Member postings for Emgee

Like Ian I found the design belt system the weak point of the machine, IMO conversion to Vee belt would be a big improvement when milling or drilling above 1/4".

I only built the head which was installed in the overarm sockets of an old Taylor Horizontal only mill, mine had an MT3 spindle and I did run the geared head but only to check it ran OK, a bit noisy but valuable speeds for some work.

Emgee

Not the ideal physical size for a motor, most people these days go for 3 phase with VFD for speed control, your motor reminds me of 1 my father had on a circular saw, it was under the bench and nearly always partly covered with sawdust. I think you may just about get your money back.

Emgee

Hi Jason

In the engine build article when using the cylinder lap you say the lathe is running "slowly", can you please advise the spindle rpm ?

Emgee

Bill

Straight tapers but only short, parallel part between about 1/4" long, both tapers OD as per the parallel part.

Emgee

Hi Bill

From memory I think the collets were double angle with a short parallel part between and a tubular extension from the back, the end part is slightly larger diameter and a sliding fit to the spindle bore.

If you check the inside of the closing nut you should see the angled closer, the other angle is on the inside of the threaded nose.

The collets are slit in 4 places.

Emgee

John

The following is Yahoo Groups Colchester Group page address, manual and spare parts list in the Files section all in pretty big pdf format. This is different to the hobby forum mentioned but has info re Bantam.

**LINK**

Emgee

Hi Danny M

Can you please post a picture of the "Centre Cam" tool ?

Emgee

Hi Norm

I don't have a transwave unit but a similar type and run the pilot motor in parallel, the pilot runs continuosly when there is power output from the inverter, there is no load on the pilot motor.

Emgee

Hi Darren, check your PM Inbox on the top of page.

Emgee

Hi Norm

Have you checked if there's an overload tripped ?

Emgee

Hi John

The end mill holder will most likely retain the cutter by a screw locating on the flat ground on the cutter, this type are called 'throwaway' cutters and are usually much lower cost.

The collet will of course grip the complete shank diameter for the collet length.

In both cases you will only be able to grip the 1 size of shank, however some cutters are available on a std shank size with different cutting diameters.

Emgee

stevetee

Where does the link take you to ?

Emgee

You could try fitting travel stops on all axis so your table movements will be restricted to the part you want to machine, same applies to the rotary table, stops can be fitted to prevent overtravel.

Emgee

Edited By Emgee on 15/02/2016 20:31:45

Hi Neil

A lot of work for a small increase but that's what competition is about, did you mean Profi engine but made a typo ?

Emgee

Hi Tim

The answer to c) is 5BA as posted. Although a,b and d are relevant for a complete specification of the required product, John has asked if Loctite make a high temp thread locker.

Like Jason I use Loctite 648 which I believe is good to 180/200 C, perhaps a search would find something better.

Emgee

I have already voted for Henry but I'm amazed at the very low cost of some modern equivalents, don't remember exactly what I paid for the Henry but £80 comes to mind and that was yonks ago. Looking at the spec of these machines they all seem suitable for mixed use in the workshop. Like many things nowadays more choice and lower prices all benefit the ME.

Emgee

Another vote for Henry.

Emgee

DrDave

Good news you have it running, what output power is the new motor ?

Emgee

Hi Will

I have the same set-up and found like you the foot didn't return, I added a light spring between the elephants foot and the top plate, the gauge always returns now to the same reading. It won't solve the coolant issue though but if you fit an 'O' ring in the top plate bore above the stem gripping point it would provide a seal against coolant, you may then need a little stronger spring.

Emgee

John

What value do you suggest for C1 and C2 please ?

Emgee