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Member postings for Steamer1915

Here is a list of all the postings Steamer1915 has made in our forums. Click on a thread name to jump to the thread.

Thread: Fusion 360 Whitworth Threads
22/01/2021 09:53:46

Hi Chris,

Could you send me a PM please?

Best regards,

Steve.

Thread: Gear Supplier - special
06/10/2020 10:05:23

Pressure angle?

Steve.

Thread: Tempering and Gear Cutting
24/07/2020 10:07:11
Posted by Peter Howell 1 on 24/07/2020 09:47:37:

Right.

So if I'm going to make a gear how to I know what pressure angle to use for the job in hand?

Is it all down to experience or are there some specified design criteria ?

LINK was an interesting post about a month ago.

Best regards,

Steve.

Thread: Fusion 360 Whitworth Threads
20/07/2020 11:51:20

Mike,

I have found the XML document for the BSW threads. Not sure if this works for BSF as well, the thread form being the same, just the difference in TPI. I don't know how to upload them here but I have your email address and will send you them that way, along with the BSP+Nonstandard Threads file. Not sure what's in the latter without checking.

How to upload an XML document to this site? Anyone?

Best regards,

Steve.

20/07/2020 10:01:56

I'm sure I have the Whitworth and BA threads somewhere. Give me a while and I'll try to find them.

Be aware though that every time Fusion 360 updates, they seem to be thrown out and you need to re-load them.

Steve.

Thread: Graham Meek’s Tailstock Dial - MEW279
23/05/2020 11:11:36
dsc01919.jpgdsc01709.jpgdsc01704.jpgPosted by Martin Kyte on 23/05/2020 10:31:31:

No, I've got a planing fixture and it takes about 20 mins to index round so it's quicker in the end.

regards Martin

I'm with you on this Martin. When I make a batch of Graham's Saddle dials, I use a rig where the slotting head drives a rotary table via a seven tooth ratchet wheel. Each dial takes around 7 mins and the "knurl" is perfect everytime. The dial on your lathe was done exactly like that. There are 504 "teeth" if you care to count them. I shall use a similar rig when I get around to making the tailstock dials. I have made a 6 tooth ratchet for that job - that produces a very similar pitch to the saddle dial even though the diameter of the knurled diameter is smaller.

Best regards,

Steve.

 

dsc01703.jpg

Edited By Steamer1915 on 23/05/2020 11:13:30

14/05/2020 18:10:44
Posted by Martin Kyte on 14/05/2020 13:59:53:

So thats the Tail Stock Topslide and Saddle taken care of. (The Saddle is Graham Meek supplied). All I need now is to make George Thomas' Cross slide modification with a sensible sized lockable micrometer and I'm sorted. Who needs DRO's on Lathes.

I believe you bought the Saddle Handwheel from me at Harrogate in (believe it or not) 2014.

My best regards,

Steve.

14/05/2020 13:14:49

Nice work there Martin.

Steve.

Thread: Eagle Surface grinder - who here uses one?
03/05/2020 10:08:27

Love the de-mag on the top there.

Thread: Clarkson autolock help
29/04/2020 09:51:52

I'm sure we have been here before but you should not back off the nut (not even an eighth of a turn) before screwing the cutter home against the centre point. There must not be a gap between the nut and the body. The cutter will self tighten depending on how high the cutting forces. The cutter will not screw into the body any further when it does this. All that happens is that when the cutter turns, it forces the collet downwards into the taper of the nut and this in turn increases the grip on the cutter. If you have a gap between the nut and the main body, you will most likely (especially on the 6mm or 1/4" shanks) break out the centre in the end of the cutter when the nut is tightened.

(dons tin helmet)

Steve.

Thread: Graham Meek’s Tailstock Dial - MEW279
27/04/2020 08:40:53

That looks good Brian,

It might be to your advantage to fill the lines and numbers with black paint.

Just a thought.

Best regards,

Steve.

25/04/2020 20:32:21

Nice work there Brian,

Let's see a picture of it on the tailstock!

Steve.

Thread: Fake Mitutoyo indicator on Ebay
25/04/2020 09:10:10
Posted by Barrie Lever on 23/04/2020 10:32:36:

I checked the indicator on my granite table with tungsten slip gauges (all bought off of Ebay and absolutely superb quality) going from 20mm slips to 20.1 I could already see errors, probably OK for someone like SOD Dave as an exponent of near enough is good enough but the indicator is not staying in my workshop.

What sort of errors were you seeing? Were they cosine errors that you would see when using the stylus at angle? A pear shaped stylus would reduce these errors.

Link

Steve.

Thread: ML7-R tumbler gears
19/04/2020 11:26:02

Social distancing in the workshop gave me the opportunity to make a batch of these gears.

More pictures in the album showing the process.

Material is Tufnol Whale brand.

DP is 20

Pressure angle is 20 degrees

OD 30T = 1.600" 28T = 1.500"

Very pleased with the results.dsc02525.jpg

Best regards,

Steve.

Edited By Steamer1915 on 19/04/2020 11:31:41

Thread: Essential and non-essential workers lockdown rules
09/04/2020 13:29:53

There has been a lot in the media lately about the police taking a heavy handed approach when “enforcing the lockdown rule”.

I was listening to Radio 5 yesterday and there was an interesting call from a self employed tradesman who had been reported by the neighbours of the person whose house he was working at. I gained the impression that he was laying a block paved drive or something similar. He stated that he was observing all the social distancing measures but that the police had stopped by and told him that he had to stop work because he was not an essential worker and if he continued, he would be prosecuted. The chap duly stopped work, made the site safe and returned home. All good so far.

Those of you that know me will be aware that I have a workshop that is about four miles away from my home and that I make dials and other accessories for the model engineering fraternity.
Whilst I would never class myself as a key worker, I have carried on as usual, based on the fact that a) I travel alone in the car and b) I work alone in the workshop.

What is the point of all this? Well, it’s this:-

Another caller on the aforementioned radio programme mentioned that the original advice given at the start of the lockdown (and subsequently emailed to police forces country wide) was soon afterwards edited and is now different to the common (mis) conception about key workers.

Pasted below are the relevant paragraphs from the government website

LINK

6. How can I find out if my work is essential or not?
The government is not saying only people doing “essential” work can go to work. Anyone who cannot work from home can still go to work.

Every worker – whether critical or not – should work from home if they can but may otherwise travel to work.

I’m taking that to say my common sense approach is not breaking any guidelines or laws. I intend to print a copy of the relevant paragraphs and carry them with me in the car.

Please feel free to share this information. It may help someone who is unsure.

Steve.

Edited By Steamer1915 on 09/04/2020 13:31:15

Edited By Steamer1915 on 09/04/2020 13:41:57

Thread: Graham Meek’s Tailstock Dial - MEW279
08/04/2020 11:48:15

Martin,

PM sent.

Best regards,

Steve.

Thread: Myford Super 7 Lead Screw Not Turning
08/04/2020 09:54:51

Bill,

Are all the teeth still on the tufnol tumbler reverse gears. Just a thought...

Best regards,

Steve.

Thread: Doncaster ME Show.
02/04/2020 09:58:29

John,

Whilst you may well be right, I don't think you should be posting that the show is definitely cancelled.

Wait for an announcement from the organisers.

Steve.

Thread: Fusion 360 Licence Changes
09/10/2019 18:45:08

I gave up trying to change my account, mainly due to the online advice that Dave has alluded to. Seems that I'm not the only one that has ended going round in circles. What's your secret Dave?

Steve.

Thread: Making High Speed Steel Injector D Bits
17/06/2019 19:03:40
Posted by Andrew Johnston on 17/06/2019 09:30:28:

It's interesting to note that the tables on my grinders are not constrained, just resting on the ways. So in that sense they're not particularly rigid. Grinding forces are low and accuracy comes from the geometry and linearity of the ways and the runout of the spindle bearings.

.

Andrew.

If you are grinding between centres, the centres should not rotate. This removes any inaccuracy created by the spindle bearings.

Steve.

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