Welcome to Online Community for Engineers and Metalworking Enthusiasts

Some of our best rated resources

Have a question or want to start a discussion? Post it! No Registration Necessary

PolyTechForum.com website provides free, on-the-go reading and posting access to 32 Usenet discussion groups, completely anonymously and without requiring registration.


Americans Order The UK Around?

posted on 07-13-2019

Brexiteers Sacrifice Kim Darroch, Dignity to Trump Bloomberg - 3 days ago ? https://www.bloomberg.com/opinion/articles/2019-07-10/brexiteers- sacrifice-kim-darroch-dignity-to-trump read more »

weld shrinkage

posted on 07-06-2019

Would acetylene's larger heated zone make it better than stick to weld a tee joint in 1 square tubing that should be as square as possible? The shorter leg will be the upright that planks are cla... read more »

Re: Anvil Identification

posted on 07-01-2019

underwood.sa@gmail.com writes: Oh dear. What a shame. No help in locating you particular anvils but to identify the make you might want to have Anvils in America by Richard A. Postman, available... read more »

Covert Charpy Impact Value to Izod

posted on 04-10-2019

Can you please help me , how to convert charpy impact value to Izod value. Is it any standard formaula . read more »

Mechanical part,I need a search term to find and purchase.

posted on 07-08-2019

Hi guys, I'm rebuilding my Radial Arm Saw, most the table, but need to purchase the in this picture. What is it called? Thanks, Mikek read more »

Engineering and Science

Wind, solar, storage and back-up system designer. Free online calculator tool.

posted on 07-10-2019

There are two links, the first to the designer free online calculator tool itself and the second link is to my blog post about the designer. Wind, solar, storage and back-up system designer for 10... read more »

coil ohm reading

posted on 07-06-2019

I have an old commercial self propelled mower with a eh18 engine I lost spa rk so I replaced coil with a new one just like the one that came off of mow er.I had spark but engine would not start but... read more »

an introduction to analysis of financial data with r solutions ruey s. tsay

posted on 01-29-2019

an introduction to analysis of financial data with r solutions ruey s. tsay The Solutions Manual ( Instructor Solutions manual ) includes full solution s for the following titles in PDF. you can s... read more »

Nonlinear Programming 2nd Edition by Dimitri P. Bertsekas

posted on 10-05-2018

trustsolutionsteam@hotmail.com t r u s t s o l u t i o n s t e a m @ h o t m a i l . c o m trustsolutionsteam(at)hotmail.com We're a team found for providing solution manuals to help students i... read more »

Reinforced Thermoplastic Pipe Market 2018 Global Analysis with Top Key Players- Technip, Cosmoplast, Polyflow, PES.TEC, Aerosun

posted on 11-21-2018

The report Reinforced Thermoplastic Pipe Market by Key players highlights t he essential market dynamics of Reinforced Thermoplastic Pipe Market sector . The efficiency of this segment has been stu... read more »

Computer-Aided Design and Manufacturing

Free training videos for learning Solidowrks grasshopper / Rhino / Kinetic Architecure

posted on 02-19-2019

Hi, here are some beginner training videos for learning Modo / Rhino / Solidworks (soon GH) : https://www.youtube.com/user/tgroppi Best Thomas read more »

Call for Papers: Brain Informatics 2019

posted on 06-05-2019

[Apologies if you receive this more than once] CALL FOR PAPERS The 12th International Conference on Brain Informatics (BI'19) December 13-15, 2019, Hainan, China http://wi-consortium.org/confe... read more »

recomendations for table top milling setups?

posted on 06-16-2019

thinking of doing some small (and I do mean _small_) milling, to make a set of molds for casting type for hand setting printing (aka Letter Press). Not sure it is a cost effective method of gett... read more »

What is a good 3D freeware CAD program for modifying this DXF camber jig drawing?

posted on 05-31-2019

Do you have experience with 3D CAD freeware on Windows to help advise me? o What 3D CAD freeware might work well for this simple DXF style drawing? The reason I ask is that, often, the expense of... read more »

Free telemetry packet processing software (TPS)

posted on 11-04-2018

Free telemetry packet processing software See the zip file 'TPSDIST.ZIP' free download at: http://www.microscitech.com towards bottom of home page We stopped developing TPS in 2009, when it ran ... read more »

I tried to Export the assembly from ProE Intralink workspace to Disk. But I got a message showing "An error occured on Import/Export." Do anyone help me to resolve this ?

posted on 07-28-2017

Even I check the all dependencies everything looks good. All the sub components are exported with out any error. But Every time when i tried to export the assembly file , I get this message. read more »

Model Engineering

Airfix Bristol Blemheim Mark I-F in 1/48

posted on 03-18-2019

Has anyone built this kit? The reviews I've read look promising. Also is anyone aware of any plans by Airfix to issue a Mark IV kit read more »

DTH and Rotary Drill Rig Suppliers

posted on 02-23-2019

Looking for a company which supply Drill Rigs at affordable cost? Then here you go you are at exact place Focus Mining Services are suppliers of DTH & Rotary Drill Rigs in Both Australia & South ... read more »

75 year collection

posted on 12-22-2018

does anyone know if there is a limit as to the number of downloads that you can do with this collection. after loading it on my computers in house (for backup) then I started getting error ... read more »

Pedersen milling machine vpf31 Electrical Drawing

posted on 07-13-2019

_I Desperately Need Above Model Electrical Wiring Diagram https://www.polytechforum.com/img/6f read more »

Jacob Sparre Andersen has passed away

posted on 12-17-2018

I have been asked to announce to this group that Jacob Sparre Andersen has passed away from stomach cancer on Sunday 16th of December 2018. Jacob was admitted to hospital only a month ago, and des... read more »

LEGO 3D Milling Machine

posted on 03-31-2013

Saw this in another group, could not resist re-posting here: http://youtu.be/oF0pMILT7_Y NXT-based. Given that it's Easter today, can't resist the temptation to compare it to the Eggbot - similar des... read more »

International Engineering (BETA)

Solaranlage mit Netzbackup?

posted on 07-11-2019

Hallo von den Plugin Wechselrichtern mal abgesehen... gibt es eigentlich Solarladeregler/Wechselrichter zu Zivilen Preisen bei denen man z.b. Nur einfach das normale Stromnetz durchschalten? Skal... read more »

[MANIFESTO] it.hobby.modellismo

posted on 07-16-2019

In fondo a questo articolo, inviato automaticamente ogni mese, troverai il manifesto di questo newsgroup (it.hobby.modellismo). . Tieni presente che esistono anche questi newsgroup it.test ... read more »


posted on 07-16-2019

es drmm-Treffens gestellt hatte, gestern Purzeltag gehabt. Herzlichen Mondfinsternis? Die hat nix damit zu tun, ich seh sie nur gerade durchs Wohnzimmerfenster, sie hat jetzt ihr Maximum. Jibbe... read more »


posted on 07-16-2019

Producenci filmow s-f przescigaja sie w pomyslach na drzwi/grodzie. Przesuwne, jak przyslona w obiektywie itp. Jak myslicie - co by bylo najlepsze, gdyby jeszcze musialo zapewnic szczelnosc w raz... read more »

[Conseils d'utilisation] fr.rec.modelisme

posted on 06-02-2019

Archive-Name: fr/chartes/rec.modelisme ======================================= read more »

Fehler bei Wasser"uhren"

posted on 12-11-2018

n ls Integral? Genauer: r Fehler mehr sondern unerkannter Verbrauch. Hat er recht? Danke Axel -- / Mail | -- No unannounced, large, binary attachments, please! -- read more »

CEM machine outil

posted on 07-15-2019

Bonjour, Je viens de terminer la fabrication d'une machine outil, une thermoformeuse. un arduino : La mesure fonctionne parfaitement sauf lorsque les moteurs brushless de la temps. read more »

Polytechforum.com is a website by engineers for engineers. It is not affiliated with any of manufacturers or vendors discussed here. All logos and trade names are the property of their respective owners.