Member postings for Sam Slater

With the MEM switch some of the bakelite was missing at the area were the push button is. So you couldn't push it on. Also it wasn't tripping when the limit switch is pressed. I spent a long time trying to wire it so that it trips but no luck.

Hello,

I obtained a Qualters & Smith Power Hacksaw.

The motor switch was not working. It was the original switch made by MEM. One of those older electro-mechanical switches, were a transformer breaks/connects the circuit.This MEM switch also had thermal protection.

The motor is 3 phase. I decided to replace the MEM switch with a modern motor switch with thermal protection, as I could not find a replacement on ebay with the right amperage.

I purchased a Schneider motor breaker with thermal protection

http://www.ebay.co.uk/itm/Thermal-Magnetic-Motor-Protection-Starter-Schneider-Up-to-15kW-1-or-3-Phase/272713903327?ssPageName=STRK%3AMEBIDX%3AIT&var=571849511183&_trksid=p2057872.m2749.l2649

I connected it up fine.

Now on this power hacksaw there is a limit switch actuated by a cam so that the saw cuts off once the saw reaches the bottom or top. The plan was to connect the cables of the limit switch to one of the 3 phase cables so that when the limit switch is pressed down one of the 3 phases cuts off. So that is what I did and Yes one of the 3 phases I selected to connect the wires of the limit switch does cut off when the limit switch in pressed down.

Well the problem is the motor will still run with only 2 of the phases connected to it. So my original thinking that I could shut down the motor by switching one of the phases off with the limit switch is completely wrong.

I need to break the circuit completely, all 3 phases, onece the limit sitch is actuated.That is what the original MEM switch was doing.

So how do I actually do this?

I have both a mill with an mt3 taper spindle and a old BP with the R8 spindle. The BP I have dismantled as I am restoring it. The small mill with the MT3 taper is working.

Thank you for the link for the collet chuck. MT3 shanks for drill chucks you mean sleeve?`http://www.arceurotrade.co.uk/Catalogue/Adaptors-Sleeves

item 120-010-00300?

I have the drawbar.

didn't think a place like Brighton would have ever had a foundry. I worked in one, aluminium. I could never decide if the smell of aluminium on my cloths was bad or nice. strange.

You are correct in assuming that I was intending to use the mt3 chuck to attached mill cutters. I have learnt the error of my ways .

I will get a end mill holder with a mt3 taper and a thread for a draw bar.

I ordered this

http://www.ebay.co.uk/itm/131194819226?_trksid=p2059210.m2749.l2649&var=430434895280&ssPageName=STRK%3AMEBIDX%3AIT

so to fit it on the MT3 spindle I will need an adapter MT3 to R8 taper. Its getting confusing.

Any how I will still need a way to attach drills to the MT3 taper spindle, using the MTS drill chuck.

Hi,

I aquired a small mill with a morse taper 3 spindle. The spindle of the machine allows for a draw bar. I would like to attach a morse taper 3 or 2 chuck to the spindle. The 2 chucks I have with the 2 and 3 morse taper have a tang.

I have been looking on the internet for a arbor/sleeve that I can insert into the MT3 spindle and attach a draw bar.

This arbor/sleeve for tool holding would have MT3 taper on the outside,M12 thread (for the draw bar), and a MT3 or 2 taper on the inside with a tang, to insert the chuck into.

The problem is I can't find one on the internet, leading me to believe such arbors/sleeves don't exist for MT3 taper spindles. Is this correct?

Would someone be kind enough to educate me on how to attach my MT3 and 2 chucks, With a tang, to the MT3 taper of the spindle.

I would like to use a draw bar.

Many Thanks

Thank you guys for the comments. I had not realised the other end of the belt goes through the middle of the bed. I am completely new to this. I don't think I would have realised by myself . I don't thing it will rub once I do this.

This lathe is new to me. It came complete, appart that the belt was not attached and that I had to attached a cable to it and a 3phase socket. I wil move the counter shaft so that the belt runs free. I will post a pic.

Hi,

I am having trouble attaching a brammer belt to a boxford mark III lathe. The belt is rubbing on the head stock and on the square the belt passes into the cabinet. I have attached 2 pics. Can anyone help in informing me how to attach the belt properly?