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Member postings for Jon Lawes

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

21/10/2019 14:48:01

One quick question; could those who bemoan the lack of exhibits have brought items of their own to display if they did not already? Maybe one constructive suggestion would be to make it easier for individual models to be displayed. I appreciate that for this to happen one would need to be at the show from the start and to remain there until the end...

Thread: DIY glass fibre pulley?
06/10/2019 18:59:41

I've machined carbon fibre components in the past and even the most hardwearing tools get very blunt tediously quickly. And the mess it makes..... I can understand your logic (my workshop runs on scraps other people throw away) but in this case it sounds like a lot of mess, work and risk to health to save yourself the price of a few beers.

I hope that comes across the way it is intended; I mean no offence.

Thread: Merryweather Steam Fire King self propelled
06/10/2019 16:20:51

Thank you Werner, very interesting.

06/10/2019 16:20:50

Thank you Werner, very interesting.

Thread: Worried
26/09/2019 21:58:16

What a miserable bunch. Light a candle rather than cursing the darkness.

I don't know how many hoops to a rood or chains to a gill, but then I also don't have rickets or TB, so swings and roundabouts.

Thread: Complete newbie question - RC car from scratch
20/09/2019 21:36:59

Another quick point, Nitro is fun and all, but a good electric brushless setup with a lipo is simple, clean, rapid charging (but you need the right charger) and astonishing power. Way more reliable than nitro and more cost effective too.

20/09/2019 21:34:05

..and I came from an RC10 background!

I think the hardest part of the build is likely to be finding a suitable gearbox; may I suggest something like a tamiya DT-02 gearbox? It takes a standard 540 sized motor (the most popular motor size, so it allows you lots of interesting brushless upgrades) and has an integral diferential with output to dogbone style drives that should be easy to build. Many people buy tamiya kits to seperate out to sell on auction sites for those that require spares so the bits will be easily found. It also has convenient mounting points to allow it to be mounted to a simple frame.

I would suggest you look at the design of the Kyosho 2wd buggies such as the Tomahawk; for all intents and purposes this is two pieces of solid square section bar bent up at an angle at the front, and joined together with flat plates for the speed controller, radio gear and such. the motor hangs off the back.

Flysky 2 channel 2.4GHZ radio gear such as the GT2 will be ideal for this project; it's cheap and reliable, and when you want to add another car you just spend another fiver on a receiver and pair it to the transmitter.

Thread: Any interesting lathe projects for beginners?
17/09/2019 21:12:45

It's possible to get some amazing results from filing, with practise. I don't have a mill so I do things like that on a vertical slide, but if I ever get the space and cash I'll be first in line for a mill.

Thread: Dewhurst reversing switches
17/09/2019 21:07:48

I have installed another switch inline with my dewhurst and only use it for reversing. I got bored of cleaning nadgered contacts.

Consider that rather than lacking in common sense it might be that beginners such as myself has less mentoring available. Although its fairly obvious you should take the chuck key out before starting the lathe I suspect many experienced people (and myself) have done it anyway by mistake. The Dewhurst switch looks like it should do the job but doesn't; common sense didn't help me with that. I just assumed it was fit for purpose (wrongly).

Common Sense isn't dead. But you get knowledge through being taught or learning yourself. One of the guys I used to work with refused to have an apprentice as he said he would probably take his job one day. Blame people like that if there is a decline in young skills.

Thread: Any interesting lathe projects for beginners?
16/09/2019 21:54:11

It's a bit of a cliche but a nice pen is a good thing to make; I used brass and its got a real weighty, quality feel. I recessed some neodymium magnets into the body and made the cap out of Martensitic stainless steel so it would be retained by the tiny magnets. I used a fisher space pen refill for the interest of using a pressurised ballpoint.

With your woodworking skills you could make a spalted walnut finger grip for the pen barrel, or similar.

Thread: West Wiltshire Society of Model Engineers
13/09/2019 05:59:25

This is running again tomorrow, and a lovely show is lined up with good weather scheduled. The show is at the White Horse Country Park, Westbury, Wiltshire, BA13 4LX.

Thread: Parting Off
30/08/2019 09:31:27

I think the "smart-ass" comment was intended in a friendly manner. It was a very tame and light hearted bit of welcoming chat by the person who posted it. Whilst I agree a forum should be welcoming and not overly critical I think it is possible to have a slightly too thin skin, or we would only want to converse with sycophantic robots.

You are very welcome, and I am interested in your posts. Teething troubles with posting on forums are to be expected especially as there are so many different types of forum out there!

Thread: Searching for an Off-The-Shelf, Light-Duty, Rack & Pinion
31/07/2019 21:25:54

The other day I saw a scrap built go-kart that used an interesting bodge as a rack and pinion; a straight piece of square rod for the rack with a short length of chain tack welded to the top. It certainly made me think.

Thread: Guess the Chemical?
29/07/2019 18:53:33

When posted on to Harriers a rite of passage was to drink a glass of the de-ionised water used for injection into the engine when hovering. It might have just been water but you'd spend the day in the toilet.

Thread: Laser cutting service
29/07/2019 18:40:16

Another recommendation for Model Engineers Laser, they have helped me out on two projects now with excellent results.

Thread: Hi from Worcestershire
27/07/2019 21:23:30

Thats a great engine to start with, you may find this website useful.


Thread: Acetone
27/07/2019 21:20:08

Loads of aircraft engineers on this forum, I think we gravitate to this hobby.

Thread: Recent threads
15/07/2019 02:59:21

The internet isolates people from the conversation. I try (but don't always succeed) to stick to the rule of "Would I say this to that persons face if we were having a pint in the pub?".

It's very easy to forget that at every one of these keyboards is a person. The nature of connecting so many people, even in a small field like this, is that you are going to find a lot of people you disagree with.

Thread: V-Twin 100cc Design & Build
10/07/2019 15:37:01
Posted by John MC on 10/07/2019 15:24:32:

I see the incorrect mounting of rolling element bearings in the model engineering world all too often, has there never been an article in ME to show the right way?


That's a great idea, I'm sure they would be very grateful.

Thread: Model Engineering Overseas
24/06/2019 18:29:43

Somebody at a model engineering show I attended was showing some nicely made Stuart engines made from their castings. I asked him about them and apparently he had made them onboard a serving Submarine. The only problem he has was having to ask permission to turn it on in case they needed silence for listening or not being heard!

Red October's Captain: "So what is it, Resolution class? Oberon class sub?"

Hydrophone operator: "....I's an ML7 Captain...."

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