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| | ===Gluing=== | | ===Gluing=== |
| | Glue joints (when done correctly) will create a bond stronger than the wood itself. To create a strong glue joint follow this general procedure. It is worth noting that gluing end grain yields a very weak glue joint and should be avoided. | | Glue joints (when done correctly) will create a bond stronger than the wood itself. To create a strong glue joint follow this general procedure. It is worth noting that gluing end grain yields a very weak glue joint and should be avoided. |
| − | # Ensure that both surfaces that you wish to glue are flat or mate together well. | + | |
| | + | # Ensure that both surfaces that you wish to glue are smooth, flat, or mate together well. Often, this requires sanding to at least 120 or 220 grit for a smooth gluing surface. Rough, un-sanded surfaces do not make strong glue joints. |
| | # Dry fit your glue joint with clamps. This will ensure that your joint fits properly and that all necessary clamps are close by and sized correctly when you go to apply glue. | | # Dry fit your glue joint with clamps. This will ensure that your joint fits properly and that all necessary clamps are close by and sized correctly when you go to apply glue. |
| | # You can never have too many clamps. | | # You can never have too many clamps. |
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| | # Recognize that once you start applying glue you are on a clock to finish setting up the glue joint before the set time. | | # Recognize that once you start applying glue you are on a clock to finish setting up the glue joint before the set time. |
| | # Apply a bead of glue on one surface of your glue joint. Then, spread out that glue into a thin film using your fingers, a glue brush, or a glue roller. | | # Apply a bead of glue on one surface of your glue joint. Then, spread out that glue into a thin film using your fingers, a glue brush, or a glue roller. |
| − | # Repeat step 5 for the other surface of your glue joint such that both surfaces have a thin, even film of glue. | + | # Repeat step 6 for the other surface of your glue joint such that both surfaces have a thin, even film of glue. |
| | # Quickly use a paper towel to wipe your fingers clean of glue. The goal here is to remove most of the wet glue so it doesn't get spread all over your lumber. Do NOT take the time to clean all of the glue. | | # Quickly use a paper towel to wipe your fingers clean of glue. The goal here is to remove most of the wet glue so it doesn't get spread all over your lumber. Do NOT take the time to clean all of the glue. |
| − | # Using the clamps you already gathered, clamp your glue joint together | + | # Using the clamps you already gathered, clamp your glue joint together. |
| − | # You can never have too many clamps. | + | # Again, you can never have too many clamps. |
| | # After 5-10 minutes, wipe up the excess glue squeeze out. | | # After 5-10 minutes, wipe up the excess glue squeeze out. |
| | + | |
| | + | Remember this old saying: "Not enough glue, you lose... too much glue gets on your shoes." In other words, if you don't see any glue ooze out after clamping (or there are several areas a few inches long where no glue oozes out of the glue seam after clamping), then you probably did not use enough glue and your glue joint will lack strength. If you use too much glue, then lots of glue will ooze out when clamping and make a big mess as it drips everywhere. Ask one of our wood shop volunteers about gluing if you have any questions. |
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| | ===General Knowledge=== | | ===General Knowledge=== |