Greetings, DIY !
In this article, we will look at the detailed process of making a very useful gadgets … If you are a tinsmith by vocation, then such a tool will definitely come in handy in your work.
Further instructions are taken from the YouTube channel” DobryjMaster “. The author got involved in this adventure at the request of a friend. He asked the master to try to make a high-quality sheet bending machine for the workshop, and instead of a technical assignment he handed out this drawing, downloaded from the Internet:
He did not have any requirements for the dimensions of the future product, he also did not need side stops. In general, we will work without drawings, and there will be complete improvisation. The drawing turned out to be almost to scale, which will save a lot of time.
For the manufacture of this tool, you will first need bearings. The author ran to the nearest store and bought several pairs of bearings of different diameters and sizes.
A couple of rods with a diameter of 19mm have been waiting in the workshop for quite a long time.
The rollers will be attached to these rods. To do this, it is necessary to make a groove on each bar for the bearing fit. To complete this task, of course, we will use a lathe.
We measure the diameter of the workpiece and enter it into the display system.
As a result, with a slight movement of your finger, the incisor is tied to the coordinates.
On the second bar it is also necessary to make a groove for 2 bearings with a distance of 18mm between them.
Done. The next in line are the videos themselves. The outer diameter of the first will be 42mm. Since the master only had a rod with a diameter of 60 mm, so some of the metal would have to be converted into shavings.
We continue to work. Next, the workpiece must be drilled out and then bored. First, drill a small diameter hole in the center, then bore it and make a fit under the bearing.
The first video is ready. We do the same with the second. It will contain only one bearing and, according to the figure, it has a small cone.
Now we will make a couple more thrust rollers and with this we will finish with the turning.
For these purposes, to save metal, of course, it is better to use a tube, but the one needed in the author's workshop was not found, so a bar is used again.
These rollers will be attached from the ends with M6 screws. To do this, you must first drill the holes, and then use a tap to cut a thread in them.
Next, let's make a groove for the bearing.
Then we repeat the same operation on the other side and go to the press.
The master made this press with his own hands and admits that he never spared neither time nor money for its production. Here is such a beauty in the end turned out:
Next, we will deal with the case, we will make it out of this piece of aluminum.
It is necessary to cut off a 35mm piece from it.
Cutting off such a piece with a grinder is still something to do, and a band saw is very useful here, once again it will help out and reduce the processing time.
But the cutting height was not enough.
But it doesn't matter, just turn the workpiece over and cut it on the other side.
Now, the resulting block must be aligned on all sides, well, and then we will cut it to length to the desired size.
The master had such a” killed “cutter for wood:
With the help of this very cutter, it was decided to try to round off the edges of the resulting workpiece. Aluminum is a rather soft metal, so even such a milling cutter should cope with the task without any problems.
In the end, here's what happened at this stage:
Going further, now you need to make a couple of parallel holes for the rods with bearings. To do this, using the method of simple calculations, we find the center of the holes – and for the machine.
Then we try everything in place and, if everything is good, then continue.
The body was made with a fairly large margin. At this stage, we will split it into two parts.
At this stage, it is necessary to cut an M8 thread from the ends to fix the rods in a given position.
At the base, you also need to make a couple of holes with an M6 thread for set screws, well, or goujons, as you like.
Now let's go back to the lathe. At this stage, you need to make one knurled screw for the stem.
The screw is ready. As a result, it was decided to bury him. Here the author decides to use, probably, the simplest way – just heat the part, and then immerse it in linseed oil.
And this is how the assembled part will look like:
At this stage, you can already collect the whole structure.
There is very little left, namely, it is necessary to make a bracket for attaching a pair of support rollers.
Well, everything is pretty simple here. We take a plate 1.5 mm thick and, using a segmental bending machine, bend a couple of 90-degree corners to get a U-shape.
The bracket will be attached to the movable part, which means it is necessary to make a marking for the rods. We will also make some holes for the roller axles.
Now let's refine our bracket a little and in the further marking we use rollers and a blank with a diameter of 80mm.
This is how the bracket will look like this:
Let's start processing. In this case, all means are good. The author used a grinder and his homemade grinder.
After the done manipulations, we get this beauty:
Then we put everything together in one structure. But after several experiments, at least some result was not achieved. The tool did not work, the whole thing turned out to be in this video with a cone:
In the figure, everything seems to be exactly the same as on a real listogib, but it is possible that the axis of the shaft has an inclination and the rollers fit tightly with planes.
It was decided to make another roller, as well as paint the bracket.
We wait for the paint to dry and assemble the whole structure. It looks just gorgeous, but let's put it to the test.
A handle with a lever is needed to cut a gap for different metal thicknesses. On the original (picture from the Internet) there is also a scale in millimeters for setting the desired bend size. Its author plans to apply it later, when a laser marker appears in the workshop.
For those who are interested in the weight of the entire structure, it is a little more than 2.5 kg.
And let's finally move on to testing the resulting tool. Let's take a metal with a thickness of 0.4 mm. In this example, this is the back wall from armstrong-type ceiling lamps.
After several passes – this is what happened in the end:
The author admits that he is using such a tool for the first time, so do not judge strictly. Well, at the moment this listogib is already in work, and the master has already received a review of it from a friend, and it is positive. Thanks for your attention. Until next time!
Greetings, DIY !