Model Boat Mayhem

Mess Deck: General Section => Chit-Chat => Topic started by: Klunk on September 08, 2016, 11:46:42 pm

Title: Micro blow torch
Post by: Klunk on September 08, 2016, 11:46:42 pm
I'm needing to do some brazing on stanchions  etc.
I have the normal massive blow torch but am looking for recommendations for a small torch.
Title: Re: Micro blow torch
Post by: derekwarner on September 09, 2016, 01:01:24 am
A few choices Klunk.......depending on the size of the stanchions.....

The pencil torch was about $12.00, the larger but still hand held approx. $18.00...both refillable.....both adjustable flame,  both rated to 2000 [F] degrees flame temperature. The largest canister mounted torch is only used for preheat soaking if silver soldering

Using heat sinking including wet kitchen paper towels is a great way of soldering.....I have even immersed a small copper tube component in a 4" vice & then placed the vice in 2" of water as a heat sink.....

The possibilities' are endless  O0......Bakers soldering flux is also a good standby  :-))... Derek
Title: Re: Micro blow torch
Post by: Klunk on September 09, 2016, 01:41:49 am
I'm looking for a pencil torch one. I have most of the others.  Heatsinking is the easy part. I've heard night mares about pencil ones. I have one at present but it doesn't hold gas! Is there a decent brand I could buy as all the ones I see are cheap and nasty and run off lighter gas.
Title: Re: Micro blow torch
Post by: verithingeoff on September 09, 2016, 07:01:11 am
I'm well into model steam engines and use a pencil torch a lot. I use this one http://www.ebay.co.uk/itm/Roburn-Butane-Micro-Blow-Torch-MT-770-MT-790-/152026003616. I can anneal pipe upto about 3/16" put all the connector ends on and even solder a small boiler endcap back on. Highly recommended. I use a 220gramme butane refill, a job lot of 10 for $7 at Mitre 10 a couple of years ago! (http://i80.photobucket.com/albums/j183/gwa_2006/Avatars%20etc/ozzhatcorks.gif) (http://s80.photobucket.com/user/gwa_2006/media/Avatars%20etc/ozzhatcorks.gif.html)
(http://i1375.photobucket.com/albums/ag473/geoff122/Model%20Steam/Stuart%20Turner/IMG_8279_zpssg4pjj9d.jpg) (http://s1375.photobucket.com/user/geoff122/media/Model%20Steam/Stuart%20Turner/IMG_8279_zpssg4pjj9d.jpg.html)
Title: Re: Micro blow torch
Post by: J.beazley on September 09, 2016, 07:29:13 am
I own a Dremel one it's fantastic if a little expensive at 30-40 but the heat is adjustable and you get a few attachements to aim with most things model related soldering is easy and brazing brass together has never been so easy just don't forget to get decent solder and flux
Title: Re: Micro blow torch
Post by: timgarrod on September 09, 2016, 10:52:24 am
I brought a Pencil torch last year and lasted about 10min  >>:-( .

went to the town and brought one like this and find it brillant http://www.ebay.co.uk/itm/like/262417284047?lpid=122&chn=ps&googleloc=1006674&poi=&campaignid=620865095&device=c&adgroupid=27378760866&rlsatarget=pla-181484342466&adtype=pla&crdt=0 (http://www.ebay.co.uk/itm/like/262417284047?lpid=122&chn=ps&googleloc=1006674&poi=&campaignid=620865095&device=c&adgroupid=27378760866&rlsatarget=pla-181484342466&adtype=pla&crdt=0)
Title: Re: Micro blow torch
Post by: grendel on September 09, 2016, 12:27:56 pm
I have the camping gas one, as far as I can tell its still working on its original cylinder, but the cylinders are tricky to get nowadays
Title: Re: Micro blow torch
Post by: grendel on September 09, 2016, 12:31:29 pm
http://www.a2zcamping.co.uk/user/products/large/coleman-spotflam-cordless-soldering-iron.jpg
this one
Title: Re: Micro blow torch
Post by: Mark T on September 09, 2016, 05:37:51 pm
This is the one I use and its great.  It has a micro blow torch, soldering tip and hot air tip for heat sink wrapping.  I swear by mine and I've never had a moments trouble with it either. 


http://www.maplin.co.uk/p/pro-iroda-solderpro-70w-gas-soldering-iron-kit-n13ar


As for the cheap pen type one's - well I threw mine away when the handle caught fire only on the second time that I had used it  <*<
Title: Re: Micro blow torch
Post by: ballastanksian on September 11, 2016, 06:10:01 pm
I found the cheap pen like ones do not hold a second fill of gas. Its something to do with the cheap nasty valve so don't go for these.