Search found 246 matches

by dazz
Thu 09 Apr , 2015 9:41 am
Forum: Viceroy
Topic: TDS 1/1 G.B.L. drivetrain modification
Replies: 7
Views: 9183

Re: TDS 1/1 G.B.L. drivetrain modification

Hello I have implemented option 2 on my Viceroy but I retained the link belt drive to the spindle. Link belts are very good at absorbing shock loads. It would also be difficult to modify the spindle end to take a poly-vee belt You can see my efforts here: Youtube - Denford Viceroy VSD Conversion Bel...
by dazz
Thu 09 Apr , 2015 9:23 am
Forum: User Stories / Projects / Courseware
Topic: Denford Viceroy TDS VSD conversion
Replies: 20
Views: 55460

Re: Denford Viceroy TDS VSD conversion

Hello

After starting over 4 years ago, I have finally completed the VSD conversion on my Denford Viceroy.
Youtube Video of Denford Viceroy fitted with VSD and new controls
by dazz
Sun 15 Mar , 2015 5:40 am
Forum: Viceroy
Topic: Factory Made Taper Tracer Attachment
Replies: 8
Views: 9639

Re: Factory Made Taper Tracer Attachment

Hello

Nice.
Looks at least equal to the factory version.
by dazz
Sun 01 Mar , 2015 6:04 am
Forum: Viceroy
Topic: Threading auto knock-off
Replies: 11
Views: 11962

Re: Threading auto knock-off

Hi Here is the best drawing I have seen for a threading dog clutch. https://www.practicalmachinist.com/vb/general/auto-disengaging-thread-lever-144929/index2.html Where it is labeled "Lead Screw" should read "output shaft". For the Viceroy, this arrangement would need to be fitted to replace the tum...
by dazz
Sat 28 Feb , 2015 22:12 pm
Forum: Viceroy
Topic: Threading auto knock-off
Replies: 11
Views: 11962

Re: Threading auto knock-off

Hi Adding a threading dog clutch would be a seriously good accessory to add to any lathe that I have looked at in the past. There is plenty of room to add one to a Viceroy because of the space made available by removing the tumbler gears. I can see opportunity to improve on the designs I have seen s...
by dazz
Sat 28 Feb , 2015 8:52 am
Forum: Viceroy
Topic: Factory Made Taper Tracer Attachment
Replies: 8
Views: 9639

Factory Made Taper Tracer Attachment

Hello

There has been some interest in the Denford taper attachment. It's actually fairly straight forward and would be relatively easy to make a copy.

I have used a similar concept to make a tracer attachment for the top slide to shape the end of bars.
by dazz
Wed 25 Feb , 2015 20:53 pm
Forum: Viceroy
Topic: Threading auto knock-off
Replies: 11
Views: 11962

Re: Threading auto knock-off

Hi I looked at the problem of adding a dog-clutch for threading. The major issue is achieving a mechanical linkage between the gears running off the left end of the spindle, and the apron. Perhaps the easiest (but not easy) option is to run the linkage behind the threading gearbox. The fundamental p...
by dazz
Wed 25 Feb , 2015 20:22 pm
Forum: Viceroy
Topic: Threading auto knock-off
Replies: 11
Views: 11962

Re: Threading auto knock-off

Hello The only drawings I have come from this site. Chances are that a lathe without this feature could be fitted with the knock-off bar. This assumes that Denford used the same parts for all lathes, with or without the knock off bar. The only tricky part of the bar is the tooth rack that engages wi...
by dazz
Wed 25 Feb , 2015 9:25 am
Forum: Viceroy
Topic: Threading auto knock-off
Replies: 11
Views: 11962

Re: Threading auto knock-off

Hello Afraid not. It needs some careful design to get around all the shafts, gears etc in that area. If the trigger mechanism was sandwiched between two plates, it could be made to be about 5mm thick total. To use the half-nut lever to reset the trigger would probably require an adjustable travel. A...
by dazz
Wed 25 Feb , 2015 7:22 am
Forum: Viceroy
Topic: Vertical milling slide for TDS 1/2 PCS?
Replies: 10
Views: 10763

Re: Vertical milling slide for TDS 1/2 PCS?

Hi OK, I see that the Boxford and Denford have different spigots on the bottom of the compound. This link https://madmodder.net/index.php?topic=4171.0 is for a Boxford but you could apply the concept to making a boring table. Denford did make a T-slot boring table for the Viceroy. A shop made table ...
by dazz
Wed 25 Feb , 2015 7:08 am
Forum: Viceroy
Topic: Threading auto knock-off
Replies: 11
Views: 11962

Re: Threading auto knock-off

Hello
Yes, it is factory original. Not the best designed feature. It is more of a push off than a knock off.
It is reset with the half-nut lever.
by dazz
Tue 24 Feb , 2015 8:08 am
Forum: Viceroy
Topic: Threading auto knock-off
Replies: 11
Views: 11962

Re: Threading auto knock-off

Hi The knock-off is rubbish. Constant use would round off the edges of the half nut threads. The slow release would provide uncertain release. I reckon the way to go is to use the principle of a bolt action sniper rifle trigger mechanism. https://www.practicalmachinist.com/vb/gunsmithing/trigger-my-...
by dazz
Tue 24 Feb , 2015 7:46 am
Forum: Viceroy
Topic: Vertical milling slide for TDS 1/2 PCS?
Replies: 10
Views: 10763

Re: Vertical milling slide for TDS 1/2 PCS?

Hello

My Denford tool post is bolted into a wide T slot as seen here.
It makes it a versatile and rigid mount.
As far as I can tell, this looks identical to the Boxford.
by dazz
Sun 22 Feb , 2015 8:41 am
Forum: Viceroy
Topic: Vertical milling slide for TDS 1/2 PCS?
Replies: 10
Views: 10763

Re: Vertical milling slide for TDS 1/2 PCS?

Hi

I suggest you look for an old Boxford / Denford vertical slide. It is likely that the Boxford will fit the Denford.
I usually find it is better to buy good quality used tools than cheap new tools.
by dazz
Fri 05 Dec , 2014 10:18 am
Forum: Viceroy
Topic: Viceroy now fitted with adjustable feet
Replies: 4
Views: 6034

Re: Viceroy now fitted with adjustable feet

Hi

A good point. That risk is mitigated with seismic restraints that will hold the lathe upright in the event of an earthquake or other disturbance.
viewtopic.php?f=14&t=584
by dazz
Mon 24 Nov , 2014 10:44 am
Forum: Viceroy
Topic: Inverter / Variable Frequency drive unit
Replies: 9
Views: 9157

Re: Inverter / Variable Frequency drive unit

Hello I used a recycled centrifugal fan. The fan cools the motor at all speeds. Fitting a separate fan motor ensures cooling at low speeds and during periods when the motor has stopped. At high speeds, it avoids power being sucked from the motor driving a fan supplying too much air. Power increases ...
by dazz
Mon 24 Nov , 2014 9:46 am
Forum: Viceroy
Topic: Inverter / Variable Frequency drive unit
Replies: 9
Views: 9157

Re: Inverter / Variable Frequency drive unit

Hello
The whining noise you can hear is the fan mounted on the back of the motor. It's not that loud. The auto gain control on the camera sound makes it sound louder than it really is.

Inverter technology has come a long way in the last 20 years.
by dazz
Mon 24 Nov , 2014 8:29 am
Forum: Viceroy
Topic: Inverter / Variable Frequency drive unit
Replies: 9
Views: 9157

Re: Inverter / Variable Frequency drive unit

Hello

Here is my effort : https://www.youtube.com/watch?v=KJG5ohpvsVU

The Chinese have a saying that the quality is remembered long after the price is forgotten.
If you intend to do a decent job of installation you might as well get a decent VFD and motor.
by dazz
Tue 23 Sep , 2014 20:07 pm
Forum: Viceroy
Topic: My new viceroy lathe
Replies: 40
Views: 42782

Re: My new viceroy lathe

Hello

It is likely the stepped pulleys are not a matched set.
You could make one stepped pulley to solve the problem.
by dazz
Mon 15 Sep , 2014 6:42 am
Forum: Viceroy
Topic: My new viceroy lathe
Replies: 40
Views: 42782

Re: My new viceroy lathe

Doesn't look anything like mine.