HH Grinding Rest – Finished!

[TerrydParticipant @terryd72465]

Hi Chris,

 

Posted by chris j on 13/09/2012 18:22:21:

Posted by chris j on 11/09/2012 21:16:59:

Posted by Harold Hall 1 on 07/09/2012 09:13:53:

…….Do hope ChrisJ that you find the book useful. If you do decide to make the grinding rest then have a look at these web pages, One modifications listed that is easy to make and definitely worth doing is to make the side arms (20) thinner. The web pages explain why and I see that Wolfie has done this………….Harold

Hi Harold

I have the book now and am finding it interesting.

I have spotted two strange symbols on your drawings one is a pair of circles (one within the other) and the other a small trapezoid (to the right). What do these mean please.

……………………………..

Any chance of a steer on this guys ?

Hi,

The 'two circles' and 'trapezoid' are the standard symbols for indicating the drawing layout of the different views, i.e. first angle or third angle. Imagine the 'trapezoid' is a tapered cork and that you are looking at it. That is how the drawn views are oriented.  It can make a great difference as to how the drawing is read.

 

First angle Ortho (as previopusly used in the UK) –

 

 

Third Angle Ortho as is normally used now (aka 'American' layout) –

 

Terry

Edited By Terryd on 13/09/2012 21:51:08

[ZiggarParticipant @ziggar]

Posted by Tony Pratt 1 on 13/09/2012 21:40:44:

Hi Chris, would you also like Harold to cut the material and deliver it to your house? Sorry if I am being a bit rude!

Best wishes,

Tony

plans drawn by other people contain a list of materials needed so I dont think its too much to ask

 

 

 

 

Z

 

 

Edited By Ziggar on 13/09/2012 22:05:02

[chris jParticipant @chrisj]

Posted by Tony Pratt 1 on 13/09/2012 21:40:44:

Hi Chris, would you also like Harold to cut the material and deliver it to your house? Sorry if I am being a bit rude!

Best wishes,

Tony

I thought this was the beginers section where no question was too stupid.

My mistake, I am looking to make what is a big task (for me) a little easier.

[chris jParticipant @chrisj]

Posted by Terryd on 13/09/2012 21:46:24:

Hi Chris,

Posted by chris j on 13/09/2012 18:22:21:

Posted by chris j on 11/09/2012 21:16:59:

Posted by Harold Hall 1 on 07/09/2012 09:13:53:

…….Do hope ChrisJ that you find the book useful. If you do decide to make the grinding rest then have a look at these web pages, One modifications listed that is easy to make and definitely worth doing is to make the side arms (20) thinner. The web pages explain why and I see that Wolfie has done this………….Harold

Hi Harold

I have the book now and am finding it interesting.

I have spotted two strange symbols on your drawings one is a pair of circles (one within the other) and the other a small trapezoid (to the right). What do these mean please.

……………………………..

Any chance of a steer on this guys ?

Hi,

The 'two circles' and 'trapezoid' are the standard symbols for indicating the drawing layout of the different views, i.e. first angle or third angle. Imagine the 'trapezoid' is a tapered cork and that you are looking at it. That is how the drawn views are oriented. It can make a great difference as to how the drawing is read.

First angle Ortho (as previopusly used in the UK) –

Third Angle Ortho as is normally used now (aka 'American' layout) –

Terry

Edited By Terryd on 13/09/2012 21:51:08

Thanks Terry

[David Clark 13Participant @davidclark13]

Hi There

No question is too stupid if you don't know the answer.

We all have to start somewhere.

regards David

[Tony Pratt 1Participant @tonypratt1]

David & Chris, I totally agree that this is the beginners section and also that no question is too stupid if you don't know the answer.

Regards,

Tony

[Tony Pratt 1Participant @tonypratt1]

To Chris and all beginners. Regards buying metal etc. for a project it is a good idea to buy lengths[12"] of the standard sizes required and you will soon build up your own supply of the more common materials on hand raedy to use.

Best wishes,

Tony

[Harold Hall 1Participant @haroldhall1]

First I must apologize for not having contributed recently to this thread but a failed router and then my purchasing the wrong item has resulted in me being off line for a almost a week.

Jason U Many thanks for your comment, much appreciated.

Chris J Your question regarding the symbol on my drawings has been well covered so will not comment more on that.

With regard to material lists, I did, as you probably know, write for MEW over a period of just over 20 years. During this time I never provided material lists as it was not a practice of the magazine, though very occasionally an article would appear with one. Probably no more than ten over that time. Again, like you, a request for material lists would surface, but again contributions to Scribe a Line show that it has been infrequent. For my books I followed what I considered to be accepted practice in the magazine.

You mention that you would like a list as you are lazy, I am sure you meant this in jest. However, studying the drawings for any project is something that one must not be lazy about. One should study them in detail until one is confident that they are fully understood and knowing how the parts fit together. Also, looking for any obvious errors or omissions. I think my drawing stand up well in that respect but errors are not unknown.

During this very lengthy process, then adding a few minutes to jot down the materials required will be insignificant and help with the process, and, as Tony states, you should order your materials in longer lengths. In any case, you will probably have to often as you will not find a supplier who will, typically, sell you 55mm of 12mm diameter.

Because of this, you will develop a stock which for future projects will need checking before placing an order. Also, you will find, that if a very small piece of material is require of a size not available in the workshop, it is probable that it will be machined from a larger piece. This being what I do.

Ziggar You mention that other people provide material lists, I would like to know who, and for what craft/hobby. I occasionally also write for woodworking magazines, not your DIY versions but cabinet making.

In these material lists are common but not as such, but as cutting lists, as hardwood only comes in standard thicknesses but with random widths and to some extent to lengths. This being because hard woods are expensive so it would be very wasteful to cut boards down to a given width. These articles though rarely come with detail parts drawings but only a dimensioned assembly drawing. The maker therefore has to decide on such things as lengths widths and positions of mortice and tenons etc. In this case the cutting list is just that and not a list of materials to purchase.

Chris J You make the comment on this being a beginners thread and raising these types of questions is OK and I totally agree. This does though give me a option to comment on a situation that I often find disappointing. That is, a beginners question often gets hijacked by comments of a much more technical level, leaving the beginners items buried amongst them. This making it difficult for the original questioner.

I am not suggesting that this is deliberate but contributors should I feel consider this and start a new thread, perhaps with a link to it in the initial thread, Just a thought.

Harold

[chris jParticipant @chrisj]

Posted by Harold Hall 1 on 15/09/2012 19:43:51:

With regard to material lists, I did, as you probably know, write for MEW over a period of just over 20 years. During this time I never provided material lists as it was not a practice of the magazine, though very occasionally an article would appear with one. Probably no more than ten over that time. Again, like you, a request for material lists would surface, but again contributions to Scribe a Line show that it has been infrequent. For my books I followed what I considered to be accepted practice in the magazine.

You mention that you would like a list as you are lazy, I am sure you meant this in jest. However, studying the drawings for any project is something that one must not be lazy about. One should study them in detail until one is confident that they are fully understood and knowing how the parts fit together. Also, looking for any obvious errors or omissions. I think my drawing stand up well in that respect but errors are not unknown.

During this very lengthy process, then adding a few minutes to jot down the materials required will be insignificant and help with the process, and, as Tony states, you should order your materials in longer lengths. In any case, you will probably have to often as you will not find a supplier who will, typically, sell you 55mm of 12mm diameter.

Harold

Thanks for that H

I have just spent a couple or three hours going through your drawings and getting an order together. Some things were easier to work out than others but I think I got there in the end.

You'll be please to know I rounded everything up some, I should have some spare to start a stockpile.

Chris

[Sub MandrelParticipant @submandrel]

Chris J,

Use Google to find your local metal stockholder. Suras eggs is eggs they will have some shelves with 'short ends' on and maybe even a 'model engineer's corner' with smaller or unusual pieces. If tehy are any good all of this material, even though it is offcuts, will be labelled so you know exactly what it is.

Heading along to soemwhere like this witha hefty bag and £40-50 is a good way to stock up on a good range of decent sized chunks of larger metal if you don't have an existing stock box.

For the smaller sizes (up to 1" diameter) order some varies stock packs from advertisers in ME. These are at a reduced cost and include a good range of stock sizes, usually in 12" lengths.

Neil

[chris jParticipant @chrisj]

Thanks for that tip Neil

I was just going to email my list to some of the forum advertisers

Chris

[Harold Hall 1Participant @haroldhall1]

Chris

In addition to MK Metals who advertise on the forum, do also try M-Machine who supply to the home workshop and like MK have a very wide range of material types and sizes. The used to advertise on this page I think but cannot see it now. They regularly advertise in MEW.

Email [email protected]

Web http://www.m-machine-metals.co.uk

Harold

[ZiggarParticipant @ziggar]

Hi Harold

**LINK**

and

**LINK**

are just some of the ones ive seen on my travels

Z

[Harold Hall 1Participant @haroldhall1]

Thanks Ziggar for the links and agree that these two do quote material sizes and hardware, I do myself always list the hardware, screws nuts etc, but not the raw materials, As I said, not listing raw materials in has been standard practice which I have followed. Perhaps you should aim your request to David C though as complaints about its absence have been minimal it will have very little leverage.

For my part I am probably too old (79) to change my ways.

Harold

[chris jParticipant @chrisj]

Ok guys,

I've got a couple of replies to my quote list about the surface of the steel.

Would I order in bright or just the normal black.

I'm guessing to make the grinding rest that black would be ok and skim the surface with a milling cutter ?

Chris

 

 

Edited By chris j on 17/09/2012 15:02:17

[MetalhackerParticipant @metalhacker]

Hi All,

In point of fact Harold you did publish a list of materials for all the later projects in Milling : A Complete course. The MEW article on the boring head which I am currently making has a list of all the materials which you will cumulatively need for the boring head, dividing head and toolrest. It is not however repeated in the book. So if you use Harold's MEW index you should find the aricle and hence the list.

BW

Andries

[Harold Hall 1Participant @haroldhall1]

Thank you Andries, I had forgotton that. Of course, at the time (2003) the magazine was less frequent and I did not want readers to purchase material for the first only to find when the next project surfaced that they needed to purchase more of the same sizes, especially as they are in some case quite large sizes. This was one reason that I designed them using the same sections.

In the case of the book the reader can, having all projects to hand, chose which are to be made and purchase accordingally

Hope the boring head goes well and proves useful

Harold

[jason udallParticipant @jasonudall57142]

As to a bom or shopping list..for a designer (shudders as image of pony tailed "creative" comes to mind) or "author" of a design , to be able to specify the materials list. he or she would need to make assumptions about the customers work holding requirements/limitations..

I see shopping lists for electronic projects almost always but in ME field it is not quite the same…lengths could only be minimums .

I can see both sides of this.

I actually find the process to be rewarding and part of the anticipation prior to the metal chopping proper…all part of the fun..just my experience…

Maybe "beginers" projects have a GUIDE list?

Regards

[Author]

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