Recent content by gunna

Further to the above, Item 49 Rocker arm bracket is missing. There are three spur gears listed, items 31, 79 and 83. Are they all the same as there is only one model (spur-drive-gear-v3)? Ian.

3dcase, just going through your bom list etc, I notice you have two radiator supports? parts 76 and 77 that do not appear in the download file. Also, what is your preference for printing the radiator itself, upright or flat and the engine casing, normal upright or sitting on one end? This will...

Jeez, I don't like the small display on the right hand side of your weather station which shows "Feels like 122". That's getting a bit warm. Ian.

For 'much' read 'not at all'. Carbide drills do not bend, but otherwise they are very good. Ian.

It's a Lister diesel. Don't know the model at the moment but a search/question here Lister Engine Forum - Index should turn something up. This one is driving a compressor. Ian.

Just looking at those test print squares, have you tried turning the mat around 180 degrees front to back and printing again? My Ender 3 has developed a low spot on the mat right in the centre, not low enough to affect adhesion but enough to prevent a flat-bottomed item to be printed there. If...

Congratulations Dave. We all need something to aspire to these days. Ian.

Cant help with your questions Simon, but gee it runs nice as it is. Ian.

On full size engines I am familiar with, the default position of the governor when stopped is full throttle as you surmise, Brian. I don't suppose you really mean "idle" speed just a suitable low speed for normal unloaded running. Ian.

Hi Bruce, I would be very interested in any other literature you have located. As you can see, "mine's bigger than yours"! This was just loosely stood up last week in preparation for a display. Ian.

Hi Bruce, they say a little knowledge is a dangerous thing, so I should be avoided at all costs!!! My previous statement was based on the fact that I knew that the gears on the crankshaft and the vertical shaft were different diameters, (13" and 9.5" as it turns out). However, closer examination...

Don't forget Bruce, the fuel pump does not cause injection. It only supplies fuel at a pressure higher than the blast air so that when the air-blast cam operates, fuel is then blown into the cylinder. If we want to be picky, we shouldn't say "injector". Willans, for example, called it an...

You were right Bruce, this is the 3 cylinder Willans from the old Carlton & United brewery. I will try and check the gear ratios on thursday when I am next on site. I do know that the vertical shaft runs faster than the crankshaft, possibly by 3:1. If this is correct, I assume it is to do with a...

Will be following with interest, Bruce. I don't know what details you may have been able to locate, but here are the internals of a full size air-blast injector for info. Ian.

Rod, 1N4001's are only rated at 50 volts. 1N4007's are the 1000 volt ones. Ian.