Drilling machine

Drilling machine with adjustable drilling height. There are many good machines on the site: https://www.printables.com/model/719907-super-stable-bench-drill-for-pcb-3d-diy-bench-dril https://www.thingiverse.com/thing:4733998 https://www.printables.com/model/1594140-benchdril-for-795775-motor-upto-4mm-drills I wanted to make something of my own: a larger adjustable drill height, a longer drill stroke, and a more powerful motor. I liked the ideas and their implementation in these models, and I incorporated them into my own version. Thank you to the authors of these machines. To ensure that the lever returns, I had to install two springs: d-0.6 mm, H-35 mm, and D-6 mm. It would be desirable to add lighting to the drilling area. However, this will be included in the next version. After the motor in my saw jammed and the control unit burned out, I installed overheating fuses everywhere. Let it be so, so I don't have to worry. I use an ER11 1-7 mm spring collet. The racks are a round aluminum tube with a diameter of 12 mm. the wall thickness is 1 mm. the length is 0,25 m. The lever is a round aluminum tube with a diameter of 12 mm or 10 mm. Printing: nozzle 0.4, layer 0.2 mm, fill 35%, wall 4, PETG, motor RS 775 - https://aliexpress.ru/item/4000473503192.html?spm=a2g2w.orderdetail.0.0.77d24aa6jQEQjJ&sku_id=12000020722903034 MGN9 linear guide (length: 100 mm) and MGN9H carriage - https://aliexpress.ru/item/1005003477858802.html?spm=a2g2w.orderdetail.0.0.7cd34aa69lG0D3&sku_id=12000025965780501&_ga=2.237758082.380327315.1773824487-450344502.1773564145 10x15x4 ball bearing (2 pieces) - https://aliexpress.ru/item/1005006760827876.html?spm=a2g2w.orderdetail.0.0.3d874aa6DU8wSR&sku_id=12000038214813369&_ga=2.240321409.380327315.1773824487-450344502.1773564145 Tension spring (Length: 35 mm, wire: 0.6 mm, diameter: 6 mm) - https://aliexpress.ru/item/1005011741558260.html?spm=a2g2w.orderdetail.0.0.23de4aa6SrLCWG&sku_id=12000056411022769&_ga=2.174850720.380327315.1773824487-450344502.1773564145