自制MIRROR-O-MATIC 磨镜机
本帖最后由 KKKVVV 于 2017-7-13 09:20 编辑看到大家都在磨镜，自己也买了镜胚，准备尝试磨，但是人肉磨太累，特别是夏天，动一下全身汗，于是在网上搜了磨镜机的制作方法。
经过这段时间的准备，终于捣鼓出一台磨镜机。
全是人才，高手，大神啊 哈哈，炯炯有神的一张猫脸啊，话说这木料是胶合板？大丈夫？ siyanpick 发表于 2017-7-6 13:29
哈哈，炯炯有神的一张猫脸啊，话说这木料是胶合板？大丈夫？
15毫米的大芯板
中文有关磨镜机制作的文章较少，都是在牧夫上的。在老外的网上，有大量的磨镜机的制作文章和视频，磨镜的方法也多种多样，还有专门的论坛来讨论如何磨镜、如何制作磨镜机，这一点我们得向别人学习。
以下是本人自制磨镜机运转时画的轨迹 阅读了不少的老外有关磨镜机的文章，知道了磨镜机大致分以下几种 本帖最后由 KKKVVV 于 2017-7-6 14:08 编辑
第一种：Draper-type machine (single crank)
This is the mother of all machines. Its principle seems to have been elaborated by Huygens, about 1738, and improved by Lord Rosse, and more recently by Henry Draper, an American astronomer. Here are the different parts which compose this machine
[*] a rotating plate (1) supporting the mirror. This plate is usually above a table (2), and may be surrounded by a container which will collect the excess polishing product dripping from the plate
[*] a rotating stroke crank(3)
[*] an arm (4) (square metal tubing) aligned with the center of the mirror (5) and put in motion by the crank
[*] drive pin connecting the lap to the arm …
[*] a fixed guide (6) that lets the other end of the arm move back and forth when the crank is in action
[*] one or two motors activating the crank and the plate separately
[*] a device to regulate the rotating speed of the crank and the plate (pulleys or electronic variator...)
本帖最后由 KKKVVV 于 2017-7-6 14:08 编辑
第二种：off-axis positioning on a Draper machine
Ritchey added a side control (1) of the sliding arm, thus enabling an off-axis position of the arm and of the strokes
第三种：Draper machine with a double crank system
A second crank (or reciprocating system) was added in place of the fixed sliding guide, permitting a wider variety of strokes
用水泥或牙膏粉浇筑，再贴上马赛克瓷片当工具板，成本低，这也是老外常用的方法，有时老外还有杠铃盘、大水管法兰来做工具板。看来老外还没俺们有钱，俺们直接用等大的玻璃来做工具板 这是俺准备做的工具板，水泥+马赛克瓷片+万向底座
棒 厉害 厉害，学习 期待视频学习。。。 继续讨论磨镜机的种类。
第四种：Hindle alternative
In his turn, Hindle replaced the drive pin by a frame (1), called alligator, that holds the disk by its side. This device makes it possible to place the mirror on top, which is impossible with the Draper machine. Removing the top disk thus becomes easier, as well as adding pressure onto it with weights whenever necessary
第五种：Draper-type machine with offset arm
The main stroke arm (1) has been placed alongside the table. A second arm that can be lifted (2), connected to the first arm, moves the top disk. Its length is usually adjustable.