Member postings for Kevin F

Thanks Chris

Hello , I need to tap an internal thread for a valve cap 8v1 .307 X 32 tpi , now the question is do I need the schrader tap which is expensive or I’ve found a 5/16 x32 tpi tap at a very reasonable price ,would the unff tap be ok

It’s not my compressor , I was asked if I could repair it , the diameter is 7/8ths and unfortunately the compressor was dropped when it was being unloaded , it was a nice clean break and on investigation the casting looked to be of good quality .

Edited By Kevin F on 28/12/2018 10:03:22

Today I repaired a broken compressor crank , brief description below .

Firstly , I removed the bearings , and trued up the crank in my Myford ML7 lathe using a dti and held one end in my 3 jaw chuck and used a fixed steady on the other end , I could then face up the crank and drill and bore a hole to locate the spigot on the new piece I make .

I knurled the spigot and pressed it in the crank , I also pinned the spigot , more pics in my album .

Edited By Kevin F on 27/12/2018 22:13:05

Edited By Kevin F on 27/12/2018 22:14:04

Hello, at the moment I have a small vertical milling machine , I’m looking for something bigger and sturdier than what I have , whilst keeping my eye out for a replacement miller .

I happened to find a nice looking horizontal machine .Ive thought about all the parts I make and there’s only one I can think of where I’d require the use of a vertical mill.

I’m in a position where I don’t have too sell the vertical machine too fund another milling machine , but by the same token I’m a bit tight on space , what are the advantages of a horizontal machine .

Welcome John , how’s about making yourself some simple tools , like a pin punch and a center punch , both are relatively easy for a beginner to make and will be useful to have in your workshop .

Thanks Robert , if I buy the gearbox , I’ll be in touch with you .

Edited By Kevin F on 04/11/2018 20:08:50

It’s all there apart from the lead screw .

Thanks for the replies .

I’m toying with the idea of fitting a myford super 7 quick change gearbox to my myford ML7 .

What modifications would I need to make if any ?

Thanks in advance .

I never use feed too part off , I always feed in by hand , this way I can ‘ feel ‘ what’s going on during the parting process and if need be I can clear the swarf by winding out the tool a little .

I think the op needs to Take out the backlash before parting off and check how much play he has in the bed and cross slide , also the tool clearance and center height and spindle speed .

Edited By Kevin F on 04/11/2018 11:53:01

I recently ( last weekend ) replaced my Ml7 countershaft and fitted oilite bushes , I encountered the same problem as you ,what I did to over come the problem was to sand the countershaft down using 320 grade wet and dry paper on my other lathe.

Once I spent a bit of time polishing the shaft it fitted perfectly ,no play or sloppiness , the pulleys were still a nice fit too ( before anyone makes a comment ) remembering that they located on the shaft via grub screws , I 'spotted ' the shaft where the grub screws would sit ,ensure they won't turn on the countershaft .

What a waste , just think of the widower's husband who would have spent hours tinkering with it and enjoying his time  using the machine , I'd be turning in my grave if I knew that would happen to my equipment .

I'm on the look out for a screw cutting gearbox for a Ml7 as well as a fixed steady as per my wanted add and to read of one going to waste is utter madness .

Edited By Kevin F on 17/07/2017 19:41:34

Thanks Bazyle , I've had a look and followed your explanation and I can now select the high speed range on my ML7 , it's simple when you know how , I just couldn't figure it out at the time !

Thanks Jon for taking the time to reply , I've read your link you posted , I've not used the lathe in anger yet ,so we'll await to see how it performs .

Hi Jon , yep I've removed the socket cap Allen key and the toothed key , I've also lowered the lever which engages the back gear , I've switched on the lathe and it spins faster but as soon as you go and take a cut the 3 jaw chuck stops spinning but the headstock shaft still spins at the same speed .

I've put a cut on in back gear and it takes a sizeable cut no problem ,for info I'm not trying take a big cut at high speed and the material is aluminium 60826 .

Duplicate post ( sorry )

Edited By Kevin F on 02/07/2017 15:11:21

Edited By Kevin F on 02/07/2017 15:09:38

Edited By Kevin F on 02/07/2017 15:10:31

I've just purchased and ML7 and it will only run in back gear ? I've removed the wedge and reinserted the wedge and it doesn't matter , I still can access the higher speeds , any suggestions ?

The ML10 centre height is 3.250" and the distance between centres is 13" ( unless it's the long bed 18" ) so it is slightly smaller than the conquest which has a centre height of 90mm and 350mm between centres , I agree you will miss the flexibility of the variable speed motor at first, I owned a warco lathe ( similar spec to the Chester ) which had variable speed which was a great asset to have but As time has gone by I don't miss it at all , the ML10 I have now is not my first Myford lathe ,I had an ML4 before and the ML10 feels so much more ' capable ' a very sturdy machine for its size .

As for the actual physical weight ,I don't have a figure to hand but two adult men can easily handle the lathe ,spares and parts availability is fantastic ,in my opinion I'd go for the ML10 I'm sure you won't be disappointed ,if there's any specific questions just ask .

Edited By Kevin F on 08/01/2017 23:10:53

Edited By Kevin F on 08/01/2017 23:12:26