Good day, lovers to make something with their own hands, in their free time. In today's article I will try to describe in detail and show the assembly of one rather interesting and, not unimportantly, useful homemade product. This homemade product will expand the functionality of the tool you already have, namely, this will be the attachment for the grinder, which every “metal worker” probably has. I think all owners of a grinder want to expand the functionality of their tool. The homemade product itself will be a tool with which you can grind something. The maximum size of the object to be sanded depends only on the size of the grinder at your disposal. The homemade product is quite simple and consists of a minimum number of elements, so its assembly will not be difficult at all. Well, I think you shouldn't delay with a long preface, let's go.
For this attachment on the grinder, you will need the following, namely:
– Not a large sheet of thick metal (3-4mm) < br> – Metal strips 3-4mm thick
– Mounting screws
– Square metal profile
Of the tools you will also need the following:
– Construction corner
– Drilling machine or ordinary drill
– A set of drills of the required diameter
– What kind of lubricating oil
– Welding machine
– All necessary accessories for working with the welding machine
– Cutting and grinding discs on the grinder
– Which -nothing paint to protect homemade products from corrosion
Making a nozzle for a grinder.
It is best to start the manufacture of this nozzle with the most important thing, namely, with the fastening of the homemade product to the grinder. For this very fastening, we need to take a small metal sheet or metal strip with a thickness of about 3-4 mm. In fact, in this case, the thickness is not important, the rigidity of the structure itself depends on the thickness, so the thicker, the more reliable, but choose the material without fanaticism. If you chose a metal plate instead of strips, then use the grinder to cut the strips of the required length. The length of the strips should be slightly more than half the width of the grinder in its widest part, a little later you will understand why, and the width of the strips themselves is not important, let them be the same as the metal square pipe you have selected. We need 2 of these strips.
After 2 identical metal strips have been cut out, the following must be done with them, namely, drill two through holes. The holes themselves must be drilled in the center relative to the width and at the edge relative to the length (see photo). It is necessary to drill in the same places, so that, as a result, we get two absolutely identical blanks. First, we outline the places for drilling holes and at the points where we will drill it is necessary to hit with a sharp metal chisel, this is necessary so that during drilling, the drill does not move to the side and the curves of the workpiece do not turn out.
Next, go to the drilling stage. Of course, you can drill holes with an ordinary drill, but making an even hole in a sheet of thick metal using an ordinary drill is much more difficult than, for example, using a drilling machine. Therefore, I recommend doing this in the same way as the author of this homemade product using a drilling machine. If you have chosen sheets of relatively thick metal, then when drilling I recommend using any lubricating oil (you can also use “working off”), thereby you will reduce friction and minimize the possibility of overheating of an expensive drill. Select the drill diameter based on the diameter of the mounting screws.
Having cut out the blanks and drilled the necessary holes in them, we continue the assembly. Now we need to install these same blanks on the grinder. The workpieces are screwed to the grinder using special fastening screws, in the places where the handle is attached, usually the handle is attached from both sides, under the “left” and “right” hand. We fasten the blanks so that they stand parallel to each other (see photo). And here is an important point, which was mentioned at the very beginning, namely, our blanks should be slightly longer than half the width of the grinder, this is necessary so that after installation and protrude slightly beyond the dimensions of the grinder.
After making sure that our two blanks, installed on the grinder, stick out as needed, we proceed to the next stage. Now we need to weld a spacer between these two blanks, which will connect these same blanks so that we have a single piece. To do this, from a sheet of metal or a metal strip (from the same material that was used for the previously made elements), we cut out another strip of the required length and the same width as these two blanks.
Having cut out the next workpiece, and, as described earlier, we weld it into place, namely between two workpieces screwed to the grinder to connect them together. We reliably weld the workpieces together over the entire area of their connection in order to avoid further breakdown of our structure. Well, of course, we grind the welded seams with a grinding disc. As a result of this stage, you should have a “P” shaped part, which is the grinder attachment.
Next, we need to take a small piece of a square shaped pipe. An impromptu grinding table will be attached to this pipe. So, this very pipe must be welded to the self-made fastening of the grinder, and then to this square shaped pipe, another shaped pipe at an angle of ninety degrees. Thus, we go around the rotating circle of the grinder.
In order to more accurately weld the blanks at a right angle, at first you should not weld the first section of a square shaped pipe to the grinder, but it is better to first weld the shaped pipes together. So in order for us to get it beautifully, one of the sides of each of the profile pipes should be cut off at an angle of forty-five degrees. To do this, we need a building corner and a marker, mark the places of the saw cut and, holding the workpiece in a vice, carefully saw off the edges along the just drawn contour. Well, and, accordingly, we weld them together without forgetting to grind the welded seams.
After that we weld the already obtained “L” -shaped workpiece to the fastener made and installed on the grinder. We also try to weld the parts together over the entire area of their connection, since it is this connection that will be most loaded and the rigidity of the finished homemade product will depend on it (do not forget about grinding the welded seams).
The next stage in the assembly of our homemade product is to make and weld the grinding “table” itself, it is difficult to call this part a table, since for the most part it looks more like a “stop” than a table. We will also cut this workpiece from a sheet of thick metal (3-4mm), the size of the table is selected individually, the main thing is not to forget that the grinding discs themselves can be of different form factors, that is, it is better to leave more free space for them. Having cut it out, we weld the tables to the place indicated in the photo below.
So we smoothly moved on to the last stage of the assembly. Now we need to make a leg, with which we will attach the homemade product to a vice, thanks to which, in turn, we will be able to comfortably use our design. The leg itself, simply, is a simple section of a shaped pipe. Just saw off from the pipe that we used earlier a segment no more than 5 cm long. And weld it to the place indicated in the photo.
All is ready! All that remains is to paint the homemade product, of course it is not necessary to do this, but it is worth it if you do not want your homemade product to gradually rust all over.
Here is a video of the author of the homemade product:
– Metal drill bit set
– Cutting discs for grinder
– Grinding Discs
– Building Corner
Well, thank you all for your attention and good luck in future projects, DIYers!