DVR Drillpress is getting closer

20140401-190404.jpg

The 2nd gen DVR drillpress is in NZ at the Teknatool laboratory, being put through its paces.

Must be getting closer to a release candidate. Can’t wait!

Think some Australasian testing might be required (hint hint!)

Episode 98 Upgrading Jaws to Nova Infinity

Episode 98 Upgrading Jaws to Nova Infinity

Episode 97 Upgrading the SuperNova2 to Infinity

Episode 97 Upgrading the original SuperNova2 to be a SuperNova2 Infinity chuck, with quick-change jaws

Mounting the Longworth

Despite knowing the Nova DVR XP is a pretty substantial lathe, I was still a bit iffy whether the Longworth chuck I had picked up at the wood show would actually fit.  It wasn’t whether it would fit and be able to be spun up – being able to turn the DVR head outboard means the lathe can mount a huge turning.  The question was whether the outboard tool rest would clear the chuck sufficiently so I didn’t have to find an alternate tool rest.

disk-1

I needed have worried.  A 24″ chuck fits just fine on the DVR.  It is too large for me to be able to use the tailstock, but that is just the price I have to pay for such capacity.

The Longworth chuck design was inspired by Mr. Longworth from the Hunter Valley Woodturning Club, NSW, Australia in 1989.  One of those simple yet cool concepts (or applications of a concept) that makes you wonder why it took so long for someone to think of it.

disk-2

Still, turning a bowl that then justifies having it reverse-mounted in this Longworth (at maximum capacity) would be quite an experience.  Or should I say will be!

disk-3On the back is a simple metal disk to be held in the jaws of a chuck.  In this case, nothing beats the power of the Titan II chuck, with the power jaws to boot.  Seems fitting to use the most powerful Nova chuck to hold such a large aftermarket chuck on the lathe.

Looking forward to giving it a workout!  Will need the room of the new shed however – the chuck may fit the lathe, but the combination is too tight for the current space.

 

The Story Continues

The DVR XP was just the start of the story (and more recently, the DVR 2024) – a lathe with a direct drive motor.  But not just any motor – a fully computer-controlled compact, powerful, state-of-the-art digital variable reluctance motor.  This provided a significant number of benefits, including a motor that can both sense load and immediately react to load changes to maintain a constant speed. Happens to provide significant power savings as well, seeing as when there isn’t any load, the power consumption of the motor drops right away.  So power is consumed only when needed, and only the amount that is required for the load applied.

The computer can also detect other adverse conditions, such as if the shaft is locked, if the tool is digging in etc, and immediately cuts power to the shaft.  Given the spindle of the motor is the drive for the machine, there is no loss in belts slipping, loss in gearing or other methods to transfer the motor power to the chuck. There is a significant decrease in the amount of noise produced compared to a traditional motor and belt (or gear) solution.

DVR XP

DVR XP

The lathe obviously benefits greatly from having a DVR motor as its power source, but it isn’t the only machine that could.

The next chapter in the story was the introduction of a DVR motor to the ShopSmith PowerPro- the first use of the DVR in an independent manufacture’s product.  (Yes, I know there is a Record branded DVR lathe, but a rebranding doesn’t count!)

ShopSmith PowerPro

ShopSmith PowerPro

Then of course is the DVR Drillpress.  But that is not the only tool that will have the DVR motor added to it. For one, if you own a Nova 1624, there will soon be a DVR package drive that can be retrofitted to this, and other machines so they gain the advantages of the DVR motor.  (Don’t forget remote control, such as the upgrade I did to my XP).  For the 1624, it won’t be a direct drive, but will only use a single belt position, and all the speed changes will be done with the DVR motor alone.  You will still have chisel dig-in sensing, the ability to upgrade to remote control, and the power saving benefits of the DVR motor. Oh, and of course digital speed control through the full RPM range.

1624 Retro Upgrade

1624 Retro Upgrade

Now to the drill press – more info!

Drill Press Sensors

Drill Press Sensors

The extra information makes the drill press even more amazing – and making a drill press amazing is a feat in itself!

The load sensing function allows:

1. Slow Start – The slow start function detects the load on the drill bit. The motor will initially run at a slow speed (to make a small hole) and when a load is detected past a certain threshold the speed will then increase to the predetermined running speed.

2. Breakthrough Detection – Detects at a micro-second level if a breakthrough in material has occurred or not, if it has, then the speed will be increased to reduce the amount of burr/tear out.

3. Tool Analysis – indicates dull or damaged drill bits.

4. Proximity Sensors – detects chuck keys left in drill, proximity of hands and sleeves to the moving tool.

In addition, the DVR smarts means that there is intelligence available with its onboard computer;

Intelligent Speed Selection – no belts to change, you can digitally select your speed or choose your project and materials and drill bit, and allow the DVR Drill Press to do it for you.

Wide speed range – from 100 to 5500 rpm

Drill Depth/Tapping/Reverse Cycle – The tapping cycle uses sophisticated depth sensors to drill until a user defined depth is reached, and when the user lifts the drill press handle, the drill then runs in reverse

Speed Wheel – Activating the handle allows the motor to speed or slow down accordingly

Dull tool indicator

Wireless Remote Enabled – Can take optional accessory wireless wrist remote

USB ready for software updates

On board memory – allows user to store favorite programs and settings – useful in production environment or in returning to set/favorite projects.

Low maintanence – no belts to replace, and mechanically a very simple design with industrial grade electronics.

Full smartphone device integration – software upgrades could be available to allow integration with smartphones for control of panel and integration with project Apps.

Hang on – what was that last point?

Smartphone Integration

Smartphone Integration

With Eager Anticipation

This is something I have really been looking forward to ever since I heard it was being developed.

As mentioned a ways back, Teknatool (inventors of the 4 jaw self-centreing chuck for wood turning, and the DVR lathe) have turned their attention to other products that could benefit from the significant ease of operation, power and easy variable speed of the DVR motor.

One such product is the drill press, and Teknatool have chosen the Wood show in Las Vegas to demonstrate the prototype.

It is a perfect synergy.

20130730-014918.jpg

The drill press is constantly assessing the drilling operation. If the computer detects anything abnormal, such as a catch (happens often as the drill bit is just exiting the workpiece on the far side, which sometimes results in it simulating a helicopter!), a slipping bit etc, the motor will cut out surprisingly quickly. They use this same feature on the lathe for when the chisel takes too big a bite and catches.

It can detect if your bit is blunt or damaged, or if you’ve gone and caught some clothing around the bit. This is going to be an awesome drillpress!

Complete control over the variable speed, digital speed readout, constant speed with the DVR motor ramping up the power as needed to maintain the speed under load.

Expect around 9-12 months before products start hitting the shelves.

20130730-015033.jpg

20130730-015110.jpg

The display at AWFS is also very interesting – if you look closely at the picture of the chuck on the right, it looks like a SuperNova2, but I suspect this is actually the new interchageable jaw chuck (it doesn’t use twin bolts to hold each jaw on – one set can be slid out, and the next set slid in – toollessly (is that a word?))

20130730-015201.jpg

Interesting to see the accurate digital readout of depth, load set speed etc.  The ability to zero off your drill bit (very important for accurate drilling, given they are all different lengths!)

Given that the motor is direct-drive to the shaft, I was surprised to see that the head is fixed, and cannot tilt, and the table is such a traditional design with a coarse thread height adjustment.  Wasn’t expecting that – it still leaves a margin for inaccuracy if the operator doesn’t level the table properly.

It may be that this is an example of the head-only model (will seek clarification) – they are first releasing the drillpress head, so you can upgrade your existing drill press, and then down track releasing a full drillpress model.  Upgrading an existing drill press will obviously be cheaper, but you have to wonder what innovations Teknatool will bring to the lower half of the drill press!

***Update*** I can confirm that this specific example was a DVR drill press head mounted on an existing base, and is not an example of the full Teknatool/Nova Drillpress solution.

Irrespective, the addition of DVR technology into the drill press is a massive step forward, and I am certainly looking forward to the next tool to receive the DVR treatment – the tablesaw is certainly in their sights. Will this become a serious contender to the SawStop?  The DVR motor may be capable of providing that sort of capability, and without the blade destruction of an aluminium brake slamming into the blade teeth.  Of course I am speculating wildly!

In any case, I can’t wait to see the new drillpress on the market!

One turn deserves another

Teknatool have just released a beta jaw for testing by the great unwashed, which will particularly (and specifically) appeal to pen turners.

A beta, in the sense that it is a limited release, and subject to change I guess.

It is a 2 jaw, long nose set for holding square pen blanks for drilling on the lathe. I’d assume that once you finished that step, you can open the jaws wide enough to be able to slip your morse-taper pen mandrel in in through the chuck and complete the pen turning operation all without leaving he lathe.

20130612-024128.jpg

20130612-024146.jpg

20130612-024200.jpg

At some stage, when I can get a set of these jaws, I will mount them on my Nova Titan chuck! The ultimate pen turner’s setup!

%d bloggers like this: