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Member postings for ega

Here is a list of all the postings ega has made in our forums. Click on a thread name to jump to the thread.

Thread: Cannon or Carronade?
06/12/2019 14:14:09

Brian G:

I have a Victorian hole-in-the-wall letterbox. Do you happen to know whether Carron were the sole makers? I would be glad to know the provenance of my letter box.

Thread: Chris Heapy website/archive
06/12/2019 12:01:12

David Davies 8:

Your avatar seems to be on a PB?

Thread: Cannon or Carronade?
06/12/2019 11:58:34

Quite a bit about these in the Aubrey/Maturin novels.

I believe the foundry also made domestic items - swords and ploughshares!

Thread: Breaking bandsaw blades
04/12/2019 17:01:11
Posted by Brian Wood on 04/12/2019 13:01:06:


I tension my blades to get a musical note on the long length down the back of the bow. A 'thud' is no good nor are notes in the high violin range.

There are numerous mobile apps which might help in finding the right pitch in between.

I have my own H&V saw set up so that one turn of the tensioning screw takes the blade from relaxed to correctly tensioned. This action is always coupled with turning the power (at the wall) on or off as appropriate which helps to avoid starting untensioned; as you rightly say, running untensioned will cause problems but I am not clear whether relaxing the blade actually helps to prolong its life.

04/12/2019 11:49:50

Gray:

I assume that in use the device is clamped to the blade and a side load applied to the latter?

This is slightly reminiscent of the spoke tensiometers used by some cycle wheel builders; those with an ear pluck the spoke and note the pitch of the sound produced.

Clive:

Thank you.

I did try 3/8" blades for profiling in the vertical mode but my impression is that these small flanged-wheel H&V saws are really intended for 1/2" blades. Like the others, I have had good results from the Tuff Saws product and not yet had to take advantage of their re-welding guaranty.

Thread: Nuts
04/12/2019 11:25:11
Posted by Hopper on 04/12/2019 09:15:07:
Posted by ega on 04/12/2019 09:07:03:

Does anyone know the actual result of a tall and heavy vehicle hitting the bull bar at speed?

Given the bullbar is made of half-inch steel plate and upwards, and truck bodies are a thin aluminium skin over a flimsy aluminium framework, take a guess.

 

In your hypothesis, no doubt the result would be like the "top off the double-decker bus" mentioned above. Martin Connelly's post is more like what I had in mind and I look forward to seeing his photo.

That said, Michael Gilligan's link suggests that multiple strikes don't necessarily disable the bridge.

Edited By ega on 04/12/2019 11:32:10

04/12/2019 09:07:03

Does anyone know the actual result of a tall and heavy vehicle hitting the bull bar at speed?

Thread: Breaking bandsaw blades
04/12/2019 09:02:21

Brian:

Thanks for your continued interest. I will try the wire test. I don't think you specified the kind of wire you use - I did think of using fishing line - but no doubt the workshop will yield something suitable.

I am reminded that the American TV series "The Wire" had the reputation of being largely incomprehensible and, at the same time, totally addictive!

03/12/2019 23:22:23
Posted by Clive Foster on 03/12/2019 19:27:51:

...

The brutal blade twist between wheel and guide really doesn't help nor does the seriously sketchy blade downfeed pressure controls.

...

Do you think it worthwhile to set the top guide as close as possible to the work so as to minimise the twist (or maximise the length of blade over which the twist occurs)?

03/12/2019 23:14:26

Brian Wood:

Thanks for taking the trouble to elaborate.

03/12/2019 15:04:07

Brian Wood

I, too, would welcome elaboration of the stretched wire method.

Thread: Lathe annoying 50Hz hum
02/12/2019 11:06:25
Posted by Howard Lewis on 02/12/2019 10:18:39:

Have not read through all of the foregoing.

Would expect a PWM to produce a high frequency hum, which varied according the speed setting; so not that.

F W I W my Warco Economy Mill/Drill developed a 50 Hz hum.

It was coming from the F / R NVR switch. Having removed it, could find no fault. Refitted it, and tightened the securing screws down hard. No more hum - slack screw!

So it may be no more than something which is vibrating because the fixing is not tight enough.

Howard

I am often "guilty" of not having the time to read the whole of a lengthy thread before posting. CTRL-F sometimes helps but is there a better way to avoid duplication, etc?

My Taiwanese horizontal/vertical bandsaw recently developed a noise which turned out to be from the start capacitor rattling in its housing (it had been glued to the motor casing).

Thread: Myford Super 7 - paraffin to clean leadscrew question
02/12/2019 10:44:32

Did anyone mention the use of a pipe cleaner bent into a U and hooked over the rotating leadscrew?

I am grateful to smokers for this possibility and, of course, for cigarette papers.

The Woodbine was intentionally small so as to be smoked during a tea break.

Thread: SIP Variable Speed Floor Drill Press
29/11/2019 11:31:59

At first sight the low speed seems far too high and I wonder whether the pulleys could be changed to mitigate this.

I was under the impression that SIP products were not readily available other than to the trade; where could one get a look at them?

Thread: MEW 288 Readers Tips
28/11/2019 11:22:34

And with some suitable packing the work could sit directly on the table.

Thanks to GH for an excellent suggestion.

Thread: ARC Catalogue No.11
28/11/2019 11:11:23

I dipped into mine in the bath last night - as ever a good read and beautifully produced; no doubt the idea is that it won't be lightly discarded along with the junk mail.

If John Stevenson failed with the stub drills then I clearly have no chance!

PS I wasn't quite clear whether the 127 gear comes as standard with the SC4?

Thread: Acme thread
27/11/2019 22:38:05

The comparisons of ease of tapping suggest one possible advantage of the reviled standard Myford nuts; better to have to replace a relatively cheap component than the expensive leadscrew?

Thread: 'Bristol Handles'
27/11/2019 15:15:19

The WDS product looks excellent. However, I have just bought some well-priced handles from Axminster which seem perfectly fit for purpose.

I generally buy the female version since they can readily be used to produce custom male versions.

I think WDS used to sell BSW threaded but no longer do so.

Thread: Acme thread
27/11/2019 14:29:18
Posted by IanT on 27/11/2019 10:20:08:

I'm not going to jump into any Square/Acme/Size of Material discussion here Shaun - just wanted to support Hoppers statement (warning) that 'tapping' an Acme tread is not as simple as just buying a single Acme tap and drilling a suitable hole. I think you will find it is very hard (if not impossible) to turn it.

I was surprised by this as I recently had no difficulty in tapping a length of cast iron 1/2" x 10TPI acme. I should add that this was done under power and the tapping hole was slightly oversize. Other materials may well be problematic, of course.

Thread: ARC Catalogue No.11
26/11/2019 14:11:35

I'm hoping the new catalogue will include stub drills.

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