Showing posts with label musings. Show all posts
Showing posts with label musings. Show all posts

Tuesday, August 2, 2016

How you work determines how you think.

We've all heard it:  "When all you have is a hammer, everything looks like a nail."  It's sort of true, though.  One thing I've realized as I worked more with hand tools, and which I've mentioned before, is that a lot of things are simpler.  Not necessarily easier, but simpler.

I was just reading someone's blog posts about making a "Milkman's Bench", and they were talking about needing to be sure the grooves they milled for the tail vise were exactly 1/2".  "Why?", I thought.  "Just cut the tenons on the moving part once you've done the grooves, and the exact size won't matter at all!"  Except that's harder with power tools.  If you're cutting your tenon with a dado stack, you need to know exactly how high to set the blade, or you'll run into trouble.

In a different post, they were thickness planing to make sure that the pieces were exactly 1 5/8" thick.  "Why?", I asked myself again.  Well, because the parts are being made from a cut list.  If you're cutting everything from a list, then doing assembly, it's a lot easier to make sure everything is identical before you start doing assembly.  In non-machine work, it's kind of irrelevant what the actual size of any of the parts is, because it's trivial to just size each piece to fit the one before.  Maybe you end up at 1 11/16", or 1 7/8", but it doesn't really matter.

For me, it's now easier to treat dimensions as a guideline, an ideal that I don't really need to achieve unless I'm building a piece of furniture to fit a specific space.  Other than that... So what if I'm a few sixteenths off? I'm going to plane everything flush when I'm done anyway.

Now, please don't get me wrong.  This isn't a condemnation of power tools, or a statement that people are in some way "wrong" for building to exact dimensions.  If you're using power tools, it really is a better/easier way to work.  I think a lot of hand tool workers would be baffled by the idea of cutting everything to exact tolerances, and the power tools folks would be baffled by our failure to measure anything precisely.  Neither way is better.

The point is that the tools we use determines how we think about things, and how we approach problems.

Thursday, February 25, 2016

Design Notebook: A New Bench

Another "thought exercise" sort of post.

Background & Purpose

One of the projects I've been (slowly) working on is clearing my garage to a point where I can use it as a shop.  It's going to take some time, since I'll also have to insulate it, but I've made a start.  One thing I've recently started giving serious consideration to is the bench.  What I'm using right now is roughly two feet deep by four feet long.  It's great for the space I have, but if I'm going to have more space, I want a larger bench.

I've been going back and forth on this internally for quite a while, and it may happen again, but I think I've figured out roughly what I want.  My two initial impulses were an English-style bench, with a wide apron and nothing underneath, or a Shaker style bench, with lots of built-in storage.  I think I've settled on the Shaker type, largely because I like the way they look.  The other advantage is that I know from experience that I'll keep piling things under my bench until any open space is full, and a Shaker bench will at least force me to get things somewhat organized.

Requirements

What I've thought about so far:

1) Weight.  It needs to be heavy to stay still, and shouldn't need to be moved within the shop very often.  A Shaker bench is good for weight, given the drawers.  However, I'm sure I'll move house again, so it should be possible to either break it down or somehow make it, if not portable, then at least moveable.

2) Tail Vise.  I'd like a tail vise of some sort... I'm leaning towards something like this, which seems to be the new standard.  It should be both more solid and easier to build than a traditional vise, and more useful than a wagon vise.


3) Front vise.  I'm torn on this one.  I love my leg vise:  If I were doing it again, I'd build it out of something harder and stiffer than pine, but using it is great.  On the other hand, it does have some shortcomings.  I'd really like to try a shoulder vise, which is something that would fit a lot better on a large bench than my little one.  What I'll likely do is build up a shoulder vise and attach it with Timber Lok screws, which would certainly provide enough strength to keep it stable.  If I end up not liking it, I'll either install a metal quick-release vise or another leg vise.

4) Holdfasts.  I'm not willing to give up my holdfasts, so I'll need to leave a gap under the benchtop.  The top plus the gap needs to total about 7", which is quite doable.  I'd like to shoot for a 3" top with 4" underneath.  I'll probably leave that space open, since it's not ideal for storage, and hang a shelf over the bench for the things I store there now.

5) Board jack/sliding deadman.  One of the things I dislike on my current bench is trying to support long pieces of wood.  I'd originally planned to replace it with an English-style bench with an apron, but I think I like the idea of the board jack better.  It will also leave some space for...

6) Storage.  I'm torn on this.  On the one hand, I can always use more storage.  On the other hand, I like working out of my toolchest, and I'm not sure I love the idea of having access potentially blocked by whatever I'm working on.  I think the drawers will likely end up filled with things like hinges, fasteners, and the like, with maybe a few rarely-used tools to fill out the set.  I can't know what I'm going to wind up putting in them until I've got it built, though, so I'm not going to worry about it.  One thing I do know is that I want the drawers to be transportable:  What I'm thinking at the moment is that for each drawer I'll cut a piece of wood (possibly 1/4" ply) for a top, and store it under the drawer.  When the time comes to move, I'll be able to pull out the drawer, tack the top in place with nails, and stack it in the moving van.  That way I can move the bench without all the drawers, and the drawers can stay packed while I move everything.

7) Top.  My current bench is just about 24" deep and 50" long.  I don't love either dimension.  The back 6-10" of the top really only get used for tool storage, which shouldn't be happening.  50" isn't really long enough to work on large assemblies, though I've been making it work.  The traditional Shaker bench is significantly deeper than I want, and I'd like to try out a tool well.  So my current thinking is to make a solid top about 18" deep, with a tool well behind that. I can always put spacers in the well if I need the extra space, and in the meantime it should stay useable.

Design Considerations

I built my current bench out of Douglas Fir and 3/4" plywood.  I like the Douglas Fir:  it's hard, it's stable, and it looks good.  The plywood I'm not such a fan of... it's stable and reliable, but I don't much like the look.  I'll probably stick to a frame of DF, probably in the form of 4x4.  I might just use 4x4 for the legs, and use either 2x stock for the rails:  that will depend on how much overkill I want to go with and what lumber I can find.

For the top, I'd like to go solid wood.  My current bench has a plywood top, and while it's OK, drilling dog holes really isn't practical with hand tools.  Since I'm planning on a tail vise, what I may do is make the front 3" or so out of some hardwood, maple or oak for preference.  I can cut square mortises in that before gluing it in place, and have a good way to deal with surface planing long boards.  Behind that, I'll almost certainly go with laminated softwood;  pine, more DF, or whatever's cheap and straight at the lumber yard.  Either way I'll want the top at least 3" thick, to provide a good grip for my holdfasts.  Alternatively, I may buy a prefab laminated top, if I can find one thick enough (or two at a good enough price).

I do intend to paint everything but the top and the leg that will likely be used as a vise:  the more photos I see, the more I realize I want some color in my shop.  I'm planning for white walls and ceiling to add light, so any color is going to have to come from the furniture.

Conclusion


None of this is settled, but at least the rough outlines should work well.  With luck, I'll be able to start on this project this summer.  Without... well, design work is good mental exercise, and maybe it'll help someone else who's trying to figure out what to do for a bench.

Thursday, September 17, 2015

A Desk for a Modern Campaign

I haven't written here much recently, and I may not for the near future.  I'm in the middle of a couple of projects I can't talk about until January (or at least the end of December), so you'll likely mostly get theoretical discussions for now, and maybe a couple of tool and book reviews.  This will be the first entry I write as a design notebook entry:  when I was writing software, this was the sort of writeup I did before starting.

Background and Purpose


I've been thinking for a while that I need a new desk.  Up until a couple weeks ago I was using my kitchen table, which meant it was usually too cluttered to actually eat at.  A few weeks ago I picked up a desk cheap at the thrift store down the road, but I don't love it.  It's better than using the table, but not by a whole lot.  So while I won't have time to start building, it's time to start thinking and planning.

I decided quickly that I wanted a desk that could be closed.  It's going to be in a "public" part of the house, and I'd like to be able to just close it up and hide my mess.  I also knew that I wanted a writing slope, cubbies for sorting mail and documents into, and space for my laptop and, ideally, an external keyboard.  That means I'm looking for, ideally, something like an old secretary desk.

All of this, combined with having helped friends move furniture recently, got me thinking about campaign furniture.  I've always loved the style, and the ability to just strap it closed and move it as is is a big incentive.  The downside of campaign furniture is, of course, the expense of building it.  Last night, though, I came to an important realization:  furniture designs change over time to fit new requirements.

Requirements


So:  what are the requirements of a modern piece of campaign furniture?  I'm going to assume moving a couple of times a year;  say, something a college student might need, or someone who moves north in the summer and south in the winter.

1) It's more likely to be moved by minivan than by mule, and up staircases rather than mountains, so while it should still be solid, it doesn't need to be quite as bombproof as an original piece.

2) Humidity may still be an issue, but not to the point of rotting the wood, so teak or mahogany aren't really necessary.  The same goes for insects:  if bugs are eating your desk, they're likely also eating your house, so you've got bigger things to worry about.

3) Weight matters.  Much like a tool chest, we want the majority of the weight to be in the contents, not the box itself.

4) Getting around tight corners and up narrow staircases is an issue.  I know from experience that something 30" wide by about 20" deep can be worked around almost any odd corner, but things that are longer can sometimes be a challenge.  Figure 40" in length and 20" front-to-back is an absolute limitation, with smaller being better.

5) It really sucks to have a chest of drawers start opening itself halfway up a staircase, so each drawer should be able to lock (or at least latch) for transportation.

6) It needs to have space for a laptop,  keyboard, and mouse.  People who are likely to move often are less likely to have a desktop computer, so allowing space for that is probably unnecessary.  If an extra monitor is necessary, it can probably just be treated like a small television and left on top of the desk.

6) More and more people like standing desks, so it should end up reasonably tall.  I use a standing desk, and I find I like a keyboard to be at about 45" from the floor and my monitor to start about 10-15" higher, depending on the size of the monitor.

7) At least one lower drawer should be large enough to store hanging files:  treating it as a lateral file is probably most sensible, which means the inside dimension of the drawer needs to be at least 13" front to back.  Adding space for the drawer face and the cabinet back means a total depth of at least, say, 15".

Design Considerations


Since weight matters, I'd like to split something that tall into three sections, rather than two:  it'll make it much easier to carry, especially if lower drawers are used for storing file folders or something like that.  So:  figure two bottom sections totaling about 40-43",  with the top section a little shorter than either of the other two.  That sounds like two sections of 20" each, and one of maybe 15".  Add some low feet to the bottom section, and the bottom two sections will run up a bit further, bringing that total to around 44", give or take.  That sounds like a top section of 15" (external size) will be about right.  So now we know two sets of external dimensions:  we have a 15" minimum depth, and two of the sections will be 20" high, while the third is 15" high.

For reduced weight, let's go with stained pine for a material.  Getting 15" wide pine should be relatively inexpensive, it's easy to work with, and it's light.  We have a winner!  Walnut or oak would be more historically accurate, and stronger, but also more expensive and heavier.  Depending on my budget when I actually build it, I might go with one of those, but pine is more likely.  While the traditional thickness would be about an inch, 3/4" should be more than strong enough.

File drawers are usually about 12-13" deep, and should go on the bottom.  Given that, I'd say the right configuration is:


  • Bottom Case:  20" high.  12.5" drawer on the bottom, for files, and the remainder of the space taken up with a single shallower drawer.
  • Middle Case:  20" high.  A single full-width drawer below, and two or three narrower drawers above.  Alternatively, a file drawer below and two or three shallower drawers above.
  • Top Case: 15" high.  The full space is used as a secretary, with a slot for a keyboard and mouse at the bottom, space for a laptop just above them, and drawers and cubbies for paperwork and desk supplies scattered through the space.  A pass-through at the back for bringing power in and data cables (like an HDMI cable) out would be necessary.  A slide-out writing slope somewhere in the middle would also be nice.
For feet, I'd probably go with something removable, either turned feet or a bracket foot that clips or screws in easily.  They might or might not be removed for transport, but it would be nice to have the option.

Especially with a weaker wood (like pine), joints are critical.  The traditional half-blind dovetails should work fine, although through dovetails might be stronger.  Alternatively, rebates with brass screws would work just fine.  Brass reinforcement will do its job at the corners, and looks fantastic, so it gets to stay.

Conclusion


At this point, the design is basically done:  it's a three-component unit, with a file drawer at the bottom.  It's made of 3/4" pine, probably stained dark, and reinforced at the corners and some edges with brass.  It has one or two file drawers, along with some other storage, and stands about 58" high overall, and 15" deep front to back.  Pretty much the only variables turn out to be the configuration of the desk section, and how wide it is.  I'd be inclined to go about 36", because I know that will fit in the space I have.  Wider would be fine, narrower would be OK up to a point.  I wouldn't make it less than 30" side to side, because I think it would start looking less like campaign furniture and more like someone went overboard with a chimney cupboard.






Sunday, June 21, 2015

Working With The Tools of my Fathers

I visited my uncle and aunt this weekend, and came away with treasure, along with the pleasure of seeing them again.  I'm the only one of my generation, as far as I can tell, with an interest in old tools.  Perhaps the others are wiser than me, or perhaps they just have different hobbies.

My uncle has been slowly sorting through things from my grandfather's basement, and sent me home with a collection of tools that were used -- or at least owned -- by my grandfather.  In looking through them after getting home, I realized how much has come down to me, both from my grandfather and from my father.

Almost all of my planes are now inherited.  There's a 24" Siegley jointer, which was my father's, along with a pair of block planes he bought over the years.  All three have some quirks, particularly the Siegley, but all three work well.  There's also a pair of Stanley smoothing planes (a #3 and a #4), a pair of rabbet planes (a wooden one with an angled iron, and a Stanley #78), and an oddity I'm not quite sure how to identify.  (That would be the one between the smoothing planes and block planes.)



The handsaw behind the jointer belonged to my grandfather, and one of my best carpentry saws, a Craftsman crosscut saw, came from my father.

A few tool boxes now in my possession were my grandfather's, along with a tool chest I'm itching to start restoring.

So what difference does it make?  Is there really a difference in using old family tools?  In one way, no.  Those Stanley planes don't work any better than anyone else's, or than one I bought on eBay.  In another way, though, they do make a difference.  One of the things that's lacking in the modern world is continuity, and a visible link between the past and the future.  Each time I pick up that #3 and start smoothing a board, I remember my grandfather, and think about who might come after me.

Wednesday, May 13, 2015

A Traveling Chest - early thoughts

I love my Dutch-style chest, but it's not actually very portable.  I mean, yes, I can lift and move it with some help, but it's not "toss it in the car the morning of a trip" portable.

So I've been thinking about it, and I've decided to make a pair of devices to solve the problem.  One, which I'll build later, is a "milkman's bench", from the plans in Popular Woodworking a while ago (June 2013, according to the internet).  The first project is a small tool chest.

I'm planning to base it on a Japanese toolbox design, with a few modifications.  There's a sample of the design here.  I've seen a few variations, and my intent is to borrow a few of them.  While the standard design has no dividers, I'm considering adding one, to separate saws from everything else.  I'm also planning to set up the top so that I can set it on a bench or tabletop and use it as a bench hook and shooting board;  that will probably necessitate replacing it periodically, but that's OK.  The idea is quick and inexpensive.  To be honest, I expect nails to cost more than everything else put together, since I'd like to do square nails, and clench them in some spots.

For tools, I'm going to try to figure out a really minimal set.  Here's what I'm thinking at the moment.


  1. Saws.  My Shark Ryoba should handle the majority of chores, being cross or rip cuts in more or less any wood.  I'm also planning on a coping saw, since curves aren't really practical with the Ryoba.  I'm torn on the Veritas Carcase Saw;  it's tremendously useful, but I'm not convinced it's worth the weight.
  2. Chisels.  I'm planning on 1/4, 1/2, and 1" chisels.  They should cover just about any need I have.  These will need a tool roll, but that's OK.
  3. A hammer and a mallet.  My mallet at the moment is a cheap Harbor Freight panel beating mallet, and it works great.  The hammer will drive nails, and the mallet will adjust planes, drive chisels, and knock things together when I'm doing glueups.
  4. Brace and bits.  I'm a little bit torn on this.  They add a LOT of weight, but they're really the best option for making holes bigger than about 1/4".  Probably they'll go in.
  5. Hand drill and bits.  This might end up being my full roll of bits, but more likely I'll buy a small box of common bits, and call it good.
  6. Gimlets.  They weigh practically nothing, and they're the best tool I've ever found for starting screws.  Done.
  7. Planes.  I think I'll have a #5, #3, and the wooden shoulder plane in my regular kit.  That covers stock removal, jointing, smoothing, and rabbets, which is most of what I'll need.  I'll likely also toss a Veritas medium router plane in, because there are some things you just can't easily do otherwise.
  8. My shop apron.  The pockets of the shop apron hold:  a tape measure, a six inch combination square, a marking knife, a mechanical pencil, a folding 12 rule, and a very small six inch rule, which is great for checking mortise depths and things like that.
  9. Odds and ends.  The finest plate from my DMT set, a block of paraffin wax, a strop, scrapers, and stuff like that.  Probably a 16" rule, but maybe not.  Likely a bottle each of hide glue and Titebond 3.  At least one marking gauge.  Maybe a spokeshave, but maybe not.  Certainly a four-way rasp/file.
The real question in my mind is how much this is all going to weigh.  I'll probably drop it all in a bag or a bucket before starting to build, in case I wind up needing to slim it down further.  I could probably replace the #3 plane with a coffin plane, which would leave me the value but drop the weight some.


So what do I expect to be able to do with this?  Basically anything.  The ryoba and chisels mean I can cut dovetails.  Adding the carcase saw would mean I can suddenly cut dados, open or stopped, and grooves, and clean them with the router plane, which can also do things like hinge or lock mortises  The shoulder plane can cut rabbets.  Between the brace, hand drill, and gimlets, I can put a hole of any size in pretty much any wood.  With the coping saw, chisels, and a rasp I should be able to make curves of almost any radius, either inside or outside.

Some things will be difficult.  I wouldn't want to make a raised panel with this set, or cut grooves in anything very large.  I'm considering ordering the Mujingfang plow plane:  If it's decent, I might keep it for this chest, as a light-weight option.  If I could manage to replace all of the planes with wood, that would lighten it up considerably, leaving the brace as the single heaviest item.

In any case, it should prove interesting!

Thursday, January 19, 2012

On table saws

I saw it again today on a forum:  "The table saw is the heart of the wood shop."

We've probably all seen it, if we spend any time on woodworking forums.
"Buy the biggest saw you can afford."
"You can't do woodworking without a good table saw."
"You can't do real furniture making without a high end saw."

I have to question that logic.  I suspect every woodworker who lived more than about 75 years ago would question it too.  What did they do before they had table saws?  Did they not make real furniture?

Look:  I'm not going to argue that table saws are useless.  I'm not going to argue that power tools are somehow cheating.  It's not true.  A good, reliable table saw can make your life a lot easier.  I don't think anyone who isn't pushing some agenda is going to argue that.

But what if you can't afford a good, reliable saw?  Or what if you don't have space for one?  Or just don't want one?  What do you do then?  Give up on woodworking?  Accept that you're never going to be able to make fine furniture?  No.  What you do is find a different solution.

I'm not an expert.  I don't really do fine furniture, not yet.  But I have a cheap table saw -- you may have seen the review I wrote here -- and I occasionally need to cut things up that I don't want to use it for.  Here are some solutions I've found.

1) Hand tools.  A good hand saw can solve a lot of problems, and for cross-cutting at any angle it can solve the problem.  It takes a steady hand and some practice, but it can be done.  A good, sharp saw helps too.  This is the direction I'm moving in for most things.  No need for a sled or a fence... a piece of scrap marked at the right length to make sure everything is cut the same works fine.  Learning to cut at the right angle takes some practice, but again... it can work.

2) Use a circular saw.   I've been told it's not possible to cut accurately with a circular saw.  That's not true.  I've done it, both with an old Skil brand saw (around 7 1/4" blade) and my little Ryobi battery powered saw (around a 5" blade).  Make sure the baseplate is square, and that the blade is square to the edge of the plate.  Get a GOOD guide for the saw.  I use an old piece of extruded aluminum -- it's straight, the edge is higher than the base of the saw, and I can easily clamp it to just about anything.  Also, put a good blade on the saw:  I use a Freud general purpose blade.  Then do the following:
  1. Make sure you know the distance from the edge of the baseplate to the OPPOSITE edge of the blade on your saw.  On my saw it's exactly 1" on the close side, which makes life easy.
  2. Measure on your wood, remembering to account for that extra space.
  3. Clamp down your guide.  If things are going to go wrong, this is most likely where it will happen.  Measure.  Measure again.  Clamp down the guide, then measure a third time.  Measure at BOTH ends of the guide, and again in the middle.  Make sure you've got everything lined up correctly.  And it helps if the edge you're measuring from is square and straight, so you might want to check that, as well....
  4. Once you're confident that your guide is accurately placed, make the cut.  Make sure the edge of the saw's baseplate follows the guide the whole distance -- you'll probably have a tendency to veer off a little at the end.  Don't do it.  Also, keep an eye on the cord, if you're not using a battery powered saw.  Cutting through that can really ruin your day.

It sounds hard.  And, if the alternative is running the wood over a table saw, it's a little more complex.  But I can now get the guide set in around a minute for cutting the full length of a sheet of plywood, and the actually cut doesn't take any longer than it would with a table saw.

Oh -- yeah.  And don't forget to support BOTH sides of the cut.  You won't more than once, anyway... having a quarter sheet of plywood fall on your foot kind of teaches you that lesson.


Are there other options?  Yes.  Is a table saw easier?  Usually, yes.  But is that table saw necessary?  No, not really.  The same holds true for just about anything you can do with a table saw:  On a recent project, I cut dadoes by edging them with a circular saw, then cleaning them out with a chisel.  I could have done it with a handsaw and chisel, but the circular saw was faster and I was in a hurry.


My final word on this is:  Don't let people tell you you can't be a woodworker if you don't have a specific tool.  You can almost always find another way.  It may be harder, it may make more time, but you can almost always find another way.