MaL

Rich - the generally accepted perceived wisdom is that you do not power the rx and ignition system with the same battery. The ignition electronics generates high frequency noise in its operation and it is best to isolate this from the receiver power lines. Use a separate ignition battery. Mad Dave is exactly right The guy in the video dismisses all possible failures with the simple paralleling up of the power supplies very flippantly. Just because he hasn't seen a failure yet doesn't mean it can't happen. Take a look at how close together the positive and negative wires are where they are soldered onto the battery terminals on most battery packs, should the wires short out there for any reason (poor insulation, chaffing) then the resulting voltage drop will affect both batteries as they are directly tied together. There will be a lot of smoke and melted insulation and not enough power to the Rx to maintain control, you might even destroy the tracks within the receiver because of the excessive current flowing through the Rx connector block.     At the very least there needs to be some mitigation to prevent a catastrophic failure in the event of a wiring short circuit The switch harness is just standard, however should you be willing to solder the diodes into the switch harness then the switch plug/sockets can be dispensed with, thus removing another possible point of failure. Should there be a short circuit failure anywhere to the left of the diodes the RX will still receive power from the unaffected battery. A single open circuit in the wiring anywhere will not cause a power outage. There will be a small voltage drop across each diode so 6V packs would be recommended. The current rating of the diode needs to be sufficient for the expected load, when one is correctly chosen the diode will be pretty bullet proof. A simple solution that subscribes to the KISS principle so as to introduce as fewer failure points as possible. ummm two more posts between me reading the last entry and posting mine that essentially render my musings pointless      Edited By MaL on 01/05/2018 12:37:22

I had one a while ago that wouldn't work on my laptop.. something to do with the laptop having the wrong chipset - but it worked ok when using an android mobile phone. might have all changed now though.

DC coaxial power connectors are rated at 12V @ 5A...Pushing them more than that is asking for trouble, especially in a dirty environment

Does your slicer software have an 'extra restart distance' setting? - it is the amount of extra extrude feed at the start of every extrude run, that might be better than reducing the retraction distance as that affects stringing. In the slicer I use (Simply3D) it is set to 0.12mm . When you say the internal structure is rubbish does it look like under-extrusion? Can you force your slicer to 'only retract when crossing open spaces' and 'avoid crossing outline for travel movements'? This will force the nozzle to keep to the walls and not retract whilst it moves the head to the start of the strut so there is plastic immediately available at the start of the extrusion. I have a different printer but I have a retraction distance default of 0.8mm   Good fun isn't it....filling up your waste bin Edited By MaL on 28/04/2018 10:42:42

IMHO The holes are there because the extrusion rate is still too low or not flowing through the nozzle smoothly. I would try increasing the flow rate one point. Also I would leave the extruder temp at 220, it will help ensuring a good inter slice bond, the only time to be careful with the extruder temp would be on small prints when the hotter plastic remains too soft for too long. another possible cause for your inconsistent extrusion may lie with the quality of the pla... not all plastics were created equal!. I don't agree with Tony about increasing the wall thickness - should that even be possible in the slicer - as you would double the weight of the build trying to cover up a defect in the extrusion process.

Perhaps if Asda had built the electric car recharge bays at the back of their car park along with the motorhome/caravan bays the problem of bay blocking wouldn't occur...never seen a 4x4 driver walking further than necessary....

There is an entry in the manual on the HK site about checking if the ESC has braking enabled or not, perhaps you could check if the ESC is actually in the brake on mode after setting it 'on' using the programming card... https://hobbyking.com/media/file/997648571X26327X52.pdf

possibly solar powered sonic mole dissuaders.. quite popular in France with those who prefer not to kill the moles..

For what it may be worth....in my younger days when I went racing 1/8th scale buggies we had the problem of the motor cutting if the buggy was left inverted after a crash as the tank's pick up was devoid of fuel as it all fell to the new bottom of the tank.... the cure was to use a longer fuel feed line to the carb, giving more time for the marshal to place the buggy back on its wheels... I think your cure will involve having sufficient fuel in the feed pipe to sustain the engine whilst the clunk is wafting around in the breeze....

I have been using ali express for some time now instead of ebay and to some extent banggood. Ebay shipping for items from China take too long and there was usually no option other than free economic shipping - which took around 30 to 40 days in my experience. A quite recent change has some Chinese ebay sellers giving the option for faster shipping at a price but I have not tried it so cannot comment on the quoted up to 30 days delivery times. Banggood does better with their shipping - even their free shipping BUT their prices are higher normally. Ali express offer you a choice of shipping services, their free service normally arrive between 18 - 25 days and their aliexpress standard service (small charge) normally takes 12 - 20 days. Never had an order go missing and I pay in dollors with my UK credit card. Never had to test their customer service so cannot comment on that either... The secondary security asking for copies of passports or credit cards is not limited to Ali Express and only happens occasionally to new customers. Has the Chinese new year finished now? If not your order may be delayed.

Keith - if you look this particular item is advertised as only being available from the global site at the $2 price and the €12.57 price is the item from the global warehouse with free shipping so its not a moan about the cost of shipping it is a moan about changing the price between the offer and the actual.......

I see HK are advertising a sale. They sent me an email notification which caught my eye.. I thought..why not, at that price it would be rude not to buy another (I already have one) as it could be useful in all sorts of projects.....BUT ....upon adding to my basket it becomes... Ho-hum......

.....€216.69 from the global warehouse, also apparently FREE shipping from the UK to France.......

I have replaced all my old ni-mh drill batteries with a 1300mAh li-po so it fits inside the existing battery case. I recharge using a cheap HK balance charger so only the balance port socket needs to be accessible. (the main power socket is connected to the case terminals. The only problem is you must stop and charge the battery AS SOON AS you detect the drill or whatever is slowing down, if you carry on for another 5 seconds I find one cell is usually too low for the charger to allow a charge and I end up having to 'flash' the cell to bring it up to a voltage that the charger will accept. OK... I know it is no way to treat a li-po, it is either that or throw it away.

Be afraid.....be very afraid!

Posted by Bryan Anderson 1 on 17/01/2018 08:44:48: Posted by Mike Freeman on 17/01/2018 06:37:33: Posted by Tom Sharp 2 on 17/01/2018 00:36:54: How about terminals But the terminals are always labelled + & -, the cathode and anode..... I mean electrodes attached will have either a +ve or -ve charge depending on whether the cell is being charged or discharged. An anode is always positive, a cathode negative regardless of whether it is being charged or discharged. Check with a voltmeter. On charge, the current flow is reversed because the electromotive force ( open circuit voltage) of the charger is greater than that of the battery. On discharge, the emf of the battery drives the current through the load. The currents are reversible but the voltage is not. Using incorrect terminology is potentially dangerous if it misleads people as to polarity.     potentially,,,,ha ha ha! Just seen another post that explains what i was going to say in a much better way so....rest of post deleted. /0.02p Edited By MaL on 13/02/2018 15:59:33

Home made version of the Velocopter.... nice!   https://www.youtube.com/watch?v=Qf3SRQwHm5o Edited By MaL on 12/02/2018 11:04:16

Is the elevator linkage a bowden cable? Have you checked for elevator 'blow back'?

Big parcels are generally harder to lose... you should be thankful yours were oversize.