Search:

Yes there is a wide range of capacitor types available. IMHO you should be looking for plastic film self healing types as used for modern motor start and or run also used for power factor...

Just start with the simple turning tool as illustrated in the pdf at the top of the first page. This will turn down the metal held in the chuck and cuts from right (tail stock end ) to the left...

Here is a good illustrated guide to the angles required http://www.discoverlivesteam.com/books/Sharpening.pdf
Suggest you print this out and keep it by your grinder. I would suggest that you also...

Good so you are making progress. Just a note of caution about carbide edge cutting tools. 1. They do not like intermittent cutting as in turning square or hexagonal stock to a round. If you want...

Suggest rather than make up a washer use a thrust race these are available from ArcEuro Trade in the UK and you will find a good description on their web site of these lathes.

Here is the link to...

With any machine it is good practice to have the maximum support possible for both the cutting tool and the piece of material being worked. In the last picture you took it the tool could be better...

The test you have done with the blade indicates that the two centers are reasonably close in alignment and certainly close enough for your first ventures into the delights of turning.

Yes the...

There are no hidden fixings. The chuck is held in place on the register of the head stock spindle by thee fixings which will either be nuts and washers or short bolts. (four fixings if a four jaw)...

Harryn I agree but the better looking tube has a best before date of 7/81 - so it will be at best soft after 30 years. Some do have a getter that can be fired on installing to restore them but in my...

Those pictures look very much like power klystrons used in TV or radio transmitting stations. They are normally returned to the manufacturer who then replaces the heater / cathode and returns then...

These chucks are held on to the spindle by short bolts or nuts and a captive stud which is fixed into the back of the chuck. Having removed those nuts / bolts the chuck should just pull off in the...

Suggest you think about using a the compressor from an old freezer or car air con. If even that is too much $ then this link will do the job for small qualities of resin Chapter 6: Aerodynamics:...

I have the Amadale 7x14 lathe and have found very little wrong with it in out of the box condition. There are at least two main factories making 7x14 lathes in the Far East. There is Seig and...

Hi Mactec54

If you have found a stockist for stainless steel needle roller bearings that are sealed both ends i.e. have both inner and outer ground sleeves then I would be interested. My previous...

As this pivots about the foot rest on what looks to be a motor cycle or quad bike it is going to be subject to mud and water. Double sealed needle bearings are available but any moisture penetrating...

Hi Harry

You aim to use two screws per axis i.e. one each side of sole sort of gantry or table. Yes this will give you some increase in torque. However you need to consider how a stepper motor...

Harry - you do not say why you want to do this. Giggler's question turned out to be keeping the gantry from crabbing and a second motor and lead screw is not the only option or necessarily the...

You have the stock sliping back into the chuck that could have several causes:-

1. Assuming this is a self centering 3 jaw - are the chuck internals clean as they might be an you are losing...

I have been considering this for a wood lathe with a live router head with a 1 meter travel. The problem is IMHO the spring due to elasticity of the cord and errors due to the concentric run-out ...

Found the links this morning for small toothed belts motionco_Pulleys & Belts_Grooved Round Belt Pulleys_Buy from Stock also has a belt pulley centre calculator. Another source of the slightly...

If you are going to compare the "new" PCB portion with a known good PCB image then in my experience the registration does not have to be 100% as the eye is drawn to the mismatch. I have instigated...

Here is a link to a belt supplier 3mm pitch 9mm wide. http://www.motionco.co.uk/timing-belts-timing-belts-c-25_38_39.html There are some others that are smaller and when I am back home I will try...

Sorry I did not explain. Putting the windings of each motor in series increases the inductance and that limits the maximum speed / torque in the same way as wiring an eight lead motor where parallel...

Setting up should be easy as most if not all engines have their bores referenced to the head gasket face. If you must do this on an end mill simply bolt down the inverted block to the bed using...

Looks as if your motors are high inductance types from the 1amp 5 volt rating. Your drive is of the current modulated type so it will sort out the current shaping (PWM) correctly for series...

What is the bore and what are your expectations in terms of performance when done. Car engines are re-bored on a much sturdier machine than yours. They are machined then honed in two separate...

The base current is related to the collector current by the current gain of the dipolar transistor when it is normally forward biased. The relationship is called the hFE or small signal current...

Just a thought - check the chip type - almost certain to be Toshiba TB6560 - if so then the current is set by the two large resistors on the driver card. The values are chosen to give half a volt...

Why are you even considering this? Look at this series of bearings RM1 - RM2 - RM3 -RM4. all of these are "V" grove bearings designed for making linear motion. Many people use a 90 degree angle...

From the photo that grove is intended to take a retaining ring and is not intended to ride on a rail like vee grove bearings. IMHO that grove has a sharp edge and this would rapidly wear a grove in...