Hi,by chance, I've came accross a sale of a Graphoplex slide rulecollection on ebay.fr.Well, by chance is actually wrong... I found it because I am stilllooking for the most perfect ...

Hi slide rulers,due to Covid 19 and "home schooling" I offer online video proctoredtrial exams with the possibility to achieve some bonus points for thereal exam.At exam last week a ...

very simple, Meine: JavierL90 uses Python in a procedural way to compute the positions ofall graphical elements and writes a text file with LaTeX instructions. That in turn can betranslated ...

Indeed an interesting description!The only thing is that the maker stated that he used LaTeX, but there isno further description of that in making the scales...//meine

LOL... I read the title and thought someone came up with a rule to do calculations ( e.g. Efficiency, BRIX, Hydrometer/Refractometer calculations for Original and Final Gravity) for "Homebrew" alcoholic ...

Very interesting 'Instructable' on building a 'Homebrew' Slide Rule. Hackaday: https://hackaday.com/2020/11/11/homebrew-slide-rule-gets-back-to-mathematical-basics/Instructables Project: https://www.instructables.com/Slide-Rule-for-the-Modern-Day/ He indicates he wanted very much to somehow machine engrave the scales and fill with ink, but couldn't arrange the required ...

I am looking for instructions for the slide rules mentioned above. Both are special slides for mechanical and industrial engineers. I have the lecture by Jörn Lütjens from 2006, but ...

Interesting find in a K&E N4058W beginner slide rule. Inscribed on the inside of the body behind the slide. Picture a 7th or 8th grade student learning about slide rules ...

Hi Eric, Glad to hear it worked out for you. All the ...

I found a "new" cursor glass that should arrive by Saturday and I'm anxious to get my dad's slide rule back to "top shape".    Thank you for looking for ...

Hi Eric,It seems the website owner modified the contents but didn't update the old link.The correct link ishttp://www.technicalcollectibles.com/Slide%20Rules/slide_rule_repair_parts.htmor:http://www.technicalcollectibles.com/Slide Rules/slide_rule_repair_parts.htmAustin Kelly

Thanks.   For cutting, I have used a coping saw (because I was making rounded cursors for circular SRs), followed by a file. I used hobby acrylic, which I expect would be ...

I use a very fine tooth saw, cut wide of the line and finish to size on a small belt/disc sander. Starting in a corner of the sheet gives you ...

Ian,What do you use to cut Lexan.   E.g., Is it a 'scribe-and-snap' type of plastic, or is it to be cut with a saw, or some other tool?ThanksWayne

Eric,Most likely the easiest and cheapest way is to keep an eye out for a cheap Hemmi rule of the same size on eBay. It can have other issues as ...

I have tried many plastics and found Lexan polycarbonate to give the best results. It is good optically, easy to work without splintering and is scratch resistant. It comes in ...

Eric, have you found the site explaining how to create a glass out of transparent plastics? If ...

Thanks for the lead.I tried it and it seems like the site is a zombie.  I get "400" bad request responses from the site, even with different browsers, and the ...

Hello,      I’d like to mention that I have some new slide rule books to sell. Perhaps they may be of interest. https://www.ebay.com/itm/203032866471 https://www.ebay.com/itm/203032875929

Should have been technicalcollectibles.com.Ian