Machine Production Techniques - Lesson Seventeen

At the beginning of this week I decided to go in a clamp up the two sides together ready for today's lesson. I also had to re-glue one of the stretchers as it hadn't glued correctly.

Above: Table glued together

Above: Table un-clamped

Today's lesson was hectic. I began by putting a face and edge on the three boards for the table top. However I hit a problem whilst putting a face on one of the boards which lead to it having to be at 17mm rather than 19mm.

Above: Table top glueing up

Whilst the top was gluing up I thicknessed and got the drawer front to fit the table.

Above: Table with drawer

 After this I used the table router to make the grooves for the drawers. Originally I wanted to dovetail the drawer, however I couldn't find a dovetail jig in time, so decided to use these joints

Part assembled drawer

Above: Drawer joint being test fitted

I also cut the MDF base and joined pieces of veneer to use which is the same as the rest of the table, however the veneer press heater is currently broken, so I had to leave it in until tomorrow to dry so I couldn't take any photos.

Finally just before I left I un-clamped the tabletop, and below is a picture. All I need to do now is sand it down and the use the overhead router to put my inlay in the top and drawer front.

Above: Table top unclamped

Value your time .....

Sustainability is key.....

Need to know something about wood????

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Sustainability - CS help......

Stumbled on this video and article- Information relating to Critical Studies Lecture.

http://usa.autodesk.com/sustainable-design/

Important and on every designers mind in this era.

PPD - Task 6 - My Growing Experiences ...

All you need is wind.....

Machine Production Techniques - Lesson sixteen

This lesson was mostly spent making the drawer runners, and then gluing two sides of the table together. TO begin with I marked out where the runners will be mortised on the top and bottom drawer rail.

Above: Mortise marked out on bottom rail

After this I then mortised the hole out, and then planed and thicknessed the wood which I am going to use for the runners. I then cut them to length to fit around the square leg, and also the tenon to go into the mortise.

Above: one set of drawer runners

Finally the rest of the lesson was spent dry fitting, sanding and then gluing the two table sides together, ready for next week and the final assembly.

Above: Sides gluing

One-Legged Wood Chair Mod May Knock You Off Your Feet

Just stumbled across this on a website, and love the concept.... Future inspiration I think so :)

Machine Production Techniques - Lesson fifteen

This lesson was the first one back, and I'm glad to say that the leg hasn't twisted any further, and I think the pressure of the framework has actually made it slightly better. After getting it apart (which took much longer and A LOT more effort then expected), I spent most of the time tiding up all the joints to make them fit perfectly. After I did this I remade the middle stretcher, to the correct dimensions this time, and it fitted perfectly. The last thing that I started working on was the Drawer top and bottom Rail, which is what the drawer sits between and guides the drawer in and out.

Below is a picture of the framework fitted together fully:

Above: Table framework assembled

Machine Production Techniques - Lesson Fourteen

This is the last lesson before the reading week break, so I just wanted to focus getting everything prepared for the next steps when I get back. Below is a list of things that I need to focus on / correct:

• The first thing that I noticed which I will have to correct is that the middle stretcher is to short, as I forgot that there would be a 4mm gap either side, and so will have to correct this next week.
• One leg has twisted quite badly, and therefore has made the table un-square. I have left the table assembled to hopefully stop it from twisting any further.

The main thing in today's lesson was cutting al the tenons (and forks if required), ready for some miner fine tuning, although they all go in enough to hold together. I also cut the tenon's at 45 degrees so they don't stop each other from slotting into place. However due to my profiles I had to make some holding blocks due to it not sitting flush against the dimension saws sliding fence.

Below are the photos of each stage of rough assembly:

Above: Testing that each legs fits correctly

Above: Testing middle stretcher mortises

Above: Testing four legs together

Above:Testing rails and found
 middle stretcher doesn't fit (So removed)

Above: Near complete assembly (Missing middle stretcher)

Machine Production Techniques - Lesson Thirteen

The last week before a well deserved break, so I am trying to do as much as possible. The focus of today's lesson was to make the jigs for all my stretchers and rails, and then shape them on the overhead router. To make the jigs I first used designs from my CAD drawings, and then used the laser cutter to cut them out of MDF.

Above: Designs for Laser cutter (Blue = cut, Yellow = Engrave) 

Once I'd cut the jigs out with the laser cutter, I fitted pieces of scrap wood to act as stop, to give a physical stopping location, so it wouldn't move whilst on the overhead router. I then took each piece in turn and screwed them to each jig, MAKING SURE ALL SCREWS WERE COUNTERSUNK!, otherwise it would scratch the bed of the machine.

To use the overhead router you simply raise and lower a router bit, taking about 1-2mm off each time. To use it with the jig you put a pin into the bed of the machine, and then the jig will follow this and shape your wood. The only thing that is crucial is that the pin is the same size as the router bit, otherwise it will either take too much off, or not enough.

Above: Guide pin for overhead router

Above: Overhead router and jig

The only problem I had in today's lesson was that the router bits were not long enough to cut all the way through one piece, so I took as much material off as possible, and then removed the remaining material with the bobbin sander.

Bobbin Sander and piece attached to jig

Lastly after shaping the middle stretcher I cut the mortise and tenon for it to fit into the other stretchers between the legs.

Machine Production Techniques - Lesson Twelve

The beginning of this lesson was started by seeing how the table will be finally glued and assembled.

1. Test dry run first
2. Glue sides first (Rails & Stretchers)
3. Assemble whole of frame after sides dry

After this I began to shape the table legs using the spindle moulder and a pre-made jig. To shape the legs I first used the template, to draw a pencil line which was the same as the curve. After this, using the band saw, I removed all the material apart from 3mm up to that line. This meant I would have to make fewer passes on the spindle moulder. After this material was removed, I then had to screw the each leg to the jig, and then clamp the wood down. This meant there was no possible way for the wood to move. After passing each piece in front of the cutter at different angles (starting shallow until you are in line with the cutter), it was ready to be taken out of the jig, and the whole process repeated on the other side.

Above: Spindle moulder and jig

After shaping the legs I then used the surface planer to make a face and edge on the stretchers and rails ready for tenoning.

Above: Surace planer

I then asked to be shown how to use the tenoning machine. It is a quite simple machine to use, it has two cutters, one above and one below the piece of wood, and you just set the height with a handle. It also has a hydraulic clamp to hold your work in place. I will upload photos of this shortly.(UPDATED: Images of height adjustment and machine now upload.)

Above: Height adjustment handles and counters

Above: Image of whole machine

 This lesson went really smoothly, and I progressed much further in this lesson then I thought I would, and even learnt how to use two new machines :)

Machine Production Techniques - Lesson Eleven

Today's lesson was spent mostly cutting the pieces into each separate component, ready to be thicknessed to the right dimensions. This took about half the lesson, and the rest I spent mortising using the... you guessed it, mortiser. I don't have a photo of this yet, but will upload load one soon. (UPDATED: Found one image of the finished mortise. Also know include image of mortiser.)

Above: Mortiser

Above: Mortise finished

This lesson was easy once I understood how to mark the legs out. I also worked with another person whilst using the mortiser, as it was much easier and sped the process up. Although there is not a lot to write about, mortising took a long time, and WAS HARD WORK !