How to cut a large diameter hole in a metal plate?
We tell you how to make a homemade circular drill (ballerina) with your own hands for cutting round holes in sheet metal.
We spotted this interesting idea on the YouTube channel “Made in a Garage.”
Necessary materials:
- metal blank;
- round steel bar;
- square bar;
- metal drill;
- fastening hardware - screws.
note
: The circular ballerina drill can be easily adjusted to a specific diameter. To do this, you need to move the cutter holder to the left or right, increasing the distance between the cutter and the blank.
It is better to use a homemade drill on a drilling machine, and not in conjunction with an electric drill - this is the only way you will be able to achieve a high-quality result.
the thinnest cutting wheels
For modeling for fine work with metal, I was looking for cheap cutting wheels. Milling cutters are expensive and on stainless steel they die quickly, diamond wheels are even more expensive. Look what I found;
The M6 stainless steel bolt was cut to three mm. I cut the sheet, then it’s better to use adult circles. The price of one Proksonovskaya cutter is 6 euros = 100 pcs. such circles.
And where can you get them?
Okay, I won’t play conspirator. Here’s the seller; it’s better to buy together, delivery to Russia from 35 euros. https://www.ebay.de/itm/100-TRE. #ht_2779wt_1139
200 rubles 100 pcs. without delivery of course.
planetaplan
Both are cut-off types, but if you try and see, you will feel the difference.
And I showed the thickness of 0.27 mm. But that’s not the point, for me it was important. I called the topic the thinnest.
1mm. a lot. I have a 115mm one for a large grinder 1mm thick, and here I have a 30mm one. They only use it to clean up welding. Try to make such a thin (0.27) cut and you will see the difference, you can touch the metal with your hand right away, no tarnish or deformation from heating. This is important for delicate work.
I take ordinary reinforced cutting wheels 125 mm, 0.6 mm thick. I cut out what I need and work.
The circles are definitely cool. Thanks for the topic.
planetaplan
Try to make such a thin (0.27) cut and you will see the difference, you can touch the metal with your hand right away, no tarnish or deformation from heating. This is important for delicate work.
Well, the topic is NORM. However, it was thought that the groove would be cut according to the thickness of the plate, i.e. cut a groove in a thickness of 2mm But still instructive! Sincerely.
Cool circles! I can just see what a wonderful cut the liner will have. Mmmm.
mar4elli
Cool circles! I can just see what a wonderful cut the liner will have. Mmmm.
=== and now imagine that sand, quartz, has filled into the groove (0.3 mm), and everything has become wedged. And what hard stuff will you use to clean such a groove in the field? The consumable is most likely cool, but for certain tasks.
You upset me with this message (I didn’t even know that you had them (then I would have reported in the parcel that you just sent me
And the guys take it and are very happy.
Good afternoon. Comrades, it seems to me that you have forgotten the main thing. Disc diameter! After all, they are talking about delicate cutting (cutting through bolster, etc.), and not about dissolving commercial wood.
