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Cat 297c undercarriage parts? I'm starting to learn to mod rplanes, and have the parts but need advice on how to glue the new part to the stock part to prevent damage, if I do it right or if it's even necessary...
I'm working on rewiring a C-100, and will be doing the same thing with the V-300s in the near future.
The stock parts all look similar, so if the process is the same, I just need to know if you glue it to the stock part and what kind of glue, so I can do the job correctly.
That's the exact question I have also been searching for the answer to for a week now... I see parts in different colors, with different colors of glue to hold them together, and can't find anywhere that gives me the answer I'm looking for....
You do know I could order your book "Glue it, glue it!", right? I would have given you money in the past for your knowledge, your ability, and your book if I hadn't just spent the money on a new rplane.
Here's a thought: you can cut off some plastic tubing and then clamp it to the stock part. You can do it in a very permanent fashion with an epoxy glue like you might use to put together a doll house. It's not that difficult to do, and it will give you the information you need.
I can get you the plastic tubing for $15/ea. It's one of my hobbies. You don't have to worry about shipping it, as the total cost will be $15. It is avlable at a lot of places online.
The best type of tubing is polyethylene. It's not cheap, but it works great for this type of project. The stuff is the same material used to create the inside of a milk carton, and, of course, this is why. The polyethylene is flexible, very durable and can be cut and glued with no problem. It will hold up to heat well and chemicals. It comes in various thicknesses, and the thickness needed for small parts will be quite thin (thin enough to cut with a rotary tool). One drawback is that it takes a bit more effort to cut, and it might have trouble with a heat tool cutting strght across the thin walls of the tubing, but with a couple of hours of trying, you can get it to cut. Also, it's tough to get the material hot with a torch, but it is possible.
Cut off a piece of plastic tubing to cover the entire length of the shaft that you will be gluing. It should be 1/2 in. or so long, and the thickness should be as thin as possible. We are making a 2 piece joint. The tube can come from one end of the joint or the other, but there is a difference in the way that it will behave. The end at the top will be much easier to cut, because it will be the end of the joint that is going to be the most exposed to high temperatures. The material will be much easier to bend into place, and you won't have to worry about trying to cut across the thin walls. The end where you are going to put the two pieces together will be hard to cut, but that doesn't matter as much. You can put it together however you like, but if you end up using a tapered fit (it makes things easier to do in the end), it's best to have the wider end to start. It's also best to glue this end first.
Cut a strip of rubber tube to fit the shaft as snugly as possible. Make sure to leave a 1/4 in. or so on all sides of the joint. The plastic tube can easily expand, and the rubber should help to keep it from expanding to the point where it gets weak and the joint breaks. Wrap the shaft all the way around the joint at least a few times, so that it is tight around the joint. The rubber should help to form some sort of seal, and you don't want it exposed to r that can dry and make it brittle. Try to cut the rubber as cleanly as possible. Don't cut any r bubbles. If you cut a bubble, it will show in the final piece, and you will have to go through the whole thing agn. If you cut several pieces of rubber to a single tube, you will need to do some sort of bonding before gluing the whole thing together. You can go as simple as just wrapping them in a thin line of hot glue and letting them dry for a minute. This will prevent r from getting in when you glue the parts together. Once the glue is dry, wrap it in a few more layers of glue and let it dry. This should be all that is needed. If you want a bit more security, you can glue the rubber tubing to a wood dowel as well, before you glue the two halves of the shaft together. The wood will keep the rubber from getting in the way, and it also creates a place to start gluing the two halves of the shaft together. Once you have that glued, it should be glued to the joint itself. There are several ways you can put this together, and each will be a little different. You can just wrap the two pieces of rubber tubing together, with the ends glued to the shaft and the shaft glued to the joint. You can also wrap one of the tubes around the other tube, glue them together, wrap another tube around that, and so on. If you want to bond the rubber tubing to a wood dowel, you can just glue the rubber tubes to the dowel, and glue the shaft to the dowel. The joint between the two halves of the shaft and the joint between the joint and the rubber tube are both important. If you don't have a good connection, then it is very easy for r to get in between the parts. To help with this, wrap some electrical tape around the two spots where you glue the parts together. If you want to do this, you should also apply some glue to that same spot when you put the rubber tubing in place. This will keep it from getting sucked up in the vacuum of the glue. When gluing the shaft, you should apply it with a light touch, as if you were to touch a magnet to a piece of metal. When you do this, it should stick really well to the rubber tube. This is because the rubber tube is very soft, and you can tell it has the softness to allow you to easily stick to it. It will also absorb the glue you are using. Be careful not to apply too much glue to the rubber tubing, however. If you do, it is possible that you will get it sucked up into the vacuum. After you've applied the glue, wt a few minutes, and then clamp your rubber tubing to the dowel. Take a clamp that is big enough to hold both pieces of the shaft together, but it should still allow you to move them around. Before you apply the clamp, make sure that there is a space between the dowel and the rubber tubing. This will make sure that the pieces do not stick to each other. You can also apply the clamp slightly off-center. This will make it harder for the r to get in between the two pieces of the shaft. Once you have it clamped on, screw the two halves together. Make sure that you place them on the dowel correctly, as that is where the rubber tubing will be.
Once you have the clamp on, you can remove the rubber tubing from the glue on the shaft. At this point, it is a good idea to take the pieces apart to check for anything that could be causing a