Tuesday, May 22, 2018

Spoke Design Interview

Spoke Design Mechanical Pencils

I first became aware of Spoke Design back in July 2012 when they launched a Kickstarter campaign for a mechanical pencil. The campaign was a success with 318 backers funding US $16,782. That was the original Spoke mechanical pencil, Spoke 1, and now they are onto the Spoke 4 mechanical pencil. I have recently been in touch with Brian from Spoke and thought it would be interesting to do an interview with him. Happily, Brian agreed.
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1 - So, Brian, tell us a little about yourself and Spoke Design.
I’m a mechanical design engineer and I live in Charlotte, North Carolina USA.  I have spent my whole career in new product development.  The majority of my career has been working for corporations in various industries (telcom, barcode equipment, security devices).  The bulk of my experience is actually in plastic part and product design, but I am a hobby woodworker and a very hobby machinist. I have been working full-time on my own for over a year now.  The Spoke brand is a part of the product design and development company I run with my brother Dan… aptly named Conti-Bros, Inc.  It’s a small enterprise… it’s just us two and Dan is part-time.

2 - I imagine as a mechanical design engineer you have used a pencil or two throughout your career?
Absolutely… I sketch out ideas constantly, so pencils are my preference for that.  I’ve always been a user and fan of the Pentel Sharp pencils… probably because they have been somewhat of a standard throughout the years.  I’d say I use .5mm most often… and I prefer 2B lead.

3 - Let’s quickly go through some history. Spoke 1…. Was it a case of one day you were just sitting there and thought “I want to design and make a good mechanical pencil and sell it to some people.” So you did? Perhaps though there was a little bit more to it than that, a long evolutionary process?
Years ago I was browsing online and I ran across a news article about how this new website called Kickstarter had just had their first million dollar project (a machined iphone stand I think).  I had never heard of Kickstarter or crowdfunding… when I looked up the site I became fascinated with how it could be used to find, test, or create a market for new unique products.  I had to give it a try.  My first two submissions were actually rejected by Kickstarter… they were designs for ‘active foot rests’.  As I spent so much time at my desk, I had made prototypes of these for myself to allow some ‘fidgeting’ with my feet.  Back then, Kickstarter didn’t allow ‘exercise products’ so they rejected my submissions (they have since changed their policy and others have successfully funded several similar products to what I had originally submitted).  Undeterred, I noticed a few machined pens really becoming popular on Kickstarter… so I decided I could try to see if there was a similar interest for a machined body mechanical pencil… my preferred sketching instrument.

Many of the pens on Kickstarter are simply ‘minimal’ cylinders… largely indistinguishable from each other.  My goal was to make something very distinct and immediately recognizable by its design… after lots of sketching and prototyping… I settled on long slot features to be the signature design element.  The Spoke name seemed a natural description of these features.  The project was a moderate success on Kickstarter (after all pens are a much bigger market versus mechanical pencils), and that’s how Spoke got started.

4 - Spoke 1 was obviously a success by whatever measures you personally use because you have carried on and now there is Spoke 4. What’s the one big thing you learned from the Spoke 1 campaign? By the way, what do you call the original Spoke mechanical pencil now there’s more than one?
Spoke 1, Spoke Original – I’ve called it both.  From the outset, I had planned to do versions of the pencil… the initial pencil is designated by a machined ‘dot’ on its end… so I also refer to it as Spoke Pencil single dot.
There were three big takeaways from Spoke 1 (single dot)…

First, while I can make various types of prototypes, for production quantities, I had to develop a capable supply chain for my intricately machined and anodized parts.  It’s fun creating relationships with machine shops and working together to produce cool parts.  It’s always exciting and fulfilling to take something from sketch to physical product, but volume manufacturing has its own set of challenges and learnings as well.

Secondly, the initial project provided an introduction to the Kickstarter system.  Crowdfunding is a unique process with lots of things to learn. Since the original Spoke Pencil we’ve used Kickstarter to fund several other products (most notably a brand of magnetic products under the brand of Strong Like Bull Magnets.

The third thing I’ve learned is that selling products online is quite difficult.  As a design engineer, I had little experience with e-commerce, marketing, website creation, etc.   I’ve since learned quite a bit through the years… and continue to work on this area.

5 - With perfect hindsight, what would you have done differently?
While I’ve learned a lot along the way and have definitely had some missteps… those things were part of the journey so to speak.  Overall I’m happy with the path I took.

6 - The wood turning folk have always had pen and pencil mechanisms readily available for their use. One of the intriguing features of Spoke 1 was your use of Pentel P205 mechanisms. I’m imagining you buying a few hundred Pentel’s from a local store, ripping their mechanisms out (sacrilege!) and assembling them into your Spoke bodies. Is that what actually happened? Where are you sourcing your pencil mechanisms from now?
I buy the standard pencils wholesale from a distributor.  The great thing about the Pentel P200 series is that they are readily disassemble-able.  This makes it easy for me to utilize the mechanism and also easy for customers to get ‘replacement parts’ if ever needed.

7 - Tell us about Spoke 1, 2, 3 and 4. What’s different about them? What did you learn from each and think you would like to try on the next variant? Has feedback from users influenced you much?

Spoke mechanical pencils 4 to 1
The Spoke Design series of mechanical pencils. Top to bottom, 4 to 1.
Photo courtesy of Brian
Spoke Pencil (single dot)… the original.  A one piece pencil body utilizing the P200 series mechanism.  The body is machined from aluminium, has a swooping profile with hexagonal cross section and of course the six signature slots.  There’s quite a bit of machining going on there.  It was funded on Kickstarter and now retired from sale, although I do have a few reworked pencils I sell occasionally.

Spoke Pencil 2 (double dot).  Spoke 2 was a follow up design that was more a refinement than new design. The main change was a slightly smaller profile and a bit narrower slots.  It was released on my website and not a Kickstarter project.  Spoke 2 is now retired from sale, although again, I do have a few reworked pencils I put for sale occasionally.

Then there was Spoke Inverse.  The inverse was a shift to a more simple cylindrical design, with the main feature being an inverted taper in the grip area.  Inverse was a smaller pencil altogether, using the Pentel P225 mechanism (since discontinued).  It was released on my website only.  Inverse is retired from sale, although I do have a few reworked pencils I sell occasionally.

Spoke Model 3 (triple dot).  The model 3 was a big departure in design and material. I decided to go with Titanium.  Design-wise it has a stepped profile with circular cross sections, bevelled edge slots, and a heavily grooved grip.  The model 3 proved to be quite difficult to machine… and ultimately only 100 were made.  Model 3 was released on my website… and is now sold out.

Spoke 4.  By this point I had received a good amount of feedback and requests from customers for various materials, colors, and grip sizes.  There’s no one perfect pencil configuration to satisfy everyone, but I thought it would be unique to offer a degree of customization to try and address common requests.  The solution was a two piece body design in order to provide a range of material, color, and size options to customers.  This level of customization has proven to be popular.  The model 4 is an interesting pencil in that depending on configuration it can vary significantly in how it looks and feels… many customers order 2 or 3 and mix up their order configurations a good bit.  I’ve decided to make the model 4 a ‘standard’ pencil with no plans to retire it any time soon.  In fact, I plan to add some additional colors.

8 - As you have mentioned, the Spoke 4 mechanical pencil is a pick ‘n’ mix of 5 different grips, each in 2 diameters, and 5 different barrels, so that’s 50 combinations. Which combination if your personal favourite? Is there any clear preference from customers for grip diameter, grip material or barrel colour?
I have several pencils on my desk, so I do mix up what I use quite a bit.  Overall I probably favour the smaller diameter 8.3mm grip in Titanium with a blue barrel.  The titanium moves the balance point closer to the tip while not adding too much overall weight, and the blue provides a nice contrast to the spoke grooves.  As for customers, the classic look of Titanium with a black anodized barrel is most popular.  Orders are generally split pretty evenly between the 8.3mm and 9.2mm grip diameters.  While the dimensional difference seems quite small… the result is a big difference in feel.

9 - You have offered your various Spoke pencils in 0.5, 0.7 and 0.9mm lead sizes. What has been the most popular?
The .5mm is the most popular… I’d say half of all orders are for .5mm with the remainder spilt pretty evenly between .7mm and .9mm.

10 - You have also branched out into some other stationery related items. I guess anything on your desk is fair game?
I have quite a diverse background in the types of products I have developed.  Under Spoke, I’ve done a machined ring holder and more recently a machined note holder… both on Kickstarter. While I do enjoy the challenge of working on a variety of product categories, I really enjoy working on writing instruments… and expect to keep releasing new Spoke designs going forward.

11 - Okay, well thanks for telling us this Brian. All the best for the future… so Spoke 5 is already in your thoughts?
Yes, Spoke 5 is coming!  I’m at the prototype stage and hopefully it’ll be ready to go in the next month or so!  However, the model 5 is more exploration of the spoke design… not a model 4 replacement.
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I will leave you another nice photo supplied by Brian.
Spoke pencils 1 to 4
L to R - The history of Spoke pencils to date



Tuesday, May 15, 2018

Spoke 4 Mechanical Pencil Review

Spoke 4 Mechanical Pencil Review

Long-time readers of this blog may well remember the original Spoke Design mechanical pencil from back in 2012. Well, the years have gone by and Spoke Design are now up to Spoke 4. They are still sticking to their origins of exploring designs with a spoke theme and using the Pentel P200 Sharp mechanical pencil mechanism.
spoke 4 mechanical pencils

The Spoke 4 mechanical pencil is a mix and match two piece design. You choose what combination of the two grip diameters, each available in five different materials, the five different barrel colours and the three different lead sizes you want, and Spoke assemble that mixture to make your pencil.
• Grip: 8.3mm and 9.2mm diameters
• Grip Materials: Aluminium (Anodized Black & Grey), Titanium, Brass, Stainless Steel
• Anodized Aluminium Barrel, colours:  Black, Blue, Red, Grey, Silver
• Lead Size: 0.5 / 0.7 / 0.9mm
The assembly is permanent; you cannot later undo and swap combinations around.

Learning from my mistake with the original Spoke pencil I decided to go for a nice bright red barrel. The 9.2mm stainless steel grip and 0.5mm lead seemed like the options to suit me so that’s the pencil I have. However, Spoke generously threw another pencil into the box when they sent my order, so I also have a 8.3mm titanium grip blue barrel 0.5mm pencil as well.
red and black spoke 4

Right then, first off the Spoke 4 mechanical pencil in my two colour combinations is a nice bright visually pleasing writing instrument. The black slots, sorry spokes, make a particularly nice contrast with the red bodied pencil. I sometimes thought that the bright chrome of the pencil tip did not quite go with the duller stainless steel or titanium grips, but then other times I thought I was just being stupid.

The Spoke 4 is lighter than I anticipated. The blue pencil weighs in at 18 grams and the red at 25 grams. In the hand you can notice that difference in weight, but what you really notice is the difference in balance.  The 9.2mm stainless steel grip moves the centre of gravity about 10mm towards the tip compared to the titanium. That may not sound like much but that extra weight and lower balance is definitely noticeable in the hand. The 0.9mm difference in grip diameters might also seem minor but again it is definitely noticeable in the hand. Being able to use and compare two non-identical twin pencils like these has been very interesting.
spoke 4 grip sections

The grip has concentric rings cut into it. As expected they give a positive vertical grip but allow for quick easy rotation. All bets are off though if you live in, shall we say, a hot sweaty humid environment.

Given my recent ramblings on the durability of mechanical pencils I think I should make it clear that the Spoke 4 is an all metal mechanical pencil, and in particular that the titanium and stainless steel grips are machined from solid metal. There’s no PVD coatings here, so those of you in the space game can rest easy knowing that your titanium grip will undoubtedly prove resistant to hypertrophic alien slugs and their corrosive slime.
spoke 4 titanium grip

With the mechanical pencil mechanism being taken from a Pentel P205 Sharp, the Spoke 4 has a fixed 4mm lead sleeve and so is suitable for draughting but is not pocket safe. There is also of course the emergency eraser under the push top cap.

Eagle-eyed readers will have noticed the lack of a pocket clip in the various photos of the Spoke 4.  Now, that in itself is not too much of a problem for me personally. Indeed, some pencils come with removable pocket clips to suit those who find them an impediment, but the barrel of the Spoke 4 pencil is round, and the spoke sections are depressed into the barrel, so when you rest the pencil on your desk it can roll, and there is no pocket clip to stop it. Yes, I know there is the desk dock, but that may not travel with you to the meeting room, and I prefer to just put my pencil down anywhere rather than having to specifically place it somewhere. That then is a significant negative for me. Great pencil, love the mix and match options… please stop it from rolling around on my desk.

Spoke Design have always gone the extra mile and their mechanical pencil comes with a tube of replacement erasers, a refill tube of Pentel leads and a desk dock. The dock works well and is made from acetal plastic so it won’t mark your pencil grip but will be very durable and hard wearing itself.
spoke 4 mechanical pencil and accessories

spoke 4 pencil desk dock
Spoke Design logo in the rubber base of the desk dock.

In my review of the Spoke 1 mechanical pencil I suggested a small number of minor points for improvement. This review would not be complete without revisiting those. So, back then my comments were
• This is a great pencil, be proud, put your brand name on it. I would also love to see "USA" on it too.
• Spoke 4 = Spoke yes, USA no.
• The pencil stand is a great idea and works really well. I wonder though that over time the metal on metal contact with the pencil tip section may lead to some wear on both. Perhaps a plastic insert in the stand is worth considering.
• Spoke 4 = The dock is now much larger and made from hard wearing acetal plastic.
• The edges of the hexagonal body are just a little sharp for me. Some more rumbling or perhaps some deliberate rounding in the finger grip zone would be in order.
• Spoke 4 = No uncomfortable or sharp edges to be found anywhere
• In the right light, at the right angle, with good eyesight... boy, I'm being very picky here... you can see some very minor tool marks. A little more rumbling might help.
• Spoke 4 = Picky, picky…Spoke 4 looks good, no tool marks in sight.
spoke 4 name and lead size

Overall then the Spoke 4 is a very good mechanical pencil which you should seriously consider adding to your collection.

•    Best Points – It looks great and you can customize to suit yourself.
•    Not So Good Points – It rolls when you put it down.
•    Price Range – Mid
•    Does this pencil make it into the Top 5? – No

Dimensions – Length 142mm, diameter 10.5mm body. Balance point for stainless steel grip variant about 60 mm up from the tip and 70mm for titanium grip variant.

Tuesday, May 08, 2018

Caran d'Ache Ecridor Yacht Club Mechanical Pencil

Caran d’Ache Ecridor Yacht Club

caran d'ache ecridor yacht club mechanical pencil


Those marketing folk always have to tempt us. Most weeks I get out on the water for a quick sail and so nautical themed objects have some allure for me. I like Swiss Army knives and I eventually succumbed to temptation and bought the Victorinox Skipper, and recently I gave into temptation again and got a Caran d’Ache Ecridor Yacht Club 0.7mm mechanical pencil.
ecridor and skipper
Two Swiss classics

I have previously posted about my two other Ecridors, the standard Ecridor and the Artiste. The Ecridor Yacht Club is available in fountain pen, ballpoint pen and rollerball, as well as my mechanical pencil format. These days Ecridors are palladium coated rather the rhodium coating used in the past.

The engraving on the body is what makes the Ecridor Yacht Club different from other Ecridors. The guilloche engraving features two nautical themes. Firstly a rope motif to link with yachting, and the main feature which is the wording “Caran d’Ache” engraved on the body in nautical flags.
ecridor yacht club rope motif
Rope motif
ecridor yacht club flags
Caran d'Ache in flags
ecridor mechanical pencil yacht club engraving
Ropes and flags

For those of you who are not aware of maritime signal flags, in the old days before radio, ships could communicate with each other by flying flags that had meanings. Nowadays flags are still officially used and there is an internationally agreed set of flags that represent numbers and letters so messages can be spelled out, as well as specific individual flags or combinations having a specific meaning. For example flying a black and yellow quadrisection flag means the ship is quarantined and should not be approached. Of course you may want to send private messages, e.g. instructions to your battle fleet without allowing the enemy commanders to understand your signals, so navies historically had flag codes as well, with a code book of common messages and words and the corresponding flags to fly to represent them.

I leave you then with arguably the most famous maritime message ever sent.
Signal sent by Vice Admiral Horatio Nelson, from his flagship HMS Victory as the Battle of Trafalgar was about to commence, 21 October 1805.
Image by Ipankonin - Vectorized from raster image , CC BY-SA 3.0, Link


Friday, April 27, 2018

Ohto Words SP10-A Mechanical Pencil Review

Ohto Words SP-10A Mechanical Pencil

I believe this pencil has been discontinued in the not too distant past but it’s still available from a number of retailers. So even though it is discontinued I want to review it simply because it looks so nice. Pure eye-candy. There’s just something about the way it looks that I find extremely attractive.
ohto words sp10-a mechanical pencil

The metal body is available in a number of different lustrous coloured finishes, mine, as you can see, is blue.

Weighing in at 18gm the Ohto Words is a little lighter than I expected. I feel the weight somehow does not quite go with the visual beauty and a slightly heavier construction would enhance the overall package.
ohto words mechanical pencil cap posted

Ohto Words is a capped mechanical pencil, and you can use it with the cap posted or not. Personally, when writing, I prefer the look of it in hand with the cap posted…the long sleek elegant look. The cap is a very positive push fit onto either end of the main body.

I always like to see a mechanical pencil comprehensively marked with brand, model name and number, and Ohto usually do, as they have with Words.
ohto words pencil sp10-a model number
ohto words pencil logo

The pocket clip is very sturdy and stiff, probably too stiff. You will certainly have to put in some effort to clip it to something. But its’ size, shape and colour combine with the cap section to make a truly aesthetically pleasing sight.
ohto words mechanical pencil capped

The lead sleeve is 2mm long and fixed, but of course the cap means this is a pocket safe mechanical pencil. The lead advance is a push top ratchet mechanism, operated by the rounded end piece of the main body, with or without the cap section posted on the body. Ten clicks will advance about 7mm of lead. You access the lead magazine by unscrewing the body and removing the otherwise hidden emergency eraser with lead jam clearance rod.
ohto words pencil disassembled

The grip section is rubber with fine grooves running lengthwise rather than circular around the body. The rubber grip does feel quite “grippy” so that is good, but I just hope that Ohto have used a rubber formulation that will stand the test of time rather than degrade over a decade or two. The fine grooves in the grip do catch the light and add to the appearance of the pencil.
ohto words rubber grip

I said at the beginning that this pencil is eye-candy, but is also a great pencil. It is true threat to the Throne of Sharp Kerry. Ohto Words mechanical pencil – if you like a pretty pencil, then buy one now while you still can. It's a great deal at that price point.

•    Best Points – Did I mention how good it looks?
•    Not So Good Points – The pocket clip is too strong.
•    Price Range – Low
•    Does this pencil make it into the Top 5? – This is a really tough call, but after much deliberation I have decided “No”… except for its looks.

Dimensions – Length 125mm main body only and 150mm with cap posted, diameter 8mm across the grip section. Balance point about 50mm up from the tip without cap.

Wednesday, April 25, 2018

Giveaway - Staedtler Sticks

A Series of Sticks from Staedtler.

I know a fair number of you are also interested in woodcase pencils, and I thought of you as I was organizing these for disposal. So free to a good home... well you have to pay for the postage.

Staedtler Australia closed down their wooden pencil manufacturing quite a while ago, but here's a few you may be interested in. A little stroll down memory lane for me.

The mighty Mars Lumograph.
I believe the top one is the oldest as it is gold printing, the other three are newer white printing.

The everyday Tradition
Quite the time series here. The top three have barcodes so are the newest. Note the ever changing printing - left to right, right to left, font size of AUSTRALIA, etc. The bottom one is quite different.

The economical Pacific
The top two are the newest because they have barcodes. I assume the black print is the newer of the top two, black ink must be cheaper than gold. The bottom blue and red ones have different model numbers printed on them.

The schoolyard Elephant

So, if you want them for your collection, just pay for the postage and they are yours. As a rough guide, postage to USA = USD 12, to UK = GBP 9, to Japan = JPY 1,300.
Email me, address via my profile link in "About Me" in the sidebar. I'll do a draw if more than one of you want them.

Get in quick, they ain't makin' them no more!

Tuesday, April 17, 2018

The Ravages of Time

Time and tide, they wait for no man.
The clock ticks for mechanical pencils too.

Warning – Disturbing Content. Readers of a delicate disposition may require emotional guidance and support. Please be seated before continuing on.

One thing is for sure, none of my pencils are getting any younger, and some of them are not aging well. Collectors of vintage pens and pencils are well used to corrosion, tarnishing, brassing, flaky plating and all manner of metallic ills, as well as shrinkage, cracking, hardening and so on of rubber and plastic. The moment a new mechanical pencil is manufactured it starts its journey to becoming a future vintage pencil… if it survives that long.

As well as restarting this blog I have also recently been reviewing my collection with the goal of rationalizing it to the things I really like. This review of my collection has made me realize just how much degradation is going on, and so I share with you some sad stories and sorry sights.


My first encounter with aging of a modern pencil was a while ago my Sensa Carbon Black Mechanical pencil.
After about 5 or so years in storage I noticed that the plasmium grip was deforming under the force of gravity. The plasmium gel was being dragged down by gravity and pooling on the lower side of the grip. After another few years droplets of oily liquid started to form on the outside of the grip as if some liquid was migrating through the outer skin of the grip. Eventually after 10 years or so the outer grip skin was very tacky and the gel pimples burst with gel oozing out of the little tears. Sensa had ceased business, and it’s doubtful they would accept any warranty claim after such a period, so my sticky oozy Sensa pencil went into the rubbish bin. That was a fair few dollars gone.

My next encounter with modern aging was much more disturbing.

I really liked my Lamy Dialog 1 ballpoint pen. I always meant to get around to reviewing it but never did. After about 7 years I noticed some discolouration on the body. Small dark spots, that you could feel with your fingernail. The Dialog 1 is Titanium PVD coated metal and somehow the titanium coating seemed to be corroding, which seemed implausible. Some research into PVD coatings did reveal that the thin coatings used on decorative objects like jewelry are “porous” and much thicker coatings are required for maximum corrosion resistance. I don’t know what’s going on with my Dialog’s coating, whether it’s some sort of poor metal substrate cleaning at the time of coating, coating porosity, or biological attack from a microorganism that has got into the metal structure through the so called porosity. In any event my Dialog 1 is no longer an attractive premium writing instrument. Lamy customer services have been silent.
Lamy Dialog 1 degradation
So annoying!
PVD coatings are very thin and the forums of jewelry and watches have many stories of how they wear off so I was not keen to try any metal polishes on the titanium finish, but after taking these pictures I thought, "What the heck? What have I got to lose?" So, I tried a proper metal polish on the marks. Well after several goes the marks are 99% gone. I say 99% because where most of the dark spots were there is still a tiny little speck the size of a pin prick left where they were. So small you  wouldn't notice if you weren't specifically looking with the knowledge of history. I will see if this is a long term fix or if the corrosion will grow again. So far the polishing does not appear to have affected the PVD coating.

Here’s another disappointing one that hasn’t lasted. Ten years ago when I got it, this Platinum Mistake Double Action multi pencil was white, but now it is a creamy yellow, and I can assure you it has been stored in the dark, away from sunlight and UV. You won’t be able to see them in the picture, but the lower half of the body also has two hairline cracks starting along its length.

Now for the biggie. When I started this blog I declared my dislike of rubber grips, but constant contact worked like some sort of psychotherapy and I came to begrudgingly accept them. That was a mistake, I should have stayed a hater. If you go searching the forums of camera, optics, hunting and nautical people you will come across lots of discussions about rubber coated and rubber armoured cameras, binoculars, telescopes, rifle scopes and the like, going all soft and sticky over time. Then there’s the kitchen utensil, mobile phone, IT and gaming forums… it’s a sticky gooey rubbery mess out there. I too have experienced this with my reputable Japanese brand telescope's rubber armour becoming a soft sticky mess over a 10 – 15 year period. Bushnell optics even has a FAQ for your binoculars going all sticky, and requests that you contact them. Basically with natural rubber it is a process sort of like it returning to its original latex gel liquid state, and a similar degradation process with many synthetic rubbers. Complex long chain molecules break into smaller sections, plasticizers and lubricants migrate to the surface and so on. Anyway, there’s nothing you can do about it, it just happens, although the circumstances of use and storage can affect the timescale.

Down in my mechanical pencil storage department you don’t have to look too far to find a soft sticky wet feeling rubber grip. There is a vast range of different service lives for different synthetic rubbers. From my experience, ten years seems to be about the average time for degradation becoming obvious. If you don’t see any changes after 10 years then it is probably one of the silicone or other synthetic rubbers with extremely long service lives.

Here’s two Faber-Castel Grip Plus mechanical pencils, both obtained 12 years ago at the same time, both stored side by side in the same container. Visually they look nice, but when you pick them up one rubber grip is noticeably sticky and leaves a residue on your fingers. The other is much less tacky and does not leave a residue but is clearly starting to degrade like its cousin. Of course who knows what their actual date of manufacture was.

Maries Leadholder only lasted a couple of years in my office drawer before it started becoming disgustingly sticky and I relocated it to the rubbish bin.

To be fair, most of the rubber gripped writing instruments are in the economy and low price range brackets, so the manufacturers probably only think of them as needing to last a few years, and they certainly would not be thinking about future classic vintage pencil status.

Related to this rubber issue is the degradation of presentation cases. PVC is a very common and useful hard plastic used to make all sorts of things including roof gutters, house cladding, LP records and helmets but if you add plasticisers to it, it becomes very flexible and we then often start calling it vinyl and making erasers, clothing, furnishings and so on. The thin flexible vinyls tend to breakdown over time and some seem to become susceptible to biological attack from mould. I imagine it’s related to the particular plasticisers and additives used in the plastic formulation.

Here is my Pilot KICPA case. It was very slightly tacky when I first bought it, but now things have gone further. It is still only slightly tacky to the touch, but the case is a very strong spring loaded one and you have to grip it quite firmly to open it, which means you press the soft plastic covering, and sometimes the vinyl or PU or whatever plastic it is sticks to your fingers and comes off its fabric backing.

One thing of genuine concern though is that virtually all mechanical pencils with a ratchet lead advance system have some form of lead retaining rubber ring or similar at their tip. Let’s hope that they use one of the good quality very long service life rubbers for that!

And if you think I am getting bent out of shape over all of this, at least I’m not like the old floaty pens from the 70’s or so. Virtually every one of them I have seen in real life is bent to one degree or another. Releasing moulded in stress over time… all those floaty ships, cars and beautiful ladies… all warped.