Here is a list of all the postings paul coombs has made in our forums. Click on a thread name to jump to the thread.
Thread: Myford Lathe service |
17/02/2022 20:47:27 |
Not been around here a while,as my myford is basically unuseable.its way out of spec,although seems to run ok.It badly needs a decent set up.my attempts,hsvent made much inroads.plus i dont have time with various work projects Its more economical to me to pay for it to be done With that in mind,i mailed Darren about 2 years ago eventually he responed,,and told me that he would get back to me,when hes going to be in area .I badgered him every few months,eventually this week he told me that his partner didnt fancy the journey to essex No problem and i respect his decision,it was nice of him to tell me.even tbough i offered at least 25%more than his standard rates Anyway im stil without a fully functioning lathe if anyone is selling a fully serviced,plug and go myford,drop me a line |
Thread: Myford set up.Time to get it right. |
03/10/2020 19:35:18 |
Thanks for that Martin.Im off to buy a new chuck right now! |
03/10/2020 15:51:20 |
Edited By paul coombs on 03/10/2020 15:52:02 |
03/10/2020 15:50:05 |
Ok guys finally managed to find some time.Today I removed chuck and checked run out on spindle as suggested.No matter what I did I couldnt get more than 1 thou runout.Happy with that.I did notice that the spindle bearing caps were not pulled down tightly.I pulled them down and as I thought the spindle locked.Then backed off quarter turn and the spindle runs freely. Im presuming that my issue with run out is the chuck.Pic of it attached along with 2 jaws.It doesnt state a make,but is stamped "Specially made for Myford ML7" If I have to replace it, I presume I will need to reuse the back plate.Any advice on removal of back plate.I removed the Allen Keys.Not sure of what is required next? Edited By paul coombs on 03/10/2020 15:53:31 |
27/09/2020 07:57:18 |
thanks for all the replies guys.Its now blatantly obvious, that accuracy and true running begins at the spindle (bearings) and that has to be origin of accuracy checks. I will remove chuck, re check the spindle with gauge.Im kinda hoping ill find thats where the issue is. I watched the youtube guy many times.Really great info.He actually admits to using a second hand spindle and bearings,which he replaced almost immediately.I dont care about spending money on my lathe.I love using it, and any investment only protects it value anyway.
I bet that a lot of the used ones, on offer (Ebay etc) are well used and worn.
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26/09/2020 20:12:34 |
thanks guy.It doesnt perform that great when cutting,measured whilst rotating.With the excessive movement, when I gripped the test bar,Im thinking it might originate from spindle/bearings wiil retest with mandrel, without chuck on monday! |
26/09/2020 17:43:38 |
Posted by Martin Kyte on 26/09/2020 17:29:29:
Posted by paul coombs on 26/09/2020 17:16:11:
Not sure what MT socket is? However, that wouldnt explain the movement though would it? The spindle taper is 2 Morse same as your test bar. Take the chuck off, clean the spindle taper well and insert the test bar. Now do your test again. Do ensure you are just pulling the test bar and you do not have your other hand on the cross slide. Ideally put your other hand in your pocket. regards Martin thanks Martin.
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26/09/2020 17:43:17 |
Posted by clogs on 26/09/2020 17:19:35:
thats an awful lot of play... is the chuck secure on the shaft, jaws tight on the bar and the bar is a good way in.....? can you get the DTI on the back end of the main shaft....or near enough... with the test bar in the chuck and a good tug will show up any play...... not sure of the lathe design but aren't these brearings adjustable...??. Yup chuck is tight, and bar well located.I put DTI on back of shaft, couldnt see any play
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26/09/2020 17:16:11 |
Not sure what MT socket is? However, that wouldnt explain the movement though would it? |
26/09/2020 16:55:26 |
I knew it had runout.Bolted to floor on Myford stand, with correct mounts.I levelled the bed with engineers level. despite my best efforts, the runout didnt really alter, it stayed about .9mm then I noticed that by grabbing the test bar,I could get up to 1mm movement on the test bar.I think the movement is behind chuck.Im presuming, I have worn bearings?Any input grateful thanks. |
Thread: Ml7 New Owner. |
02/01/2020 19:42:55 |
Thanks guys !!! |
02/01/2020 16:57:52 |
02/01/2020 16:57:25 |
02/01/2020 16:46:25 |
Hi guys.Feeling bit daft about this.However, if you dont know, you dont know & I dont! I got my drill chuck from RG tools.All working fine,using the RG arbour.However, Im not sure how to remove it.Plus if the drilling gets va bit tough, it spins.I looked on various videos ,and most seem to just unwind the back stop, and it pushes itself off.Mine wont wind back that far.Last time, I used a rubber malet, which cant be right.Plus the arbour doesnt have a flat edge(as my other one does) to use a spanner to remove it. Secondlly, I was turning down some Delerin rodding (Plastic) its a fairly large diameter, and one of the chuck jaws fell out.Now, I cant get the jaws realighned Obviously im missing something here! |
Thread: What do i need? |
09/12/2019 18:34:01 |
Sorry meant tailstock ,still learning! Thankyou. |
09/12/2019 18:15:13 |
Guys have been working through parts that I want for my ML7 I bought a drill chuck, courtesy of RG tools.However, Its obvious that it wont attach to saddle without another part.Can someone please let me know whats required please? |
Thread: Ml7 New Owner. |
26/11/2019 23:10:39 |
Hi Im in Essex,so fair distance! Thanks for the offer though.looks like a lot of reading and Youtube videos to the rescue! |
25/11/2019 17:44:25 |
Many thanks for the responses guys.I think ill get a faceplate anyway.Ive bought a quick change tool post and chuck from RGD.Ill carry on learning! Edited By paul coombs on 25/11/2019 17:46:21 |
24/11/2019 14:55:08 |
Hi there.Im the proud owner of a low use ML7.I primarily rebuild old classic motorcycles.Therefore Im hoping it will be well used and time saving. however, Its been 40 years since I last used a lathe, and nothings really coming back to me! Firstly I cannot slow speed down.Despite pulling every lever & knob speed doesnt change? Secondly the chuck/lathe appears too small to skim brake discs.If there any attachment that would allow this,or do I need a bigger lathe? Thanks in advance for any help! |
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