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I had the same problem ! All is not lost i got mine back but it took a good part of an hour of stuffing around and in the end i fluked it i think . I was fiddling around with some of the icons at the top of the left panel where your work is usually displayed and found if i clicked one of these...

Craftsman 10cc twin by Westbury .

Can’t comment from personal experience as I don’t have one of these printers . I did find what appears to be a solution in this below . https://3dprint.wiki/reprap/wanhao/duplicator6/major_components/motherboard Getting zapped from the SD card socket is a problem though and i would be taking a...

Q3&4 are not transistors , they are Hall effect units and the pins should be labeled from left to right on the schematic - VCC - GND - OUTPUT.

IU - possibly imperial units ? Other than that i got nuthin ! If that is the issue it isn’t difficult to convert to metric and round up or down to the nearest metric size . The engine I’m currently building is a bit of a basket case ! It has measurements in fractions, decimal,metric and uses...

I found this on the internet - may be of some help . There are plenty of engine cfm calculators out there also . https://www.rcuniverse.com/forum/engine-conversions-92/839599-formula-calculating-carb-size.html Also this app for android ( free )...

Thanks Ken ! The castings came from a seller in South Australia and i will look up Adelaide Aeromotive . Maybe that will also lead me to some info on the other castings as well .

I was hoping you would return with a future update showing the finished unit and maybe some pictures of the build - it may help someone in the future including myself . I have seen first hand the effect of a dying glow plug and what it does to the performance of an engine . This has made me...

Used much shorter and thicker leads and got a decent glow at 1.27v @ 3amps . I’m not sure why the OP asked about current measurements on a 1/2 discharged NiCad but I’m sure he has his reasons . Now what would be a juicy bit of science is if someone could work out the effect of AC vs DC in...

Ok i had a play with a #4 OS plug - brand new never been near an engine and one problem became immediately apparent and that is the internal shunt inside a digital multimeter and the leads is of a sufficiently high resistance it effects the current flow through the plug so it won’t glow using a...

There are some radical designs out there for two stroke pistons and how they stop the rings moving . Have a look at a youtube channel called two stroke stuffing .

Possibly a F850 Mosfet or a Chinese copy of it . Try a search for F850 Data sheet .

I had an issue with my lathe when setting up a parting tool using the tailstock . I set the height and locked the toolholder down then tried a cut and had a dig in so i scratched my head a little and thought I would go over the set up again just to make sure I didn’t stuff something up . I spun...

I can’t say i like the type of toolholder the OP is using as you can’t shorten the tool right up to the lathe toolholder and thus eliminating as much overhang as possible . I was using the blade and insert style holder but got sick of paying for inserts and blades - decent quality items are...

I forgot to ask , When you set the height of the tool dis you set the outside edge of the insert or the bottom of the groove in the top to centre height ?

If you need to part off from a long bar that doesn’t fit inside the spindle bore set up a fixed steady close to the end where you are going to part off , I don’t like parting off when the part is between centres as it can cause a jam up . Try some WD40 on Aluminium as this will help to stop the...

You can also use carbide in a tangential holder - just braze a piece of carbide onto a piece of square steel and grind the thing up .

Pocket mags can only go back as far as the digital archive on the ME website .

I am truly gutted ! It saddens me enough to see old age claim a model engineer let alone to see one have a hobby they love stripped from them because of a physical ailment . I too have back issues but not in your league and standing for even half an hour can become excruciating which usually...

Hi everyone. I picked these castings up recently and thought i would show them here in case somebody recognises them . The smaller of them is about 2-1/2 inch high (63mm) approx has 21 cast on one side and B on the other , seller states it is a DB 21 Diesel . The bigger one has no markings , is...