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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.

Thread: Keeping the workshop cool
23/07/2021 06:16:31

Martin, the wax beads idea, although probably not for me, is very intriguing and has given me something to follow up on for interests sake at least, thank you.

As I suspected, my options are fairly limited. I may have to just wait this out for the moment. Thanks for all those who were able to give some ideas, there was certainly a lot of food for thought.

22/07/2021 12:16:03

I don't have any loft insulation; the peaked roof is very tall but I would have to put in a ceiling to insulate it, or I suppose insulate under the tiles directly. I guess the advantages would be year round if I did.

During the colder weather I seriously thought about putting a fan and ducting to take the hot air from the peak down to the floor level; any hot air you introduce into that space with a heater soon disappears vertically!

22/07/2021 10:21:22

Working shifts I'm finding time in the workshop is precious, and right now the only time available is in the afternoon after my workshop has been heat-soaking in the sun all day. It's a high tile-roofed single garage in a block of other garages. No door other than the main one. The rear wall faces out onto a domestic garden so I can't easily put ventilation in.

Does anyone have any tips for reducing the temperature in there please? It's unusable at the moment as its routinely hitting 35 degrees, and even with fans trying to drag the air out its really not helping much.

I know this weather is due to break soon but its a recurring problem whenver it gets a bit warm. I'd be interested in how the model engineers in hotter climates than the UK cope (other than being made of sterner stuff than I).

Thank you,


Thread: Mobility scooter spares
19/07/2021 10:41:50

I did. Dealing with the smarmy manager who dealt with it left me feeling quite greasy and grubby. It was a relatively large chain.

Thread: Best soldering iron for electronics
19/07/2021 09:36:04

I've always liked Antex soldering irons, they are good tips for fiddly work, but they are adaptable enough for other tasks. I've never really mucked around with thermostatic irons other than at work (where they tend to get whacked onto 330 for leaded solder and then left alone), at home I've always just used a non-adjustable item. I believe you would probably be fine with a CS18 or XS25, but of course this is just my opinion.

Thread: Mobility scooter spares
19/07/2021 07:02:55

I use a push pull hand control system on my car as I'm missing a leg. The hand controls add around £650 to the cost of every car. I used to make my own, to an almost identical design, for about £30. I didn't ever have much money.

Who can justify spending £650 on modifying a £500 car that probably would only last a year before being thrown away in favour of another car which has 12 months MoT on it? Usually the car I was disposing of was being got rid of due to an electronics failure that had eluded a cheap fix.

I think markets that have a captive audience get exploited. My wife put a 3 inch scratch in a neighbours bumper while parking a couple of years back. We went and told them, and they said as long as it was put right at a good bodyshop they didn't think we needed to go through insurance. I wish we had... The list of charges from the bodyshop included £5 for putting a disposable cover on the drivers seat, and £150 to go to Citroen to reset any error messages that "may" occur (not did occur) as a result of unplugging the parking sensors. That small scratch ended up costing us a few grand. But of course, the insurance companies would just pay it normally, so the prices keep rising...

Thread: Vehicle reversing sensors
18/07/2021 00:44:55

If its anything like aircraft radar, and the signal being transmitted by both was the same (same make and model of sensor maybe?) then I see no reason why one sensor wouldn't be spoofed by the other.

That being said it does expose my ignorance on these sensors. Do the different sensors on the same bumper not interact with each other due to a unique Pulse Repeition Frequency or similar? Interesting stuff....

Thread: Scale gearbox (or how I leaned to love aluminium)
15/07/2021 21:07:47

What a lovely bit of engineering! Now my next question is, can we see the rest of it!

Thread: Walker Midgley Insurance for Model Engineers
14/07/2021 18:55:23

I have messaged them regards some clarification of wording, for example it says that they will only honour a claim if the property is occupied. I'd like to find out if that means being lived in, or actually has people in at the moment of damage or theft... I know it sounds like a daft question but I'd feel more daft if my claim wasn't honoured! More importantly I wanted to know if my workshop is covered as it is remote from my house, but I've yet to hear back.

Thread: General mill engine design
14/07/2021 16:48:34

Do you plan to run on air or steam? Your valve timing will be dictated by your choice. I'm currently doing a similar project. As with yours, I want it to run very smoothly at low pressure and speed so as to be a nice display engine.

Thread: Lathe cover
14/07/2021 15:28:25

I used one from screwfix that has been very good so far.

14/07/2021 14:48:45

I think the lathe cover being porous is a question that divides people: my opinion is that I would rather trapped moisture could escape, however I understand your reasons for asserting that it should be a solid barrier.

As for a machine heater, I have heard of people placing a small bulb (such as a cooker lamp) under their slideways to keep the temperature at a sensible level.

14/07/2021 14:12:59

I use an old wool blanket to stop rapid changes of temperature of the lathe; breathable but able to reduce the risk of sharp temperature gradients that would encourage moisture formation. It's the same blanket my grandad used on the lathe when he bought it new. My workshop is now dehumidified anyway so its more habit than anything, but it's worked for him and his was a workshop cut into a damp hillside with no heating.

Thread: Can't get the hang of HSS!
13/07/2021 15:50:56

Can you show us the HSS tool please? Maybe that will help with diagnosis. Don't lose hope!

Thread: Driving style predicts Alzeimer’s …
13/07/2021 14:56:42
Posted by martin perman on 13/07/2021 11:38:45:

Just spent four days at the Goodwood festival of speed, 280 mile round trip towing my flat pack caravan, only problems I had was younger drivers who dont seem to know what the pretty orange lights are for on their cars, very speed conscious as towing above 60 mph does seem to draw attention to you.

Martin P

I'd imagine towing above 60 would draw attention, isn't the limit 50?

Funny you mention that its always younger drivers that forget to indicate, I usually find the older drivers the guilty parties, especially on roundabouts. I suspect all age groups are guilty, we just perceive one particular group at fault.

Thread: Audio electronics question - PSU for PC speakers
09/07/2021 00:01:21

Apparently its a 2.9A adaptor.

That would be for worst case scenario, I'd imagine for most uses you'd get away with the one you have mentioned, especially on a "freebie"

Edited By Jon Lawes on 09/07/2021 00:02:33

Thread: Sieg SX2 or SX2.7
07/07/2021 15:27:06

Dare I even say it...

I was thinking about the 2.7 but went for the SX2.7L.

I figured you can add things like a DRO and such later but a larger bed means you can do larger items, and its not an easy thing to retrospectively add.

Thread: Vintage Tools
03/07/2021 19:34:49

Thanks for this, just up the road from me and I had no idea it was there.


Thread: Mc Donald Model tractor
02/07/2021 22:55:22

Forgive me for saying it but this is just the sort of thing I love to read about in the Model Engineer magazine. The quality of the workmanship and the writeup would make for a fantastic series.

Thread: WHAT IS IT ?
27/06/2021 21:32:43

It reminds me of the Lufkin thread size circular calculators, if thats not too grand name for them (they are much simpler than this).

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