OUR, window on the world.

Home Help Search Login Register

Welcome,Guest. Please login or register.

OverUnity Research > Benches > Grumage (Moderator: Grumage) > OUR, window on the world.

2025-11-11, 11:35:34
News: A

feature is available which provides a place all members can chat, either publicly or privately.
There is also a "Shout" feature on each page. Only available to members.

Pages: 1 ... 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 [18] 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 ... 37

« previous next »

Author Topic: OUR, window on the world. (Read 409035 times)

Grumage	Re: OUR, window on the world. « Reply #425 on: 2020-09-05, 15:13:07 »
Group: Moderator Hero Member Posts: 2795	Quote from: Chet K on 2020-09-05, 14:07:20 Grum your builds are a delight to watch run...and also the sound how far we have come since the early days...you had mentioned a machine processing seeds? is there a link to it working ? you are a breathe of fresh air. thx Chet. Hi Chet. Thanks, this is something I've spent most of my adult life doing. No machinery, just the engine that drove the seed preparation equipment. It's a Hardy Padmore version of the Lowne patent Vacuum engine. Cheers Graham. ------------------------ OUR, window on the world. image.jpeg (382.27 kB, 1226x1753 - viewed 757 times.) --------------------------- Nanny state ? Left at the gate !!

Grumage	Re: OUR, window on the world. « Reply #426 on: 2020-11-23, 13:56:11 »
Group: Moderator Hero Member Posts: 2795	Isn't modern technology amazing? A few months ago I had an idea.... Thanks to a good friend who has both CAD and CNC expertise.... What would have taken months of painstaking effort became a reality in just a few days. Cheers Graham. ------------------------ OUR, window on the world. image.jpeg (158.65 kB, 960x720 - viewed 627 times.) OUR, window on the world. image.jpeg (69.17 kB, 606x772 - viewed 620 times.) OUR, window on the world. image.jpeg (97.13 kB, 688x826 - viewed 663 times.) OUR, window on the world. image.jpeg (392.84 kB, 1200x1600 - viewed 604 times.) --------------------------- Nanny state ? Left at the gate !!

Centraflow	Re: OUR, window on the world. « Reply #427 on: 2020-11-23, 16:12:00 »
Group: Experimentalist Hero Member Posts: 3054	Very nice Graham, I wish I had your skills in the foundry Regards Mike --------------------------- "All truth passes through three stages. First, it is ridiculed, second it is violently opposed, and third, it is accepted as self-evident." Arthur Schopenhauer, Philosopher, 1788-1860 As a general rule, the most successful person in life is the person that has the best information.

Grumage	Re: OUR, window on the world. « Reply #428 on: 2020-11-24, 16:07:27 »
Group: Moderator Hero Member Posts: 2795	Quote from: Centraflow on 2020-11-23, 16:12:00 Very nice Graham, I wish I had your skills in the foundry Regards Mike Thanks Mike. Been busy in the machine shop too.... ------------------------ OUR, window on the world. image.jpeg (201.51 kB, 960x720 - viewed 530 times.) --------------------------- Nanny state ? Left at the gate !!

muDped	Re: OUR, window on the world. « Reply #429 on: 2020-11-24, 20:50:39 »
Group: Tinkerer Hero Member Posts: 3047	You're bringing it together very nicely! The V-Two offers some very interesting possibilities. How do you plan to fuel it and ignite it? I get the feeling that you're putting something rather unique together there. --------------------------- For there is nothing hidden that will not be disclosed, and nothing concealed that will not be known or brought out into the open.

Grumage	Re: OUR, window on the world. « Reply #430 on: 2020-11-24, 23:21:27 »
Group: Moderator Hero Member Posts: 2795	Hi muDped. Thanks for the interest, I just love making engines. These are " Vacuum " engines, sometimes called flame lickers/gulpers. A volume of heated air is sucked into the cylinder and then a timed valve shuts. The air entering the cooler cylinder now starts to contract and good old atmospheric pressure does the work. These are my own design going back about 25 years. These short videos show my progression through the various " standard " arrangements. Vertical, inverted vertical and horizontal. The " V " twin is my latest design and much larger than most out there, the design is yet to be proven as a runner.... https://youtu.be/S13wymzV0po https://youtu.be/wIM7pErrFCc https://youtu.be/CyouJxF6dpI Cheers Grum. --------------------------- Nanny state ? Left at the gate !!

TinMan	Re: OUR, window on the world. « Reply #431 on: 2020-11-25, 11:44:02 »
Group: Elite Experimentalist Hero Member Posts: 4726	Quote from: Grumage on 2020-11-24, 23:21:27 Hi muDped. Thanks for the interest, I just love making engines. These are " Vacuum " engines, sometimes called flame lickers/gulpers. A volume of heated air is sucked into the cylinder and then a timed valve shuts. The air entering the cooler cylinder now starts to contract and good old atmospheric pressure does the work. These are my own design going back about 25 years. These short videos show my progression through the various " standard " arrangements. Vertical, inverted vertical and horizontal. The " V " twin is my latest design and much larger than most out there, the design is yet to be proven as a runner.... https://youtu.be/S13wymzV0po https://youtu.be/wIM7pErrFCc https://youtu.be/CyouJxF6dpI Cheers Grum. Nice little engines Grum. But it would seem that the hotter the cylinder get's,the less efficient the engine become's. Also,so much wasted heat going on there. I see a couple of things that could be done to make those engines far more efficient. But fun to watch them work anyway Brad --------------------------- Never let your schooling get in the way of your education.

Grumage	Re: OUR, window on the world. « Reply #432 on: 2020-11-25, 14:33:40 »
Group: Moderator Hero Member Posts: 2795	Quote from: TinMan on 2020-11-25, 11:44:02 Nice little engines Grum. But it would seem that the hotter the cylinder get's,the less efficient the engine become's. Also,so much wasted heat going on there. I see a couple of things that could be done to make those engines far more efficient. But fun to watch them work anyway Brad Thanks Brad. Knowing you yes, there's definitely room for greater efficiency and you're correct, as the cylinder warms up the cooling effect lessens. At the end of the day they are merely toys, my designs loosely based upon the late Victorian engine shown at the front in the picture below. Built by Ernst Planck of Nuremberg. Cheers Grum. ------------------------ OUR, window on the world. image.jpeg (131.12 kB, 640x480 - viewed 317 times.) --------------------------- Nanny state ? Left at the gate !!

muDped	Re: OUR, window on the world. « Reply #433 on: 2020-11-25, 23:18:56 »
Group: Tinkerer Hero Member Posts: 3047	Fascinating videos Grum! Thanks for the links: Engine running on a Lighter The Flame Licker Engine The Vacuum Engine It is quite amazing how they're able to pull flammable gases from the flames. Showing us that Inventors back in the "Old Days" were were uncommonly aware of Real Science! Another type of Engine that really fascinates me is those that are powered by the Woodgas or Charcoal Gas Generators. I've been itchin' to make one of those Gas Generators for a long time. Charcoal Gas: Charcoal Gas powered Electrical Generator Hiroshima Charcoal Gas powered Mitsubishi Jeep « Last Edit: 2020-11-25, 23:53:58 by muDped » --------------------------- For there is nothing hidden that will not be disclosed, and nothing concealed that will not be known or brought out into the open.

JimBoot	Re: OUR, window on the world. « Reply #434 on: 2020-12-04, 21:32:50 »
Group: Tinkerer Hero Member Posts: 1788	This bloke has taken up residence in one of our trees. He’s a noisy bugger. Sounds like a cross between a large pig and someone trying to start an old motorbike ------------------------ OUR, window on the world. 17720D52-F3F0-44B7-A3EF-3C9227C6C916.jpeg (448.37 kB, 1280x853 - viewed 324 times.)

Allcanadian	Re: OUR, window on the world. « Reply #435 on: 2020-12-04, 23:14:07 »
Hero Member Posts: 2821	This noisy bugger got out of my shed the other day. 1947 9N ------------------------ OUR, window on the world. 20201116_150412.jpg (258.51 kB, 864x1152 - viewed 325 times.) --------------------------- Comprehend and Copy Nature... Viktor Schauberger “The first principle is that you must not fool yourself and you are the easiest person to fool.”― Richard P. Feynman

Chet K	Re: OUR, window on the world. « Reply #436 on: 2020-12-04, 23:50:52 »
Group: Ambassador Hero Member Posts: 4092	Jim Could you make an audio tape of that beast? Never heard one, hope it’s not a drop bear !!( heard they are real scary) Must be plenty for her to eat there? AC A 9n That will be here longer than the pyramids.. Very nice indeed « Last Edit: 2020-12-05, 01:31:19 by Chet K »

JimBoot	Re: OUR, window on the world. « Reply #437 on: 2020-12-05, 20:52:52 »
Group: Tinkerer Hero Member Posts: 1788	Quote from: Chet K on 2020-12-04, 23:50:52 Jim Could you make an audio tape of that beast? Never heard one, hope it’s not a drop bear !!( heard they are real scary) Must be plenty for her to eat there? AC A 9n That will be here longer than the pyramids.. Very nice indeed lol drop bears is what we tell tourists koalas are to scare them. During spring the males call looking for a mate. At night it sounds pretty terrifying if you don’t know what it is.

JimBoot	Re: OUR, window on the world. « Reply #438 on: 2020-12-09, 11:23:57 »
Group: Tinkerer Hero Member Posts: 1788	Here you go Chet https://youtu.be/ocIR6B-YtYE they sound a lot louder though, esp at night

muDped	Re: OUR, window on the world. « Reply #439 on: 2020-12-09, 19:51:19 »
Group: Tinkerer Hero Member Posts: 3047	Thanks to Chet for the suggestion and to JimBoot for making it happen! Excellent video. Lovely Creature. Wish we had them here! --------------------------- For there is nothing hidden that will not be disclosed, and nothing concealed that will not be known or brought out into the open.

Chet K	Re: OUR, window on the world. « Reply #440 on: 2020-12-09, 20:26:03 »
Group: Ambassador Hero Member Posts: 4092	Jim My city dweller ancestors would tell tales of Throwing everything but the kitchen sink Out the window towards the “dueling alley cats” During the night in NYC! I have to say ... that wee koala beast would definitely Outdo the cats... And would probably have been as well received ! Hope you can close your windows at night !! Thx for sharing that I had no idea!!

Grumage	Re: OUR, window on the world. « Reply #441 on: 2020-12-12, 11:56:16 »
Group: Moderator Hero Member Posts: 2795	The Retlas Dynamo. Many moons ago a friend and I designed a dynamo ( Manchester style ) to go with the increasingly larger model IC engine kits I produced. Sadly Vincent passed away and whilst clearing his workshop I found a set of very partially machined castings, these were passed on to a good friend who had recently finished one of Vincent's masterpieces, the Retlas gas engine. I thought you might like to see how these very bare castings are coming together. Cheers Graham. https://youtu.be/J7Vum2vm7gI ------------------------ OUR, window on the world. image.jpeg (97.07 kB, 768x1024 - viewed 316 times.) OUR, window on the world. image.jpeg (155.96 kB, 816x670 - viewed 314 times.) --------------------------- Nanny state ? Left at the gate !!

muDped	Re: OUR, window on the world. « Reply #442 on: 2020-12-12, 21:52:28 »
Group: Tinkerer Hero Member Posts: 3047	Amazing workmanship Grum! It is so nice to see those old well-engineered machines. I especially like the Dynamo. Brings back many memories! --------------------------- For there is nothing hidden that will not be disclosed, and nothing concealed that will not be known or brought out into the open.

Grumage	Re: OUR, window on the world. « Reply #443 on: 2020-12-13, 16:36:58 »
Group: Moderator Hero Member Posts: 2795	Thank you muDped. Now here's one for the older electrical guys. I'm trying to source a particular form of " eyelet " one where the multi strand Copper wire was formed into a circle by a many pointed star that then was hand crimped over a Copper or Brass washer, this was then placed on a stud and held by a washer and nut. These were seen on many early electrical machines. I feel this would add greater " authenticity " to my friends rapidly concluding build. Cheers Graham. --------------------------- Nanny state ? Left at the gate !!

JimBoot	Re: OUR, window on the world. « Reply #444 on: 2020-12-19, 04:41:01 »
Group: Tinkerer Hero Member Posts: 1788	Put my Christmas coils up😂 ------------------------ OUR, window on the world. B1DF5FF5-61E4-4AC5-84D6-336858CC6BE3.jpeg (328.35 kB, 1280x958 - viewed 307 times.)

Grumage	Re: OUR, window on the world. « Reply #445 on: 2020-12-19, 11:27:52 »
Group: Moderator Hero Member Posts: 2795	Lovely job Jim. We wish you and your family seasons greetings from a rather damp and soggy North Wales. Cheers Grum. --------------------------- Nanny state ? Left at the gate !!

JimBoot	Re: OUR, window on the world. « Reply #446 on: 2020-12-21, 01:10:57 »
Group: Tinkerer Hero Member Posts: 1788	Quote from: Grumage on 2020-12-19, 11:27:52 Lovely job Jim. We wish you and your family seasons greetings from a rather damp and soggy North Wales. Cheers Grum. Unusually cool here. No stinking hot xmas day here this year. May even have a fire. I blame the the grand solar minimum.

Grumage	Re: OUR, window on the world. « Reply #447 on: 2020-12-25, 10:48:47 »
Group: Moderator Hero Member Posts: 2795	Nadolig Llawen ------------------------ OUR, window on the world. image.png (63.88 kB, 600x700 - viewed 285 times.) --------------------------- Nanny state ? Left at the gate !!

Itsu	Re: OUR, window on the world. « Reply #448 on: 2020-12-25, 10:57:32 »
Group: Elite Experimentalist Hero Member Posts: 4275	Thanks Grum, Gezellige Kerstdagen en een heel gelukkig nieuwjaar ------------------------ OUR, window on the world. gezellig.png (244.8 kB, 387x527 - viewed 344 times.)

Chet K	Re: OUR, window on the world. « Reply #449 on: 2020-12-25, 15:22:09 »
Group: Ambassador Hero Member Posts: 4092	Been a ruff year Hopefully a better one to all Happy holidays ------------------------ OUR, window on the world. 5EA25D33-C81E-48E2-901B-25913EE259EC.jpeg (835.69 kB, 1551x929 - viewed 300 times.)

Pages: 1 ... 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 [18] 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 ... 37

« previous next »

Home Help Search Login Register

Theme © PopularFX | Based on PFX Ideas! | Scripts from iScript4u

2025-11-11, 11:35:34

SMF 2.0.18 | SMF © 2021, Simple Machines
XHTML
RSS
WAP2