a Myford ML7R, which was far superior.

Hope I haven't put you off. You will get some good work out of your Perfecto is you treat it kindly!

[phil1962Participant @phil1962]

cheers not doing nothing to big just small parts I tried that site but don't give you the screw cutting chart would it be same as myford ml2/4 ?

[phil1962Participant @phil1962]

Posted by Jim Nic on 01/03/2017 10:53:48:

Have you looked at the brilliant lathes.co.uk site? Lots of info there and it would seem that a screwcutting chart is available from him.

Jim

Thanks Jim ATB Phil.

[JourneymanParticipant @journeyman]

Hi Phil, I started with a Zyto (very similar) many years ago (now have Warco WM250) . That little lathe will get you going nicely. You may want to beef up the benchtop a bit though (looks like 1/2" ply) you will find it resonates and leads to chatter. A length of kitchen worktop placed on top of the ply would be good, and easy to clean down too.

Cheers, happy turning

John

Edit: spelling

Edited By Journeyman on 01/03/2017 11:47:54

[phil1962Participant @phil1962]

Posted by Journeyman on 01/03/2017 11:39:38:

Hi Phil, I started with a Zyto (very similar) many years ago (now have Warco WM250) . That little lathe will get you going nicely. You may want to beef up the benchtop a bit though (looks like 1/2" play) you will find it resonates and leads to chatter. A length of kitchen worktop placed on top of the play would be good, and easy to clean down too.

Cheers, happy turning

John

Cheers john I have now added another sheet of 3/4 ply on top of this so around 1 1/4 thick now yes its a super little lathe its my first one its very quiet to just ordered some new cutters as the ones that came with it were all damaged it will do to get me started and only making small things at the moment so should be ok for that

[MikeParticipant @mike89748]

The pictures in Phil's posts show a machine exactly the same as mine. One quirk was that the carriage handwheel worked in the opposite direction to that on any other machine I have ever used – you turned it clockwise to advance the carriage the left. I think what really limited the machine's performance was a rather weak headstock bearing. I note that the very last Perfecto machines had a roller bearing headstock, which must have been a great improvement.

[Mick HenshallParticipant @mickhenshall99321]

Mike- my Corbett lathe has the same set up turn clockwise to advance saddle towards the chuck, its never been an inconvenience for me

Regards Mick

[BazyleParticipant @bazyle]

	Drummond Screwcutting Char
Threads	Mandrel	driven	driver	driven	driver	leadscrew
9	40	1	1	1	1	45
10	40	1	1	1	1	50
11	40	1	1	1	1	55
12	40	1	1	1	1	60
14	20	1	1	1	1	35
16	20	1	1	1	1	40
18	20	1	1	1	1	45
20	20	1	1	1	1	50
22	20	1	1	1	1	55
24	20	1	1	1	1	60
25	20	1	1	25	20	50
26	20	1	1	1	1	65
28	30	1	1	35	20	60
32	30	1	1	40	20	60
36	30	1	1	45	20	60
40	30	1	1	50	20	60
114.4	20	55	30	60	25	65
171.6	20	55	25	60	20	65
260	20	65	20	60	30	100

[BazyleParticipant @bazyle]

Had to split the postt as too large
Where there is "1" it is just to make the spreadsheet calculations work (in the part of the sheet not shown here) so just leave out or use idler gears to bridge the gap. You do not have to follow a chart slavishly it is just one way of getting the ratio needed. So if it shows 20 driving 40 you could use 30>60 or 25>50 if those are what you have.

[BazyleParticipant @bazyle]

	Metric
pitch	equiv tpi	approx	Mandrel	driven	driver	driven	driver	leadscrew	%
0.75	33.867	33.846	30	60	65	50	20	55	0.06
1.00	25.400	25.385	65	30	20	50	20	55	0.06
1.25	20.320	20.308	20	1	1	60	65	55	0.06
1.50	16.933	16.923	20	1	1	55	65	50	0.06
1.75	14.514	14.505	20	30	35	55	65	50	0.06
2.00	12.700	12.692	65	30	20	50	40	55	0.06
2.25	11.289	11.282	30	1	1	55	65	50	0.06
2.50	10.160	10.154	40	1	1	60	65	55	0.06
2.75	9.236	9.231	40	1	1	60	65	50	0.06
3.00	8.467	8.462	40	1	1	50	65	55	0.06
1.75	14.514	14.545	30	1	1	60	55	50	-0.21
2.00	12.700	12.727	20	1	1	50	55	35	-0.21

[ScrumpyParticipant @scrumpy]

I had the perfecto lathe in the 1970 I completed several small stationary engines on it the only problem I had was getting the cutting tool to the correct height until I altered a myford multi tool holder to fit , You will enjoy it as it a good starting point

[phil1962Participant @phil1962]

Posted by Bazyle on 01/03/2017 13:00:58:

	Metric
pitch	equiv tpi	approx	Mandrel	driven	driver	driven	driver	leadscrew	%
0.75	33.867	33.846	30	60	65	50	20	55	0.06
1.00	25.400	25.385	65	30	20	50	20	55	0.06
1.25	20.320	20.308	20	1	1	60	65	55	0.06
1.50	16.933	16.923	20	1	1	55	65	50	0.06
1.75	14.514	14.505	20	30	35	55	65	50	0.06
2.00	12.700	12.692	65	30	20	50	40	55	0.06
2.25	11.289	11.282	30	1	1	55	65	50	0.06
2.50	10.160	10.154	40	1	1	60	65	55	0.06
2.75	9.236	9.231	40	1	1	60	65	50	0.06
3.00	8.467	8.462	40	1	1	50	65	55	0.06
1.75	14.514	14.545	30	1	1	60	55	50	-0.21
2.00	12.700	12.727	20	1	1	50	55	35	-0.21

Thank you for this most help full so to cut a thread 26tpi I use a 20 on mandrel 65 on lead screw then any gear that will link them together is that right ? thank you

[phil1962Participant @phil1962]

Posted by Mike on 01/03/2017 11:51:36:

The pictures in Phil's posts show a machine exactly the same as mine. One quirk was that the carriage handwheel worked in the opposite direction to that on any other machine I have ever used – you turned it clockwise to advance the carriage the left. I think what really limited the machine's performance was a rather weak headstock bearing. I note that the very last Perfecto machines had a roller bearing headstock, which must have been a great improvement.

Can you still get headstock bearing for this lathe if so were from just in case

[MikeParticipant @mike89748]

Hi Phil, Personal message sent, in reply to yours.

[Anonymous]

Posted by Mike on 01/03/2017 11:51:36:

One quirk was that the carriage handwheel worked in the opposite direction to that on any other machine I have ever used – you turned it clockwise to advance the carriage the left.

Saves an idler gear and stub shaft in the saddle, so it's cheaper.

Andrew

[Author]

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