Search found 246 matches
- Mon 04 Jan , 2016 22:52 pm
- Forum: Viceroy
- Topic: Chuck & spindle nose flex?
- Replies: 9
- Views: 9753
Re: Chuck & spindle nose flex?
Hi The Denford is a relatively small and light lathe. Flex is normal. Too much is abnormal. I would run a few cuts on a test piece to check that you can turn a parallel bar. You have to allow for deflection in order to achieve accurate dimensions. Specifically you should aim to reach a target diamet...
- Sun 03 Jan , 2016 23:22 pm
- Forum: Viceroy
- Topic: Before I go and damage the spindle/spindle bearings
- Replies: 10
- Views: 13179
Re: Before I go and damage the spindle/spindle bearings
Hi
In the absence of any other replies, I still think my method is the best option.
If you find a better way, please let everyone know.
In the absence of any other replies, I still think my method is the best option.
If you find a better way, please let everyone know.
- Sun 03 Jan , 2016 23:10 pm
- Forum: Viceroy
- Topic: Surface finish when turning Mild Steel Bar.
- Replies: 4
- Views: 6382
Re: Surface finish when turning Mild Steel Bar.
Hi Based on similar early experiences I had, I suggest two things. 1. Buy a length of good known grade steel. 2. Run the carbide fast and deep. If it isn't scary, your not doing it right. If you look up the data sheet for the particular inserts you are using, you will find that a "fine" cut translat...
- Thu 29 Oct , 2015 21:10 pm
- Forum: Viceroy
- Topic: Factory Made Taper Tracer Attachment
- Replies: 8
- Views: 9639
Re: Factory Made Taper Tracer Attachment
Hello
Just mild steel and brass, straight out of the scrap box.
I can't look at my lathe at present, but I think you may be referring to the holes for the threading gauge.
Just mild steel and brass, straight out of the scrap box.
I can't look at my lathe at present, but I think you may be referring to the holes for the threading gauge.
- Sat 26 Sep , 2015 9:08 am
- Forum: User Stories / Projects / Courseware
- Topic: Viceroy T.D.S 1/1 G.B - All finished
- Replies: 22
- Views: 57380
Re: Viceroy T.D.S 1/1 G.B - All finished
Hi
Attached is an updated photo of the lathe.
It how has a:
Attached is an updated photo of the lathe.
It how has a:
- shelf,
electronic variable speed drive,
bigger 1.2kW motor
magnifying light,
adjustable feet and,
a lot more tooling
- Tue 08 Sep , 2015 21:14 pm
- Forum: Viceroy
- Topic: TDS metric/imperial or imperial/metric screwcutting.
- Replies: 2
- Views: 4523
Re: TDS metric/imperial or imperial/metric screwcutting.
Hi I have looked at this option but I found that the cost of having gears cut was eye watering. As with the casting, it would be more cost effective for a group of people to place one order for multiple gear sets. I now have a second lathe that cuts metric and imperial threads so I won't be taking a...
- Sat 08 Aug , 2015 21:41 pm
- Forum: Viceroy
- Topic: TDS 1/1 G.B.L. drivetrain modification
- Replies: 7
- Views: 9183
Re: TDS 1/1 G.B.L. drivetrain modification
Hi I have retained the factory link belt between the headstock and the lower intermediate pulley shaft. The poly vee belt goes between the motor and the intermediate shaft. There are photos already posted in the Denford forums. It would be a major job to run the poly-vee belt all the way to the head...
- Sun 02 Aug , 2015 10:21 am
- Forum: Viceroy
- Topic: Uploaded Drawings In one PDF file
- Replies: 1
- Views: 4182
- Tue 28 Jul , 2015 12:03 pm
- Forum: Viceroy
- Topic: Viceroy TDS 1/1 GB Drawing No 35
- Replies: 4
- Views: 6934
Re: Viceroy TDS 1/1 GB Drawing No 35
Hi
Some time ago I purchased a piece of polycarbonate sheet (shatter proof) to make a chip guard. I just haven't got around to making it yet. Too many other projects.
Some time ago I purchased a piece of polycarbonate sheet (shatter proof) to make a chip guard. I just haven't got around to making it yet. Too many other projects.
- Mon 27 Jul , 2015 9:30 am
- Forum: Viceroy
- Topic: Viceroy TDS 1/1 GB Drawing No 35
- Replies: 4
- Views: 6934
Re: Viceroy TDS 1/1 GB Drawing No 35
Hello
I am sure that future generations of Denford TDS owners will appreciate your efforts.
A very useful reference. Much more information that is usually available for any lathe.
I didn't know that Denford made a chip screen. One of the few Denford accessories I don't have.
I am sure that future generations of Denford TDS owners will appreciate your efforts.
A very useful reference. Much more information that is usually available for any lathe.
I didn't know that Denford made a chip screen. One of the few Denford accessories I don't have.
- Wed 08 Jul , 2015 1:33 am
- Forum: User Stories / Projects / Courseware
- Topic: Poly Vee Pulley
- Replies: 0
- Views: 11255
Poly Vee Pulley
Hello Another small project finished. This is a poly-Vee pulley for another VFD lathe conversion and is made of mild steel. This is the forth pulley I have made so I am refining my technique with each one. I rigged up a pretend DRO to accurately space each groove. Each groove was cut by turning each...
- Sat 27 Jun , 2015 10:15 am
- Forum: Viceroy
- Topic: 280vs lubrication.
- Replies: 3
- Views: 4275
Re: 280vs lubrication.
Hello Hydraulic oil is a good choice for the gearbox. It's only available in 10litres drums here so I use non-EP gear oil. EP lubricates erode yellow metals. I am about 99% certain that gearbox does not contain any bronze. The gearbox is so lightly loaded that just about any lubricant would be OK an...
- Fri 10 Apr , 2015 10:04 am
- Forum: Viceroy
- Topic: 280vs 3 phase conversion
- Replies: 7
- Views: 8029
Re: 280vs 3 phase conversion
Hello I don't know how relevant my experience with a TDS is to the 280VS. The drive arrangement looks completely different so you will need to make your own assessment of suitable pulley ratios. The Viceroy TDS had a mechanical pump belt driven off the end of the 4-step pulley (which made it 5 step)...
- Fri 10 Apr , 2015 4:58 am
- Forum: User Stories / Projects / Courseware
- Topic: Denford Viceroy TDS VSD conversion
- Replies: 20
- Views: 55460
Re: Denford Viceroy TDS VSD conversion
Hello Here is a close up of the upper control panel. I made a cardboard mock-up to test appearance and ergonomics. The panel was mounted on a stand over the hole for lamp. All of the cabling goes down through the inside of the headstock. All of the VSD controls a fully remoted so there is no need to...
- Fri 10 Apr , 2015 4:52 am
- Forum: User Stories / Projects / Courseware
- Topic: Denford Viceroy TDS VSD conversion
- Replies: 20
- Views: 55460
Re: Denford Viceroy TDS VSD conversion
Hello
Here is a drawing of the driver and intermediate pulleys I made for the Viceroy VSD conversion.
Note that the threaded half holes for the taper lock bush are not shown.
Here is a drawing of the driver and intermediate pulleys I made for the Viceroy VSD conversion.
Note that the threaded half holes for the taper lock bush are not shown.
- Fri 10 Apr , 2015 4:15 am
- Forum: Viceroy
- Topic: 280vs 3 phase conversion
- Replies: 7
- Views: 8029
Re: 280vs 3 phase conversion
Hello I settled on 75mm to 130mm for the poly-vee sheaves. The linked Vee belt drive pulley was 94mm dia. If I did it again I would go for 75mm to 150mm to give more torque. I don't believe a lathe can have too much torque. I think you will find that by the time you discard the redundant electrical ...
- Fri 10 Apr , 2015 4:02 am
- Forum: User Stories / Projects / Courseware
- Topic: Denford Viceroy TDS VSD conversion
- Replies: 20
- Views: 55460
Re: Denford Viceroy TDS VSD conversion
Hello The control panel was something I designed and made specifically for the Viceroy. I am using an ABB ACS50 drive. This is a small industrial unit, as opposed to the cheap economy (hobbyist) units. The ABB motor is also an industrial grade. Unfortunately this grade of equipment is expensive. I w...
- Thu 09 Apr , 2015 10:57 am
- Forum: User Stories / Projects / Courseware
- Topic: Denford Viceroy TDS VSD conversion
- Replies: 20
- Views: 55460
Re: Denford Viceroy TDS VSD conversion
Hello
I am converting my other lathe to VSD and have fitted a 3 phase/4kW/ 220VAC motor.
It's only taken a year so far.
There is no Nardini forum on the web so I won't be posting progress on this anywhere.
I made a poly-vee pulley on the Viceroy
I am converting my other lathe to VSD and have fitted a 3 phase/4kW/ 220VAC motor.
It's only taken a year so far.
There is no Nardini forum on the web so I won't be posting progress on this anywhere.
I made a poly-vee pulley on the Viceroy
- Thu 09 Apr , 2015 10:36 am
- Forum: User Stories / Projects / Courseware
- Topic: Retrofitting Spindle Digital RPM meter to a Viceroy lathe
- Replies: 1
- Views: 12508
Retrofitting Spindle Digital RPM meter to a Viceroy lathe
Hello I found a Chinese supplier of cheap digital tachometers specifically designed for machine tool applications. The trigger 1 pulse per revolution and measure the period between pulses. This means good update times even at low rpm. They are available in red and blue. I fitted a blue one to the Vi...
- Thu 09 Apr , 2015 9:51 am
- Forum: Viceroy
- Topic: 280vs 3 phase conversion
- Replies: 7
- Views: 8029
Re: 280vs 3 phase conversion
Hello I have just completed a VSD conversion on my Viceroy. Youtube: Denford Viceroy VSD Conversion These days, VSDs are cheap enough and have significant advantages that push rotary converters out of contention. If you three phase motor is dual voltage, changing the connections from Y to Delta for ...