Showing posts with label Machine Production. Show all posts
Showing posts with label Machine Production. Show all posts

Thursday, 8 March 2012

Wednesday, 7 March 2012

Machine Production Techniques - Lesson Nineteen

At the beginning of this week I decided to fit the veneered base, and glue the drawer together.

Above: Drawer clamped
I also cut a handle out using the laser cutter, and then used the bobbin sander to remove the burn marks. I used the remains of the piece to help use as a way to clamp the handle whilst gluing to stop it from bending with the pressure.

Above: Handle clamped and gluing

Above: Finished handle
 This lesson was spent shaping the profile on my table top. This was done with a shaped cutter and the table router. It was really easy to setup, and I think it is an aesthetic design.

Above: Router piece to make profile on table top

Above: Finished profile on edge

 I also spent time on getting the drawer to fit, this include altering one of the drawer runners as it was at a slight angle. I also shaped the back of the drawer so it is easier to slide into place. I also added a drawer stop to the back of the table so the it aligned the drawer front with a slight step. I reused some spare timber to minimise waste.

Above: Shaped drawer back
Above: Drawer stop
  Finally I fixed the tabletop to the frame. This was done by simply screwing it through the kicker rails, with two screws being fixed and two screws being in a slot to allow for movement in the tabletop.

Above: The tabletop fixings

Thursday, 1 March 2012

Machine Production Techniques - Lesson Eighteen

Most of this lesson was spent remaking the back of the drawer as I cut the original too small. I also sanded the table top down using the wide belt sander and then cut it to length.

Above: Table top ready for profile 
I also fine tuned the joints of the drawer so they fitted perfectly and the drawer is now nearly ready to be clamped up. All that is left now is to cut the base to the right size, and then clamp it all together. 

Wednesday, 29 February 2012

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

Thursday, 23 February 2012

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

Wednesday, 22 February 2012

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

Thursday, 9 February 2012

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)

Wednesday, 8 February 2012

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.


Thursday, 2 February 2012

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 :)


Wednesday, 1 February 2012

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 !

Thursday, 26 January 2012

Machine Production Techniques - Lesson Ten

Today's lesson was mainly used to sort, mark out and cut the timber which came in this morning to sawn lengths. This was then stickered and stacked to allow it to dry. I also began on the legs, and the first thing I did was to create a face and edge. After this I then thicknessed each leg to the correct dimensions.

Above: Thicknessing the legs to correct dimensions
 I then spent the rest of the lesson marking out the mortises ready to cut out. We then show how to use the mortiser. This is a machine which has a drill piece inside a square cutter. When you pull down on the arm it first drills a hole, and then the cutter slices the wood to leave a square.

Above: Mortiser bits.

The Mortiser also has a bed which can be adjusted from left to right and front to back by two wheels, allowing you to make multiple mortises or long ones without have to un-clamp your work every time.

Wednesday, 25 January 2012

Machine Production Techniques - Lesson Nine

This lesson was the start of the table with drawer which we will be making. The lesson was a theory lesson, which explained about the mortise and tenon joints we will be making.

A brief description on a mortise and tenon joint:


  • Means of mechanically joining two pieces of wood
  • Strong - Only moves in one direction
  • CUT MORTISE FIRST!!! - Drill bits at certain widths - difficult to fine tune the width of mortises
  • Tenon cut after - easy to fine tune to mortise
Why add shoulders:

Above: Tenon with shoulders
  • Prevents racking
  • Positive stop location for a tenoned component
  • Hides the edges of the mortise
The rule of thirds


Normally for the tenon part of the joint, you divide it by three, and that will determine roughly how big the tenon will be. This may have to be adjusted slightly depending on the cutter.

Above: Rule of thirds
Our Rails:
We are doing the tenons for the table with this specification:


  • Split into 4mm, 10mm, 4mm
  • Reveal - 3mm
  • 37mm maximum length of tenon (Mitred at end - 45 degrees)
  • Top shoulder and haunch 10mm
  • 150 MAXIMUM tenon length till it becomes forked.

Above: Forked tenon used in leg construction with haunch
Finally in this lesson we looked at the spindle moulder. This is a machine which is used to shape pieces of wood by using a jig. This is what I am going to be using to shape the legs of the table.

Above: Example spindle moulder
A few important rules are that it is a maximum cut of 1.1mm, and to shape the legs you have to have one mortise up and one facing you for the first cut, and then one facing you and one facing down to cut the profile on the outside edges of the leg.

Thursday, 19 January 2012

Machine Production Techniques - Lesson Eight

I spent the beginning of the day fitting the drawers and making a wooden base. Fitting the drawers was simple but time consuming, and the drawer base is used as the drawer stop. The base was made out of a piece of wood which was the same size as the base, and then cut with 2/3rds on one side, and one 3rd on the other. This meant that there is a base for one side to sit on whilst shut, and an equal base to fix wheels into place.

Above: Drawers fitted and base installed.
I then decided to go buy some extras for the toolbox during lunch. This included wheels, a hasp, a lock and also another hinge. When I got back, the first thing was to fit the wheel. There are six wheels in total, four for the big base, and two for the small base. Two of these wheels are lockable, so you can stop it from moving.

Above: Wheels fixed to the base of the toolbox
After fitting the wheels, I then added the hasp and lock.

Above: Hasp and Lock
After I completed these tasks, I decided to make my own modifications, as the wood for the table had not come in. The first thing was to fit a hinge and cut a door inside the cabinet. This is going to be used to hold my chisels in a rack that I made. I drilled a handle in the top left hand corner, similar to the drawer handles.


Above: Inside door hinged.

I then began work on the chisel holder. I started by marking out and drilling holes the size of each chisel (as they were all slightly different). I also added two extra holes for any chisels I might get in the future. Then using the band saw I cut slots to each hole to slide the chisels in.

Above: Chisel holder with chisels.
I originally planned to fix this to the back of the door, however I then thought it would be better if I could take the chisels all out at the same time and put them onto the bench. Therefore I made a free standing chisel holder.
Above: Free standing chisel holder
I then made two drop screw holes in the chisel holder, and put two screws into the back of the door. This allows me to hang the chisels securely, but also take them out whenever required.

Above: Chisel rack fitted to door
Finally I made two saw holders on the back of the cupboard, so they wouldn't get damaged in a drawer, and are easily accessible.

Above: Saw holders.
Overall for this part of the module things went relatively smoothly, and allowed me to use the basic machines in the workshop. I am glad I had time to customise my own side of the toolbox which was not limited to the module requirements, as I will be using it for many years to come, and do not know if I would have time in the future.