Here is a list of all the postings speelwerk has made in our forums. Click on a thread name to jump to the thread.
|Thread: Myford motor pulley shake.|
I should have made the taper a little less steep, 2 instead of 3deg. Niko.
Over the weekend I made an attempt to improve the pulley fitting by making a conical plug pushed in by a M6 screw in the motor shaft. It gave not the improvement I hoped for but a wobble of around 0.10 mm is good enough for me. Niko.
If you check the Myford motor drive pulley then the larger diameter of it has a shake of around 0.015 mm on a close fitting turned arbor in the lathe. It also has a good fit on the motor arbor itself but if you tighten the grubscrew that secures it on its arbor, that shake increases to around 0.25 mm which of course gives unwanted vibration. Because there is very little room the grubscrew is placed off-centre.
Has anyone come-up with an idea to improve the securing of that motor pulley on its arbor? Niko.
|Thread: Brexit No Deal - WTO duty on EU machines/tooling?|
If under WTO rules the UK charge zero duty on certain EU goods, then because of equality it also cannot charge duty on the same imports from other (non EU) countries. Niko.
Edited By speelwerk on 16/06/2020 17:00:10
|Thread: ArcEurotrade machine deliveries to Switzerland|
Certainly of topic but could not resist since it is a small pratical example of what is in store for a no-deal Brexit. Niko.
|Thread: Burgundy finish to tools with wooden handles?|
Do not know a UK supplier but Clou "bright red" is very red indeed **LINK** . Niko.
|Thread: Soldering Iron|
The new Weller irons I have also have a very stiff lead with an outer shell which develops splits when you wind it around the handle to store it. On the older ones you can replace the lead easily but with the newer it seems Weller do not want you to do that and made it a very fiddly job. Niko.
|Thread: Myford S7 Cutting Barrel Shaped Cylinders|
Using your method the newer one gives 0.02 mm and the older around 0.04 mm of indicator movement. Niko.
When I push very hard against the chuck with the dti set on the backplate I get less than 0.01mm movement. You can see hardly any movement of the indicator hand, it still has its factory setting from 1998. The other lathe from 1972 is much more used and gives a movement from around 0.01mm. Niko
Edited By speelwerk on 30/05/2020 18:17:59
You can try to see what you get if you turn a bar between centers or buy one of those ground test bars and run a DTI a long its length. Niko.
|Thread: Myford Super 7 (with gearbox) Leadscrew Removal|
It should slide off very easily. Niko.
The gear is also secured with a key therefore you have to remove the gear first and than take out the key . Niko.
|Thread: Sharpening Fine tooth slitting Saws|
As far as I can see you need shape 11V9 **LINK** . Centre Abrasifs **LINK** sells them. They can be very helpfull and once made for me a small series of grinding stones for very little money but Google gives also other suppliers for that shape. Niko.
Edited By speelwerk on 18/05/2020 12:01:46
|Thread: Cross slide dial calibrations - opinions sought.|
I remember the first lathes I stood behind (Hembrug AI and a Schaublin) were mm of the radius getting me seriously confused behind a Weiler which did mm of the diameter. Niko.
|Thread: What do you think?|
Ady1, Martin, thanks for your input. Agree that you can also exaggerate things which probably this is an example of. Niko.
Edited By speelwerk on 17/04/2020 21:39:11
I am working on a spring driven motor, the large wheel has a diameter of 200 mm. It drives a first wheel in a governor that has pinion of 14 mm diameter with 12 teeth which is a new replacement made by someone in the past. It looks nicely made and works fine with the large wheel, problem I have with it that the pinion is not hardened, probably made of a free machining steel or similar. My question; is that OK or should I make a new pinion which is hardened and tempered, what do you think? Niko.
Edited By speelwerk on 17/04/2020 18:38:11
For almost 40 years now I work from home, but it has never been with such a strange feeling as now, and this is only the begin, who know's where it ends. Niko.
|Thread: £15,000 for a Bridgeport!|
It is not only the buyer who pays commission, 15% of the hammer price for the vendor is normal. Niko.
|Thread: Mini Benchtop Lathe Dilemma|
Agree with Howard, not knowing your budget and space available but perhaps a slanted bed lathe would be more practical for you, not cheap but something like a used Hembrug Ergonomic or a Weiler Ergodur. Niko.
As alternative you can take a roll of kitchen paper and cut in half, good excuse to go to the workshop and use the bandsaw. Niko.
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