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Member postings for BackinBlack

Here is a list of all the postings BackinBlack has made in our forums. Click on a thread name to jump to the thread.

Thread: Prostate Cancer
06/08/2019 20:17:43
Posted by Andy Joyce on 05/08/2019 18:10:09:

Has anybody had the robot assisted radical prostatectomy?

Hi Andy, Yes, I had a radical prostatectomy almost 15 months ago at the Churchill, Oxford at 69 years old. It took just under 8 weeks from initial referral to my operation. I had an MRI scan, semi robotic biopsies (14!) which showed the cancer was contained within the Prostate but was advanced.

I was offered the choice of Surgery or Radiation therapy. I had decided from the outset that Surgery would be my preferred option. The prospect of 6 months or so of hormone treatment, 4 weeks of radiation, the up to 9 months or more of hormone treatment did not enthral me.

The operation was very straightforward, admitted late on Saturday morning, straight to Theatre, about 5 hours later woke up in recovery ward, even had a meal later in the evening. Left Hospital after Lunch on Sunday.

Catheter removed after 10 days, pee under control a few days after that. Also had 28 days of self injected Heparin, used to help prevent blood clots.

Erectile functions now need a little help, a small price to pay.

PSA levels now down to 0.01, so all is well.

Good Luck

Ian

Edited By BackinBlack on 06/08/2019 20:18:08

Thread: Soldering Stations
08/07/2019 20:02:55

My preferred iron is the Antex TCS50W. covers light, small work through to medium jobs such as XT60/90 connectors. I have several Antex irons (CS15, XS25 and TCS50) which have all proved reliable, the CS15 is now 40+ years old. They're British and spares are readily available. Good to get a few extra bits to cover small and large jobs.

Whatever you choose I would suggest that it has a heat resistant silicon cable, which is more flexible than the common PVC cables. Much easier to use if you don't have to fight the cable when positioning the iron for delicate work.

Finally don't use lead free solder, it erodes bits quite quickly and doesn't flow on joints as easily as traditional lead/tin multicore fluxed solder.

07/07/2019 14:45:46

Silver soldering should correctly be called silver brazing. It uses a hard silver solder which typically contains between 33 to 55% silver and has a melting point of 650C to 720C, the more silver the lower the melting point. It is primarily used for mechanical rather than electrical jointing as an alternative to brazing, which needs a hotter flame. It is an alloy containing in addition to silver Tin, Copper, Zinc and some rare metals.

Typified by it's lower melting point below 450C, Soft soldering uses lead based solder also with tin and copper plus only 2 to 6% of silver, lead free solder is again based on Tin and Copper with a small amount of silver and other rare metals it is most commonly used for electrical connections. It's also used for plumbing.

That means that if you can melt it with a soldering iron it is Soft solder, if it needs the heat of a blowtorch it is Silver or Bronze Brazing, which is much harder and stronger.

There's also Silver soldering for Jewellery, which also uses a high silver content and requires more heat.

HTH

Ian

Edited By BackinBlack on 07/07/2019 14:47:29

Thread: RPM Conundrum
10/06/2019 12:45:57

+/- 2.5%, not bad when you consider all the manufacturing, calibration and process variables.

Propeller

Motor

ESC

Wiring

Connectors

Batteries

Rx conversion/processing

Tx calibration/processing

Thread: Lil Cub
15/05/2019 21:20:00

It will be next on my building bench, which will be clear in about a week. A kit from Sarik would help in getting it in the air a little sooner.

Thread: CAA registration consulation
27/04/2019 12:26:13

David and Percy, I agree with what you say, but it does not change the inept way in which Regulation has come about.

I shall, like many others here I suspect, when the time comes register and pay my dues. I would like to think that we shall see more prosecutions for the unregistered or illegal use of drones as a consequence. I have my doubts though.

27/04/2019 11:59:33

I still find a degree of confusion in the terminology used in the Consultation document and response form. In responding to the Consultation we are asked to choose from a list where our interests lie, this acknowledges a differentiation between drones and model aircraft. The next question asks if we own a drone, Yes or No? Are they now including model aircraft or not?

From the Consultation document -

There will be no charge for remote pilots to take the required test, thereby, encouraging remote pilots to educate themselves (our research has shown that 85% of remote pilots are also drone operators);

If drones includes model aircraft what are the other 15% piloting? Or do 85% of model aircraft pilots really pilot multirotor drones?

This whole process is a farce where related to flying model aeroplanes, helicopters and multi rotor devices as a hobby/pastime. The irresponsible, unwitting or deliberate misuse of "Drones" has brought about this situation and deserves control, but not at a cost to the majority of responsible, law abiding model aircraft flyers.

The previous provisions of the ANO and CAPs relating to remote operated model aircraft and multirotor drones were, if followed, adequate to assure safety. They were never effectively policed or enforced and there is no indication that the new Regulations will be, so how have we progressed?

Regulation of commercial Drone operations is a different matter.

Thread: Variable resistors
18/04/2019 12:02:43
Posted by Doc Marten on 18/04/2019 10:04:34:

I like that idea but I'd rather have the convenience to select the power by a rotary switch rather than have to plug in/unplug leads to different outlets to select, could this be done using a rotary stepped dial switch with the resistors soldered to the pins? is there such a switch available?

Reliable low voltage DC, high current switches are almost as rare as the potentiometers.

I would ask how often do you need to adjust the current?

Chris' suggestion looks worth a try and would work with a 1 or 2s Lipo, 6 or 12V lead acid gel battery as well. There are quite a few others in the links below Chris' suggestion in that large River place.

But, as peter suggests the NiMh solution is the simplest and based on my use of NiMh glow sticks is as simple and reliable as it gets.

Edited By BackinBlack on 18/04/2019 12:04:35

18/04/2019 09:56:26

Forget variable resistors, unless you can find a 1 ohm 10 watt wirewound, a rare and expensive item. The paralleled resistor idea will not really work with the value of variable resistor you have.

You need fractional ohm resistors. For instance if your Cyclon is fully charged at 2.2V and the plug is rated at 1.5 volts 2 amps the resistance needed is (using V=IR, R=V/I) .7V/2 = 0.35ohms at 3 amps it would be .7/3 = 0.23 ohms. As the cyclon discharges at 1.9 volts, say 0.4/2 = 0.2 ohms.

Best answer is is to get four 0.1 ohm 2 or 3 Watt resistors, five banana plug sockets and wire the resistors from one socket to the next with supply from the cyclon at one end, you then have 0, 0.1, 0.2, 0.3 and 0.4 ohms available depending on which socket you use. No switches, just simple and reliable.

Thread: Prostate Cancer
08/04/2019 14:46:49
Posted by Glyn44 on 08/04/2019 07:33:38:
Posted by BackinBlack on 07/04/2019 19:38:23:

Just a year since I was diagnosed with stage 2/3 Prostate Cancer. I had had regular "finger" examinations, up to about 3 years ago as I had for some time had a need to get up during the night for a pee. Findings were only of a slightly enlarged Prostate, no need to worry. Need to get up during the night increased to 2 sometimes 3 times, mentioned this to doctor, PSA test followed immediately which showed significantly raised PSA levels. Immediate referral to Urology department at Churchill Hospital Oxford. MRI and Multipoint biopsy followed quickly, then offered either surgery or radiotherapy plus hormone treatment. I chose surgery, 4.5 hour keyhole surgery, home next day a few weeks recuperation and almost back to normal. 8 Weeks from referral to Surgery, can't praise the Churchill team enough, they were brilliant.

A year on and all is clear.

If you're over 50 PSA tests are available on demand, so if in doubt get tested, it's only a simple blood test and might avoid the consequences of Prostate Cancer.

Ian

I am, as of last Friday, at this stage. Now awaiting a bone scan to ensure the C hasn’t spread. It goes into bones apparently. I’m told that if that is clear, then I get the hormone plus radiation treatment (every day for 4 to 7 weeks)

i haven’t been offered the keyhole surgery option. Do you think I should query that? The consultant mentioned that 1 in 8 men will suffer this, so yea get checked. Early is good.

Sorry to hear that. The positive thing is that you have been diagnosed.

I can only repeat the information given to me and can offer no advice except for people to get checked out at the first signs of anything untoward.

The Oncologist I saw explained that in my case the hormone treatment would have been carried out first for a period of 4-6 months, then radiation treatment every day for 4-6 weeks, then further hormone therapy for up to 9 months.

I felt that for me surgery was less disruptive.

It is well worth looking through the MacMillan Leaflets explaining the surgery and radiation procedures and their respective benefits and downsides.

07/04/2019 19:38:23

Just a year since I was diagnosed with stage 2/3 Prostate Cancer. I had had regular "finger" examinations, up to about 3 years ago as I had for some time had a need to get up during the night for a pee. Findings were only of a slightly enlarged Prostate, no need to worry. Need to get up during the night increased to 2 sometimes 3 times, mentioned this to doctor, PSA test followed immediately which showed significantly raised PSA levels. Immediate referral to Urology department at Churchill Hospital Oxford. MRI and Multipoint biopsy followed quickly, then offered either surgery or radiotherapy plus hormone treatment. I chose surgery, 4.5 hour keyhole surgery, home next day a few weeks recuperation and almost back to normal. 8 Weeks from referral to Surgery, can't praise the Churchill team enough, they were brilliant.

A year on and all is clear.

If you're over 50 PSA tests are available on demand, so if in doubt get tested, it's only a simple blood test and might avoid the consequences of Prostate Cancer.

Ian

Thread: DX9 problems
27/02/2019 19:52:15

UK service agent is Al's Hobbies. Helpful people. Als Hobbies

Edited By BackinBlack on 27/02/2019 19:53:02

Thread: Programming AR636A
20/02/2019 20:03:54

Hi Mike, I think you may have to persevere with registering the receiver. I have several AR636 Rxs and had to download a new sprmx file for each one as the files appear to be locked to one serial number.

Good Luck

Ian

Thread: Chisel Headed Scalples
25/01/2019 17:59:20

See Here:

Scalpels and Blades.

Ian

Thread: World Models Pilatus Porter P6
21/01/2019 18:30:17

I gave up on cheap clamps, as you have found they fly apart. I now use those from Wilkinson hardware stores, they come in 3 sizes and work well.

Old fashioned "Bulldog" and spring type paper clips are also very useful, almost too many sizes to choose from.

Ian

Edited By BackinBlack on 21/01/2019 18:33:03

12/01/2019 12:31:43
Posted by Dad_flyer on 11/01/2019 19:20:11:
Re lipo postage: backinblack shows what I have seen when looking, no lipo allowed - for individuals via the post office. However patmc gives 'account customer' rules which say yes. So whether you can send lipo depends whether you send enough for an account, which is probably enough for direct collection from the sender.

I can only think that the differentiation between private and account customers is only to identify a bona fide sender.

11/01/2019 10:10:49

Not the first time I've seen LiPoly batteries incorrectly described.

Whether it's a deliberate act to circumvent the postal regulations I cannot comment, however under Parcelforce and Royal Mail Ts & Cs the carriage of any new Lithium batteries not connected or part of an electronic device is not allowed

Extract from Ts & Cs on Parcelforce website on what may be sent:

Batteries, specifically new and used lithium batteries when not sent with or connected to an electronic device. No No
Thread: Laminating
10/01/2019 21:13:37

I use a method that was described in an early 80s issue of Radio Modeller which has proven to make strong and reliable laminated sections ever since.

The joint surfaces of the parts to be laminated are brushed with a thin coat 70/30 PVA/water mix and allowed to dry thoroughly. When dry bring the parts together in their final position and apply a domestic iron preheated to "cotton heat" for a minute or so. As the PVA is heat sensitive it will form an excellent bond and the iron being flat will hold the lamination flat.

I have some models that have used this laminating method for fuselage formers that date from the 80s which are still structurally sound. I have even used this method with thin ply sheet place of fibreglass bandages for wing joining, far neater and stronger.

Thread: Aeroloop model retriever
05/01/2019 18:04:59

why not just use a carbon fibre fishing pole with a cord loop attached to the end, probably cheaper.

Edited By BackinBlack on 05/01/2019 18:10:22

Thread: New Tv. It's Good But...........
03/01/2019 14:05:20

4G interference is becoming a more common problem on SD channels.

There are solutions, see here:

**LINK**

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