Re: Librecadni10, brief self-introduction
Posted by Librecadni10 on Jul 19, 2018; 9:24pm
URL: https://forum.librecad.org/Librecadni10-brief-self-introduction-tp5716200p5716226.html
From: Philip [via LibreCAD] <[hidden email]>
To: Librecadni10 <[hidden email]>
Sent: Thursday, July 19, 2018 4:10 PM
Subject: Re: Librecadni10, brief self-introduction
URL: https://forum.librecad.org/Librecadni10-brief-self-introduction-tp5716200p5716226.html
Phillip,
Thank you for the reply, It's always a struggle to know just how much to explain to a person, too little and they will lack the need background, too much and you lose the person in jargon.
Your drawing is close, for a Rule stop you want to clamp the widest edge of the rule. If you widen the the distance between the uprights to something just greater than 1" (US customary) / 26mm. [1" = 25.4 exact by US Federal law.], and then shorten the uprights to the appropriate height, you would have it.
The four 1" wide combination square rules I have vary from 0.090" to 0.095" thick, so ~2.29mm to ~2.41mm. I would make the uprights no more than 0.100 / 3mm tall. The clamping screw would screw into one of the uprights and clamp the rule against the other one.
Here is Starrets version for clamping two rules end to end: http://www.starrett.com/metrology/product-detail/299
The Starrett clamp I linked to doesn't suit the use I have in mind.
I bought this https://www.amazon.com/Ruler-Machinist-Anodized-Taytools-110211r/dp/B07DYXNLWB/ref=sr_1_126?ie=UTF8&qid=1532034461&sr=8-126&keywords=taytools only to find that the linked Rule stop only accoumadeted rules that were 0.050" / ~ 1mm thick.
And while I was writing this I've had yet another idea as to how to accomplish the desired goal.
I'm going to see what I can accomplish and do more reading.
Thanks again, Respectfully Librecadni10
From: Philip [via LibreCAD] <[hidden email]>
To: Librecadni10 <[hidden email]>
Sent: Thursday, July 19, 2018 4:10 PM
Subject: Re: Librecadni10, brief self-introduction
No need for apologies at all. I tend to babble myself at times. Also, I don't think the grammar police patrol this forum so don't fret about that kinda stuff.
I do quite a bit of fabrication so I use various measuring tools such as combination squares, calipers, micrometers and so on on a regular basis. And I'm pretty familiar with most of the basic metal shapes. Flats, angles, square tubes, etc. I am not a machinist but I do use a CNC milling machine and a manual lathe occasionally. I should be able to grasp the concept of what you are trying to accomplish.
LibreCAD is extremely easy to use and will not take you anywhere near two years to learn. Seeing as how you own a milling machine I assume that you understand the X-Y-Z (Cartesian) system. But do you understand the differences between absolute, relative and polar coordinates? If you have a firm grasp of these it is very simple to create an object of an exact size and an exact location. If not, Google them. As for your Rule Stop. In the screenshot below I have created a drawing of what I think you want. The sizes are arbitrary. Is this close?
I do quite a bit of fabrication so I use various measuring tools such as combination squares, calipers, micrometers and so on on a regular basis. And I'm pretty familiar with most of the basic metal shapes. Flats, angles, square tubes, etc. I am not a machinist but I do use a CNC milling machine and a manual lathe occasionally. I should be able to grasp the concept of what you are trying to accomplish.
LibreCAD is extremely easy to use and will not take you anywhere near two years to learn. Seeing as how you own a milling machine I assume that you understand the X-Y-Z (Cartesian) system. But do you understand the differences between absolute, relative and polar coordinates? If you have a firm grasp of these it is very simple to create an object of an exact size and an exact location. If not, Google them. As for your Rule Stop. In the screenshot below I have created a drawing of what I think you want. The sizes are arbitrary. Is this close?
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