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I am presuming the drill was mounted in the tail stock. If you can duplicate the set up, and the drill wanders downhill, repeat the set up and rotate the drill 90° and see if it wanders in that

Part of the secret of Gun drills is the cooling. Not only does it cool the tool tip, but it aids in the removal of the chips. It is the buildup of chips that contributes to a twist drill wandering.

I have seen references to people adapting the Sherline thread cutting attachment to Taig lathes. Not sure how practical it would be to try and make it work on a Unimat.

A downward slant suggests a vertical misalignment. That is difficult to adjust on the Unimat as they are not designed for vertical adjustment. Also, there are several places that may be causing the

Hello Dick: As a tool maker I bought two Brown & Sharpe Best Test indicators, the first is 0.0005" and cost me $35 in 1973. The 0.00005 cost me $100 in 1977. They both still work great. Carl.

Hello, Keith, Yes, gun drills can produce a very deep and accurate hole. They have coolant holes in the ends and are usually used with coolant or oil under high pressure. We drilled deep waterline

Hello Carl, Where did you get the 50 millionths indicator? That is quite a close resolution to be using on a Unimat! Dick -- http://www.homemadetools.net/ forum/ OFF-

For those wondering about the significance of the X and Y capacitors, they are specifically designed for use in safety critical positions. X capacitors can withstand high voltage pulses without

What diameter hole was it? If it was relatively long you need to make sure you have a good quality drill. For very long holes you might need an unusual drill type - I think worm drills can help, also

were you rotating the workpiece against a non-rotating drill? If not you should try it.

Thanks! My problem is I was drilling thru a brass rod to make it a fuel tube for an SU carburetor. It was approx 2 inches long. I started with a small pilot, but as I moved up in size I noticed it was

Hi there, The X1Y2 class capacitor in the datasheet can be purchased from this ebay seller:?MIFLEX KSPPZ-10-2 Capacitor Indulgence Capacitor Radio Interference Capacitor for LED | eBay | | | |

I would be sure to replace that cap with one that is specifically rated to be placed across the mains.. The PN below is available from Mouser, etc. 0.01 uf + 2x 2500 pf @ 220V HPF 65.8 wrote:

I searched again on the part number -?MIFLEX KSPPZ-10-2. That leads to lots of suppliers in many countries, but this site gets you to the data sheet:

Hello Elliot: I checked my Unimat (1972) with a 0.00005" indicator and found the headstock / tailstock alignment very good. I have the numbers at home in my lathe book, but the headstock pin was as

Some eBay items are only available via a specific country. If you need Unimat items for example, it's worth trying eBay Germany and asking the seller if they'll ship. However these caps are very

Yes here it is: eBay item number: 232903251844

Apologies - the Ebay code that was mentioned for whatever reason does not get me anywhere. Could either of you perhaps share the German supplier's website with a link to the specific item? Many thanks

Loosen off the head stock and the tail stock clamp a bar in each chuck then lock the head and tail stock take out the bar and try a cut. Phill

Many thanks all, I was speaking with a guy yesterday he said have a look in an old electric pistol drill you might find one there, but if not have a look on e-bay and he directed me to the same German