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Post by 92220 on Aug 14, 2020 19:04:43 GMT
Hi Roger.
You could also use a hot air gun to get a higher temperature....possibly your solder station hot air gun would do the job and not send out so much heat that the cardboard risks catching fire. I would guess the applied heat can be adjusted by varying the distance away the gun is.
The desiccant air drier idea is a good one! I must investigate this more! Chris's idea of the activated charcoal filter to remove the oil is also a good idea worth following up.
Bob.
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Post by Roger on Aug 14, 2020 19:39:13 GMT
Hi Roger. You could also use a hot air gun to get a higher temperature....possibly your solder station hot air gun would do the job and not send out so much heat that the cardboard risks catching fire. I would guess the applied heat can be adjusted by varying the distance away the gun is. The desiccant air drier idea is a good one! I must investigate this more! Chris's idea of the activated charcoal filter to remove the oil is also a good idea worth following up. Bob. Hi Bob, I hadn't thought about a hot air gun. Mine is for PCB work, so it's not that powerful. It might be ok to boost the temperature once it's already hot though. I'll give it a try. It goes up to 400C I think, but you'd never get the frames anywhere near that hot. a high temperature like that does help in transferring heat though. I've been looking at the available 3 stage filters, so see what that's all about. Most of which are very expensive, in the £500+ range, but I did find this one for £150 which is much more reasonable. The specification of the activated carbon section says this... "Finally a Green Activated charcoal filter that traps any biological particles and any remaining oil vapour and odours giving technically absolutely clean air to give filtration down to 0.003ppm for the highest demanding air applications and provides safe, breathable air for the spraybooth." I can see that this is sensible if you're feeding the mask with air that has to be breathable, but it sounds like the other filters remove the oil too. Whether there's any measurable benefit for the spray gun is debatable in my opinion. However, seeing as this triple filter is such a good price, and the replacement filters are cheap too, I've just ordered one.
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dscott
Elder Statesman
Posts: 2,438
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Post by dscott on Aug 15, 2020 2:06:03 GMT
I have been enjoying using the very high heat paints that do need a hot air gun to help cure. I will be using mine to expand some metal to free it up on the filing machine just also rescued. They also have been known to save Barbecues when lit far too late!!!
Halfords being within walking distance have a lovely range including a light Blue if you are persuaded to model that particular Locomotive. The red is lovely on buffer beams. Paint Services are even closer and I feel a walk over to get some Myford Grey now we have a second Super 7. Bit like a rescue pet at the moment saved from going into a skip poor thing.
Yes a month without a computer down in Plymouth so a BINGE read on painting and filtering air was very enjoyable.
David and Lily
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Post by steamer5 on Aug 15, 2020 7:40:53 GMT
Hi Roger, One of the articles I read on powder coating the gent made a "box" to sit on the door of his oven, the door hinged along the bottom edge thus doubling his available oven space....just a thought! IF you don't have a paint oven domestic bliss would be seriously compromised by doing this indoors!
Its going to be interesting to see how your new filter & cleaned hose go at improving things!
Cheers Kerrin
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Post by Roger on Aug 15, 2020 8:16:34 GMT
Hi Roger, One of the articles I read on powder coating the gent made a "box" to sit on the door of his oven, the door hinged along the bottom edge thus doubling his available oven space....just a thought! IF you don't have a paint oven domestic bliss would be seriously compromised by doing this indoors! Its going to be interesting to see how your new filter & cleaned hose go at improving things! Cheers Kerrin Hi Kerrin, If you went back far enough in my thread, you would see an enclosure I made for the oven from kitchen foil for this purpose. It didn't go down well though, so I thought I'd do it differently this time. So as of today, I've not only got the new filter on the compressor, but I'm adding this second completely separate three stage filter arrangement which could have replaced my original one, but instead will go in the garden office. The thinking being that my general purpose air for the workshop and shot blaster doesn't need to be super clean, so that can use the original system which is plenty good enough. The only reason I need better air is for paint spraying, and there's little point in contaminating these new filters unnecessarily. This way, the new three stage filters ought to last forever.
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Post by 92220 on Aug 15, 2020 8:50:07 GMT
Hi Roger.
Thanks for that info. I've just looked at that listing for the 3-stage filter. It does look ideal! The price is good too. I shall get one for my set-up.
Bob.
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Post by Roger on Aug 15, 2020 10:54:50 GMT
A bit of a change of tactics on the painting of the frames. This time I'm going to fill the blemishes prior to priming. They aren't massive marks, but they show up when you get any kind of shiny surface. I don't want to have to clean it off everywhere, so I've masked the bits that could benefit from a bit of attention. It's mostly riveting marks and holes that were on the LBSC frame plan that are no longer used. 20200815_113835 by Roger Froud, on Flickr I bought this filler spray years ago when I made the Fiberglass Windmill Blades for my Dad's windmill. I used it for filling the plug for the mould, and it worked really well. 20200815_113851 by Roger Froud, on Flickr I'll mask up the other side and give it the same treatment. Hopefully the primer won't react with it! We'll soon know. 20200815_114253 by Roger Froud, on Flickr
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uuu
Elder Statesman
your message here...
Posts: 2,812
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Post by uuu on Aug 15, 2020 12:46:15 GMT
We all already knew you were mad, so didn't really need any further confirmation. I must remember to bring a torch and magnifying glass when I get the opportunity to see the loco, so I can squat down and peer between the spokes to check you've done a good job.
And maybe a hard hat.
Wilf
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Post by Roger on Aug 15, 2020 20:45:27 GMT
While I'm waiting for the filler to dry, I thought I'd print out the holder that I originally had planned for the Smokebox Saddle but didn't use in the end. Now I've decided to completely spray this separately then fit it and mask it up when I spray the frames. It's much easier to spray around all the tiny bolts under the flange with this separate. I've also added some filler to the small gap where the angled part meets the side plate on one side. 20200815_194641 by Roger Froud, on Flickr I've swapped the original handle too many times between the two spits I've made, so I thought it was about time that I printed out a second one. If you recall, this is what's called a 'Print in place', which means that the handle and the grip that turns are printed at the same time. There's a clearance everywhere except for at the base of the knob. At that point, there's a thin ring that supports the two pieces. That get sheared off when it's finished to release the knob from the handle. It's a technique that works pretty well. 20200815_194124 by Roger Froud, on Flickr
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Post by 92220 on Aug 16, 2020 8:21:28 GMT
Hi Roger. You could also use a hot air gun to get a higher temperature....possibly your solder station hot air gun would do the job and not send out so much heat that the cardboard risks catching fire. I would guess the applied heat can be adjusted by varying the distance away the gun is. The desiccant air drier idea is a good one! I must investigate this more! Chris's idea of the activated charcoal filter to remove the oil is also a good idea worth following up. Bob. Hi Bob, I hadn't thought about a hot air gun. Mine is for PCB work, so it's not that powerful. It might be ok to boost the temperature once it's already hot though. I'll give it a try. It goes up to 400C I think, but you'd never get the frames anywhere near that hot. a high temperature like that does help in transferring heat though. I've been looking at the available 3 stage filters, so see what that's all about. Most of which are very expensive, in the £500+ range, but I did find this one for £150 which is much more reasonable. The specification of the activated carbon section says this... "Finally a Green Activated charcoal filter that traps any biological particles and any remaining oil vapour and odours giving technically absolutely clean air to give filtration down to 0.003ppm for the highest demanding air applications and provides safe, breathable air for the spraybooth." I can see that this is sensible if you're feeding the mask with air that has to be breathable, but it sounds like the other filters remove the oil too. Whether there's any measurable benefit for the spray gun is debatable in my opinion. However, seeing as this triple filter is such a good price, and the replacement filters are cheap too, I've just ordered one. It is, by far, the cheapest filter unit Hi Roger. Thanks for the info on the filter unit. I too have just ordered one. They are really good value compared with others on the market. Bob.
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Post by Roger on Aug 16, 2020 9:13:58 GMT
Hi Bob, I hadn't thought about a hot air gun. Mine is for PCB work, so it's not that powerful. It might be ok to boost the temperature once it's already hot though. I'll give it a try. It goes up to 400C I think, but you'd never get the frames anywhere near that hot. a high temperature like that does help in transferring heat though. I've been looking at the available 3 stage filters, so see what that's all about. Most of which are very expensive, in the £500+ range, but I did find this one for £150 which is much more reasonable. The specification of the activated carbon section says this... "Finally a Green Activated charcoal filter that traps any biological particles and any remaining oil vapour and odours giving technically absolutely clean air to give filtration down to 0.003ppm for the highest demanding air applications and provides safe, breathable air for the spraybooth." I can see that this is sensible if you're feeding the mask with air that has to be breathable, but it sounds like the other filters remove the oil too. Whether there's any measurable benefit for the spray gun is debatable in my opinion. However, seeing as this triple filter is such a good price, and the replacement filters are cheap too, I've just ordered one. It is, by far, the cheapest filter unit Hi Roger. Thanks for the info on the filter unit. I too have just ordered one. They are really good value compared with others on the market. Bob. Hi Bob, If you scroll down on the filter page, you'll see the related items which lists the individual prices for the replacement filter elements and a combined set. All very reasonable.
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Post by 92220 on Aug 16, 2020 16:43:06 GMT
Thanks Roger. Much appreciated!
Bob.
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Post by coniston on Aug 16, 2020 19:31:14 GMT
Hi Roger, very interesting to follow your trials and tribulations with painting. Applying paint is really more of an art than a strict science. When I painted my Torquay Manor I used 2 pack etch primer filler as used by the automotive trade. I used 1200 grade wet and dry (used wet with soap) to flat it all down to get a really nice smooth surface before the top coat. It filled all the blemishes and I didn't really have any problem with too much on the detail parts, it's not that had to flat off around rivets etc. I did have to contend with several different metals, cast iron, steel, Zintec and brass so was advised this was the best option to use.
Keep at it, it will be a lovely loco when finished.
Chris D
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Post by Roger on Aug 16, 2020 21:47:33 GMT
Hi Roger, very interesting to follow your trials and tribulations with painting. Applying paint is really more of an art than a strict science. When I painted my Torquay Manor I used 2 pack etch primer filler as used by the automotive trade. I used 1200 grade wet and dry (used wet with soap) to flat it all down to get a really nice smooth surface before the top coat. It filled all the blemishes and I didn't really have any problem with too much on the detail parts, it's not that had to flat off around rivets etc. I did have to contend with several different metals, cast iron, steel, Zintec and brass so was advised this was the best option to use. Keep at it, it will be a lovely loco when finished. Chris D Hi Chris, I've not heard of etch primer filler before, that sounds useful. Hopefully with all the bigger blemishes filled in, I'll be able to get it flat enough after a couple of coats of primer sanded back. Some of the places where I've got rivets make those all but impossible to get in there and sand if they're not good enough. Things like buffer beams don't present quite as much of a problem though. Thankfully, I'm mostly dealing with Steel assemblies. The Pannier Tanks are the only parts that are Brass, with the exception of the Backhead cladding. Mercifully there are few nicks and marks on most of it, so there won't be much need for filler. It's certainly challenging to get a decent finish all over a large area with fiddly bits on it too.
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Post by Roger on Aug 17, 2020 9:38:05 GMT
I'd left the workshop door open while watching the Grand Prix yesterday, and found I'd got a new workshop assistant curled up on the floor when I went back! He wasn't going anywhere, so I picked him up with some welding gloves and put him outside. He was surprisingly heavy, and didn't move other than to roll even tighter into a ball. 20200816_203234 by Roger Froud, on Flickr Half an hour later and he was still rummaging around in the borders. 20200816_205343 by Roger Froud, on Flickr
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Post by gwr14xx on Aug 17, 2020 11:21:05 GMT
If he is still active during daylight hours, contact the local hedgehog rescue - hedgehogs normally are only active during the day if they have a problem.
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Post by Roger on Aug 17, 2020 17:18:38 GMT
If he is still active during daylight hours, contact the local hedgehog rescue - hedgehogs normally are only active during the day if they have a problem. Ok, will do. I can't see him anywhere at the moment.
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Post by delaplume on Aug 17, 2020 19:03:19 GMT
and don't forget they come with "Passengers" as part of the fun package........As you've handled him you might want to boil all the clothing you were wearing that day otherwise ( itch ) you might find ( scratch ) that you have ( rub ) more than you bargained for ( itch, scratch, rub, arrrghhhhhhhhhh !! )...ping....pong.....ding.....jump....leap, .etc, etc...
And if you have any furry pets get them treated with repellant powder....In this hot weather they multiply quicker than a chain re-action..
PS}---- do you find yourself unconsciously having a scratch, just at the mention of them ???
A quick way of detecting them is to leave some plates of milk out, wear white or light grey clothing }---- they are attracted to the light shades it seems.......Duct tape rolled sticky side out is an easy way of removing them from clothing....
Not long after my divorce, and with a 3-bed semi to care for on my own, I suffered an infestation...........It took an age to destroy them all but I got there in the end....
Enjoy !!
Alan
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Post by coniston on Aug 17, 2020 20:43:57 GMT
I'd left the workshop door open while watching the Grand Prix yesterday, and found I'd got a new workshop assistant curled up on the floor when I went back! He wasn't going anywhere, so I picked him up with some welding gloves and put him outside. He was surprisingly heavy, and didn't move other than to roll even tighter into a ball. 20200816_203234 by Roger Froud, on Flickr Half an hour later and he was still rummaging around in the borders. 20200816_205343 by Roger Froud, on Flickr Interesting he found the 'Hedge Hog' golf cart wheels
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Post by 92220 on Aug 18, 2020 13:53:44 GMT
Hi Roger.
My filter unit arrived today. I am well impressed, for the price, and speed of delivery from ordering!!
Bob.
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