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well i just tried to glue a piece of mildsteel to the cromoly(?), 3mm thick both parts, used 6013 rod 95 amps, looks not bad..unfortunatelly i'm not so good to upload pics on this board yet..
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General Discussion / Re: Corona Virus
« Last post by FAT-TOY on Yesterday at 10:00:26 PM »
   Why is this woman still Premier of NSW?  If she refuses to stand down her health minister and or get rid of the person responsible for letting these 2700 odd passengers off that cruise ship then she has to go.
   These arseholes by releasing the passengers, and rushing them through customs, have indirectly caused the death of innocent Australians.  All because of their incompetence and failure to follow the rules.  I watched an interview tonight with a bloke who just lost his wife because NSW health did not do the right thing, hard to watch.
  But I suppose some won't agree with me and will be happy to let thing sort themselves out, the trouble is these parasites always seem to be able to find a way to keep their jobs and stuff everyone else.
  Anyway how are you blokes handling the lock down?  At 70+ I find that it is certainly the smartest option for me and there are worse things to do than playing in the workshop everyday.  Hope all on here and their families get through this okay.
  My grandson said to me today, if this virus was transmitted to humans from animals, then why can't it be spread to all other animals from us?  Sobering thought.
   
    Zane
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General Discussion / Re: Parcel deliveries
« Last post by geoff on Yesterday at 09:33:31 PM »

Just had some CZ spare delivered from Gerard Copping in the UK last Friday, plus they came fairly quickly and although tracked my Postie leaves everything behind the garden wall! Top man who always looks after me.
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General Discussion / Parcel deliveries
« Last post by drums'n fins on Yesterday at 06:56:10 PM »
Are you guys still getting stuff delivered from overseas and interstate?
Last 3 items I was expecting on Ebay ended up MIA - no biggie I got refunded on 2, still working through the 3rd one now. These were late January / early Feb purchases that I thought wouldn't have been caught up in the restrictions, just wondering about future purchases?
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here in italy these BETA frames (and also complete bikes of this era) are pretty commons and low priced too..actually i already built a twinshock XT250 with the original XT frame (KLX250 swingarm\IT250 forks);  the bike is nice and goes well, has been my daily drive for the last 4 seasons (april - october i use only 2 wheels for everyday moving)..only problem: it's a bit too long wheelbase (1500mm): this doesnt hurt the handling at all: i can U turn at low speed just as with a Vespa.. it's the look that i dont like 100 percent..

back to the welding: i guess back in the days these frames where welded with oxy\acetiline torch..
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Tech Talk / Re: any of you guys did built his own vinduro bike from the frame?
« Last post by Wasp on Yesterday at 02:11:40 PM »
I do have A3 color chart from Uni days , but can not upload pics . So I found this for you https://en.wikipedia.org/wiki/Spark_testing
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Tech Talk / Re: any of you guys did built his own vinduro bike from the frame?
« Last post by Wasp on Yesterday at 10:13:28 AM »
thankyou guys; actually i'm now thinking to modify a BETA 250 1977 frame to put in a yamaha XT250 2 valves motor (the goal is to build a little HL..do you now if this particular frame is made in cromoly? can i stick weld on this? if yes what rods i should use? the bike will be not raced or jumped in any ways..actually i use the bike on tarmac for 99%, albeit roads are not so smooth here

Use the grinder on a part of the frame that does not matter . The sparks will tell you straight away what it is . If you are not familiar with the austenite or cementite structure of steel , get some body to take a pic of the sparks and then compare it on the net or a good tradesman for ID. Hope that helps.
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Beta frames are a bit rare , try not to cut one up to fit a XT motor.
What are you really trying to do here? It maybe easier to modify the XT frame to get what you want. Explain in detail and I will try and help.
Stick welding frames is not a good method. If you can post photo of what Beta stuff you have.
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Tech Talk / Re: any of you guys did built his own vinduro bike from the frame?
« Last post by djr on Yesterday at 04:01:36 AM »
I don't know how you would identify the steel used on a frame easily ,
but you could have a close look at the existing welding for a clue
if the existing welds are - MIG or Stick , then its probably not CroMo
if the existing welds are - TIG or Bronze welded then it more likely is CroMo or something similar
whatever steel it is I would try and avoid stick welding if possible
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thankyou guys; actually i'm now thinking to modify a BETA 250 1977 frame to put in a yamaha XT250 2 valves motor (the goal is to build a little HL..do you now if this particular frame is made in cromoly? can i stick weld on this? if yes what rods i should use? the bike will be not raced or jumped in any ways..actually i use the bike on tarmac for 99%, albeit roads are not so smooth here
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