Friday, April 17, 2015

Bandsaw "adjustment"

Last year, my family and I moved from Washington (state) to Maryland.  The rental house we moved into has a 2 car garage, so that became my shop.  I have 4 big tools with 220 volt motors.  The tablesaw, the bandsaw, the air compressor, and the dust collector.  Unfortunately, and to no surprise, the garage of the rental house did not have 220 volt circuits.  I decided to mothball the air compressor and dust collector.  I have a small pancake air compressor I could limp by on, and I could purchase a dust collector that operated on 110 volt.  But I wanted the bandsaw and tablesaw operational.

I got a quote from an electrician to install a 220 volt circuit in the garage.  The existing electrical panel is on the far end of the house from the garage.  The quote came back at $1500 if I dug the 18" deep trench across the length of the house.  That idea quickly died.

Instead, I decided to swap the motors on the tablesaw and bandsaw for 115 volt motors.  The tablesaw, a circa 2000 Powermatic 66, was fairly easy to swap.  Maybe I'll post about that another time.

The bandsaw, an 18" Jet JWBS-18X-3, was a bit more challenging.  It seems that the manufacturer chose to use a custom motor with non-NEMA face mount, so that the bolt holes do not line up with NEMA motors.  Brilliant.  So when your motor craps out on you, you are forced to buy a replacement from them.  Or do what I did as I describe below.

Overall, the motor replacement on the bandsaw went like this:

  • purchase a 115 volt, 2 hp NEMA motor
  • purchase a new sheave
  • purchase new magnetic starter
  • have a custom motor mount made
  • enlarge the through hole in the side of the bandsaw for the motor
  • install everything
The motor I bought is a Leeson.  See the picture of the nameplate below.  This is a NEMA 145TC frame.  This motor can either be mounted via the bace or via the face.  I used the face mount.  Ebay is a great resource for things like this.

The original motor had a non-standard motor shaft, too, so I had to buy a new sheave (the pulley that goes on the end of the motor shaft that the belt rides on).  For the motor I bought, I got a BK-28 sheave with 7/8" bore.



The original starter on the bandsaw (the switch, if you will) was for a 220 volt motor.  So, I had to buy a new magnetic starter.  Grizzly had a good one... the G8291 magnetic switch.

Now came the interesting part.  How to mount the new NEMA motor to the bandsaw, given that the original motor mount was not for a NEMA motor bolt pattern.  I discovered a fantastic service online.  Emachineshop.com.  This is an online machine shop, out of New Jersey I think.  Using their free 3D modeling software, you design your part, cost it, pick materials, and submit it all online.  I was able to choose an adequate material that was strong enough but inexpensive.  Something steel.  I am not a metallurgist.  The cost, including delivery, for my custom motor mount bracket was around $75.  I ended up priming it and painting it black with spray can paint.  It fit PERFECTLY.


The next problem was the hole in the side of the bandsaw for the motor to go through.  You might be able to tell from the photo above that the bolt holes for the motor in the new mount plate were covered up by the bandsaw side.  I had to cut away the side of the bandsaw with my recip saw.  There is some support steel around where the motor comes through the side.  I just cut all the sheet metal away inside that square.  It was an ugly operation.  I used a file to dull the cut edges.  Whatever, it's just a tool and it works fine.




The new magnetic switch also needed a different mount to the bandsaw.  I just took a piece of scrap cherry plywood, screwed it to the bandsaw through the original holes (or maybe I tapped some new holes, I can't remember), and surface mounted my new switch to the plywood.  Works great.



All in all, I'm pretty pleased with this "adjustment" to the bandsaw.  When I get in a more permanent shop with 220 volt circuits, I'll put the original motor back on.  All the original bolt holes are still there.  But I've been able to resaw 8" wide poplar with this setup on a 20 amp circuit.  Not too bad!  And the experience with emachineshop.com was incredible.

Sunday, March 29, 2015

Online store

I do a lot of shopping online.  If I could buy all my groceries and gas for my car online, I might never buy anything in person.  Heck, I might not ever leave the house (except to buy hardwood...that's something I still think must be done in person).  I am also up very early in the morning, and sometimes that's when I do my shopping.  Maybe there are others like me out there, so...

I have done a little revamping of my website.  I now have an online store set up.  At least, I'm pretty sure I do.  It tested pretty well, with shipping through UPS and US Postal, payment through Paypal.  I'm working on getting Fedex available, but they seem to be a challenge.  I must say, I now have a deep appreciation for sites like Amazon and eBay.

Currently, I am only selling the European Kraft paper online.  Maybe someday I'll expand, but for now I thought some people might like to be able to order online.  Check it out, and if anything seems buggy, please email or call.  My website is www.highfillcustomwoodworks.com, click on the STORE option to the left.

Saturday, March 7, 2015

Homemade Veneer Hammer

I was recently making a marquetry panel and needed (or wanted) to veneer the back in a cheap veneer to balance the panel.  My vacuum pump was out of commission, so I turned to the idea of hammer veneering (at least for the backer veneer...hammer veneering the marquetry to the front of the panel would likely be a good exercise in ruining marquetry).  I'd never tried hammer veneering and didn't have a veneer hammer.

Perusing the internet for a veneer hammer to purchase, I wasn't overly excited by what I saw.  I decided I'd make my own.  The veneer hammer you see below is entirely out of scrap except for the 1/4" brass strip at the business end of the hammer.  The head is a scrap of oak left over from building the chevalet; the handle is an extra cherry leg from a coffee table.  The brass strip is 1/8" thick, 1 1/4" wide.  I bought a 12" length off Amazon for $6.

I took the basic dimensions and shape of the veneer hammer from Tage Frid's article in FWW #10.  I think there's about 1/4" of brass sticking out of the head.  I eased the edges and corners of the brass strip with a file.  I used a double wedged tenon to secure the handle to the head.  I did some rough shaping on the handle using rasps and a spokeshave, just to make it comfortable.

I did not bother securing the brass strip into the head of the veneer hammer.  It's just press fit in a snug groove.  (One reason I left it proud on the ends: so I can easily pry it out if I ever choose to.)

This is not a tool to show off at an art show...it's for working.  The next one I make, I'll be sure to start with enough material at the end of the handle to flare it out a bit, but I don't imagine I'll be so vigorous with this one as to lose my grip.  It's really just a squegee.

I used a brass strip so that I can put the veneer hammer in a dish of hot water to keep the metal warm.  The brass won't rust.  What I did was put a little water in a small pan on a hot plate, then stuck the brass of the veneer hammer in the water.

This worked out very nicely.  I'm glad I tried hammer veneering, and I'm glad I made my own veneer hammer (total cash outlay = $6...not bad).  I intend to use this technique on work in the future.  If you want to see a good video on hammer veneering, go to www.woodtreks.com and search for hammer veneer (or click here).


Friday, January 23, 2015

European kraft paper in America

I recently dropped a bundle of money to import brown kraft paper from France.  Why would I do this?

Because life is ephemeral.

People die, businesses disappear, products vanish.  Things that were once available are no longer there when you want them.  Some notable examples include Pierre Ramond’s “Marquetry”, which is no longer in print but can be bought used (the price continues to climb); cast iron glue pots, which are no longer made but can be bought on sites like eBay; veneer nails, which Patrick Edwards discussed in his blog here
http://wpatrickedwards.blogspot.com/2013/10/weve-got-nails.html.  

After taking Patrick Edwards’s classes on Boulle marquetry and the Piece by Piece method, I’m all in with French marquetry.  Previous to taking Patrick’s classes, I tried marquetry using a knife and the window method.  It turned out OK.  See the pictures of the dandelions and what I call the Hebrew box.  These were done with an X-Acto knife and a bunch of veneer tape.  
Dandelion picture done using a knife and the window method

Hebrew box - don't ask me what it says, because I don't know


I also tried the double bevel method on a scroll saw, but I was never able to control the cut very well.  It really wandered, and sharp turns were a challenge for me.  Then I sat down on a chevalet; by the end of the first week, I felt like I could control my cut.  The picture below was made using my chevalet and is mounted to the front of it.  I never would have been able to do this with a knife, but maybe others could.



Well, if you’re going to do Boulle or Piece by Piece marquetry, you might as well adopt the whole French method.  And that means assembling the pictures using kraft paper stretched over a board.  This is called an assembly board.  Patrick has written about this in his blog, and he and Patrice have made videos about it.  Visit their YouTube site at 3815utah. 

There are 2 critical elements to the assembly board: hot hide glue and kraft paper.  Hide glue is still available in the US; glue pots can be obtained off eBay for fairly decent prices if you keep your eyes open.  The kraft paper that the French use is another story.  It is a special kraft paper that is shiny on one side, dull on the other.  You use it by wetting the shiny side, which is somewhat resistant to the water.  It absorbs some of the water, but doesn’t totally degrade.  You then glue the board to the dull side of the kraft paper.  As the paper dries, it pulls tight across the board.  Voila, an assembly board is ready for a picture to be glued to it.  The kraft paper is also fairly strong, which is useful when you’re slathering hide glue on it.  The hide glue tends to pull on the paper as it dries; if the paper is weak, it will rip due to this pulling.

When I left Patrick’s first class, I thought I might be able to find a different paper that could be used.  Something available in North America.  I searched across the internet and purchased several different types of paper that I thought might work.  Most didn’t work at all. When I wetted them, they turned to mush.  One paper almost worked; it had a shiny side and a dull side, I could make an assembly board with it, I could mount pictures to it, but it is weak and tears easily, especially when the hide glue dries.

Apparently, Patrick was right when he said that papers in North America just don’t work.

Having seen so many things disappear in my relatively short time, and knowing how much has disappeared in the past, I thought about the European kraft paper.  It’s not available in North America (that I can find).  What if Europe suddenly moved away from it?  What if it, too, disappeared?  I enjoy marquetry and have found a method that works for me.  I decided I needed a stock pile, enough to last me.

I searched all over for a cheap way to get the European kraft paper.  There just wasn’t an easy way.  I finally contacted a company in France.  They had a minimum number of rolls they would ship to the US.  Geez, I really only wanted one roll.  But maybe other people wanted just one roll?

So I bit the bullet.  I now have several full rolls of kraft paper, the exact same stuff that Patrick Edwards uses, sitting in my shop.  Well, they’re standing really, like soldiers on guard. 
Ten-hut!

These rolls are 250 m (that’s about 275 yards) long, 120 cm wide, 90 g/m2, just like what Patrick uses.

I am making these rolls of European kraft paper available to the marquetry community at a great rate.  You won’t need to wire money to a company in France, hire a company to get the paper through customs, or store multiple rolls in your shop which are far more than you’ll ever use.  For $550 plus actual shipping charges, I’ll crate a roll and ship it to you.   Contact me with an address and I’ll find out the shipping charge for you.  

UPDATE: I will also sell lengths of kraft paper at $3/yard plus shipping.