Here is a list of all the postings Philip Burman has made in our forums. Click on a thread name to jump to the thread.
Thread: Boley 5lz collets |
31/01/2014 10:12:03 |
Hi Roman, Email sent. It's 21mb. If it's too large I will send it as several mails if you let me know you maximum file size. Phil |
31/01/2014 00:44:09 |
Hi Roman, I'll have a go on Saturday. Phil |
29/01/2014 14:33:38 |
Posted by RK 2014 on 10/01/2014 15:38:10:
Hi guys, I also have Boley 5LZ, which I bought recently and I am restoring it now. Could someone of you help me please to get the main dimensions of the tumpler gear, which is misssing on my lathe? I intend to manufacture a replacement of it. Also a photo could be also helpful. Thank you, Roman
Hi Roman, do you intend to make an identical copy or something that is just functional. Phil |
29/01/2014 13:39:39 |
Hi Mike, seem to be lots of people turning up with 5LZ's. We will soon out number the Myford 7's. Well maybe not this week. Yes the a12 collet, better known as 358E, fits directly into the spindle, the is no adaptor. Out of curiosity what does the end of your drawbar look like? Phil |
Thread: M&W Micrometer Stand for £11.40 |
09/01/2014 11:02:44 |
I recently bought the Mitutoyo equivalent for £40 !**?11¤¤#" Phil |
Thread: What chance have we got? |
12/02/2013 22:33:28 |
Posted by A Smith on 12/02/2013 21:57:14:
You can tell there aren't many rural types on here. Tractor driving at that age was quite common with my contemporaries. After all, if you're too small to lift a bale, you have to find something else useful to do when the grass is comming in. There's not many living in this century either. To day in the West it's illegal. If you got caught you would go to jail for child abuse.
Phil |
Thread: Is an old lathe worth bothering with ? |
12/02/2013 20:58:33 |
This question has been asked and answered a million times. Old iron from the West or new iron from China. The answer, in this case, and as always, is the same - define your description "lovely" and "the quality is superb". Does this mean a nice paint job or that the ways are unworn and the spindle has no backlash. If the answer is the former then there is no difference. If the answer is the latter then (subject to a photo review) buy, buy, buy.
Phil |
Thread: What chance have we got? |
12/02/2013 20:43:23 |
If you want to be a digger driver in China and have a big mortgage and hungry family - none. What do you think the little buggers' chances are of becoming an investment banker. As has always been the case when picking a career, check were the money is and who's the competition.
Phil |
Thread: Combined Mill/Lathe |
03/02/2013 12:28:10 |
Of course every machine tool has limitations, and a person should or must work within them. Trouble is there comes a point where the bar is set so low that what should be a joy becomes nothing but a frustration. Unfortunately there is no universal number for the correct height of the bar, you pays your money and makes your choice.
Phil |
03/02/2013 00:26:40 |
Golmatic looks like a credible combo alternative: UK dealer and prices here. Sit down before you open the price list:
Phil |
Thread: Boley 5lz collets |
30/11/2012 19:20:09 |
Hi Putney man, how is your Boley 5LZ going.
Phil |
19/04/2012 09:02:26 |
I think you need to look into the issue of the digital phase converter very carefully. You will lose lots of functionality with a DFC connected directly to the motor. One of the key lathe functions is the "instant" 4 times speed reverse when threading. This makes threading without disengaging the half nuts a piece of cake. For this to work you need the electric clutches and brake to be working together with the electric switching. I think you should consider a rotary phase converter as your base case. I've just had a thought that if your machine is for the UK market maybe it's imperial and you have a threading dial. Some photos would be interesting to see. I am very pleased with mine. I have zero experience with machines of this quality but it is all I expected and some. It's extremely rigid and precise. I attempted to test the brochure claim that it is impossible to get it to chatter. I tried the maximum DOC (16mm) in mild steel that my carbide cutter would allow. It passed the test like I was taking a finishing cut. Also when you dial in a DOC that's what comes off every time, no more no less. I'm not sure what you mean by reverse gear. I did have some noise issues with the 4 times speed reduction gear (when in reverse) but that was largely me being over sensitive. I've given up trying to eliminate it (for the moment). The spindle oilers are a pain to set to the right rate as there is no feedback on the actual "drip rate". The as supplied QCTP is limited in functionality as the bottom edge of the tool holders sit lower than the top face of the top-slide. This prevents rotating the tool post to achieve the desired angle. This means you need lots of extra tool holders, which of course are none existent. I replaced the whole thing with a Multifix type A. Because of the relatively high height of the top of the cross-slide the Multifix is limited to 12mm square cutting tools if you want to retain the 40 position capabiity. You can of course mount 20mm square cutters directly on the cross-slide when more umpf is needed. I also fitted a 2 axis Newall DRO.
Phil |
18/04/2012 14:22:25 |
I was lucky with the house, I had 400V 3 phase at the meter so I ran a cable into my workshop/garage and, as the lathe was 230V 3 phase (it's not dual voltage) I have a 5kw three phase transformer to step it down. The garage is also insulated and has under-floor heating, which makes things very cosy. I did some reading on phase converters and even bought the parts to build one (before I bought the house). What voltage is your 2 speed motor.
Phil |
17/04/2012 21:51:49 |
I also have a Boley 5LZ. The collets are 358E, also known as W23. The cheapest source in Europe is here: http://chinamarkt.de/html/product_info.php?products_id=1314&osCsid=429173d54e20c4e5816d92367bbd2f79 I bought a number of them a year a go. They are Chinese but very precise. However 2 or 3 had incompletely formed threads. It was easy enough to mount them in a 4 jaw independent chuck and run the lightest of skims to clean up the thread. Phil |
Thread: Small Gear Cutters |
28/09/2011 21:03:20 |
I have had several goes at making the cutters using Art's Gearotic programme. Cutting the involute on the cutter works great but the rest of the geometry leaves you with a weak cutter. I've managed to break 3 without cutting as many gear teeth. The main problem is that the cutter has constant thickness and this thickness cannot be greater than the width of the gear root, which for small module gears is a fraction of a millimeter. Art's working on it and I'm sure he will get there in the end. My conclusion, for what it's worth, is that he should use the gcode to produce the involute profile on a flycutter. We will see.
Phil ![]() |
Thread: Disappearing posts |
13/09/2011 19:02:07 |
Did a number of posts disappear from the Hmmm Myford Mod for 3000rpm... thread or have I miss something.
Phil ![]() |
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