I want to share with the readers of his instrument who successfully work for a long time. Similar design available to me in the literature I have not met.
As you know, when you create drawings the designer requires pencils of different hardness in Order to combine the most used ones in one tool, I made clutch pencil with two mechanisms of attachment of the leads at opposite ends (see drawing), which allow you to have two stylus different hardness or sharpening, which is very convenient.
Double sided collet:
1 — head collet clamps; 2 — the United body of the pencil, 3 — bushings-limit switches collet mechanisms, 4 — Cam, 5 — axis Cam, 6 — lead, 7 — stylus sharpening “spatula”
For compression collets between them is eccentric, turning the wheel which is 90°, we get the opportunity to produce or supply a replacement stylus Alterations are minor and quite affordable for the manufacture of Amateur designers Will be very happy. if this is of interest to readers.
N. SEROV, design engineer, Privolzhsk, Ivanovo oblast
Recommend to read
SeAZ-11116
The car VAZ-1111 "Oka" was put into production in 1988 — assembling the machine was carried out at the Kama and the Volga factories. Further production of the car and joined the...
SCRAPER-TIME
Gutters on the roofs of the cottages have to be cleared of debris not too often— usually in the autumn, during leaf fall. So it makes no sense to have this special tool. Instead, you...
