Here is a list of all the postings MaL has made in our forums. Click on a thread name to jump to the thread.
|Thread: Soldering station.|
I have just replaced my soldering station coz the old one went bang, it was a 998 copy. I have bought a 898D to replace it mainly because it has an actual off switch on the back of the unit that does remove all power from the internal transformer....unlike the on/off switches on the front of the panel that only switch off power to the iron and hot air gun leaving the transformer humming away inside.
My big iron for serious stuff is a monster that glows red and gets so hot you can't hold the wooden handle after 10 minutes - I reckon it's about 160 Watts.
When I was a T2A I had an electric iron...I recall the tip quite quickly took on the shape of the tags on the MDF as they were as soft as could be....ahhh...the smell of lead fumes takes me back........
|Thread: In The Newsagents ...|
Better than being on the top shelf....
|Thread: Switch jack|
Also of concern is the fact that when using the 2.5mm or 3.5mm audio jack plugs as shown as 502-855 is that they can easily short between tip and sleeve as you insert the plug into the socket... not such a good thing when dealing with a power connection. The DC power type of plug and socket as shown as 502-712A and 502-765 cannot short between pin and sleeve when inserting the plug so are a much better choice for this application, however, the contact between the battery +ve and the receiver +ve can be dodgy if subject to vibration and/or dirt as the contact area is both small and just nickel plated. Maybe OK for a glider but I wouldn't use one for a powered model.
|Thread: Pressure Equalization on petrol engines|
All the petrol heads at my old club soldered a nipple on the vent and ran a fuel tube back through the firewall into the fuselage where the atmospheric pressure varied the least and there would be no venturi effect on the end of the tube.
|Thread: 3D printer from Aldi|
I'm not sure I would consider a 3D printed spinner as having sufficient integrity for safe operation.
|Thread: Scammer alert Darren Rowden|
I think I would go get a new email address just for the advert and have the best of both worlds.....
|Thread: Boeing 737 Max 8|
There is an explanation of the factors surrounding MCAS here
The elevator trim being driven to its maximum down deflection could be considered to be an aerodynamic problem if the aircraft is in an otherwise stable condition. The software fix is supposed to be designed to limit the deflection throws I believe.
|Thread: First petrol plane dl 50 field equipment|
I never empty the models tank, just bung the breather while transporting to prevent syphoning. Be careful not to empty the carb of fuel for any length of time as that will lead to the flap valve sticking, necessitating a strip down to free it off. I carried, and always used, a starting stick (wooden pole with a rubber sock). Choke on, ignition on throttle at max, flick until it kicks - it wont run, just kick a couple of times - open the choke, close the throttle to 1 click open and flick till it starts (usually 3 or 4 flicks), but always concentrate on what you are doing!!! always worked for me over several different engines
Model retention was a webbing strap wrapped around the tail and two large ground pegs and then get behind the prop ASAP.
Enjoy the petrol experience.
|Thread: Bang good P51|
Build pics here
What benefit would a titanium alloy nozzle give over a plain and simple one?..... what are normal ones made from? nickel plated steel?
|Thread: Digital incidence meter|
The problem with 3D printers and making things with holes is that the printer will tend to make the holes too small due in part to over-extrusion. Compounding the problem you had with your particular stl files is the hole in the incidencemeter_pince.stl is set to be only 7.9mm wide x 8.5mm tall. All the other parts with square holes were set to be 8.0mm x 8.0mm. In order to build a bit of clearance into all these stl's I have edited them to all have 8.5mm x 8.5mm square holes - that should make them a better fit on 8mm square ali tube.
Modified STL's available here **LINK** for 30 days......get them while they are still there
|Thread: Retractable tailwheel|
I think Andrew has the answer, it is to center the wheel as it retracts and the closed loop linkage goes slack so the wheel does not jam on the fuselage sides as it extends again. It could also keep the closed loop clevis' from crossing during retraction.
Edited By MaL on 10/02/2019 12:05:27
|Thread: Slough RCM|
Ah good... but now your enter key is sticking
|Thread: Sequencer question|
How about a simple microswitch operated by an undercarriage leg when it reaches the fully up position?
|Thread: Gatwick drone incident|
Ken, -There were several 'drone sightings' reported to the police, some of those sightings were 'confirmed', however, these sightings were from 'members of the public' who, as the police are acutely aware, are not normally very reliable witnesses, which was the thought behind the "not sure there was a drone" statement from the police the other day.
|Thread: What is going on with Royal Mail ??????????|
I really don't care how difficult the job is.... the courier service / mail service is contracted to deliver the package to the correct address in a specified time scale and if they can't manage that then they should be held accountable. just the same as any other contract.
|Thread: mini lathes|
Waste of space and money. I even tried a 4 jaw chuck because the 'self centering' 3 jaw chuck was so far out of true it was useless. That 'lathe' will just about turn plastic and if you spring for a live centre will just about allow you to drill a centre in ali - providing you can get the work piece centered in the chuck... really...don't waste your time or money... it will be £135 down the drain.
I tried fitting a meaty brushless motor and designed and built a load-compensated speed controller for the one i had but it still couldn't cut sh1t...... used it once and now it gathers dust.
there is a reason a proper 'hobby' lathe costs £500 and the plastic toy ones from China cost £135!!
If you want to build the controller Martin I could probably find the arduino sketch and schematic. It uses a 3S lipo and an ESC to power the C4250-600 Turnigy brushless motor.. it works quite well at maintaining the requested revolutions.... but the lathe still cant cut for toffee
|Thread: Weird 6EXA issue|
Although perhaps ebay is not the best place to buy a replacement transmitter........;
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