It would take a lot more power than I generate to move my lard on the seat. I doubt even the most powerful and lightweight would have issue either.Question- with the seat leaned back that far, do you find your body slides up and down in the seat with each kick?
Mig welder - sputtering when you first pull the trigger- this lasts about 2-3 seconds and finally settles down- I am having to aim away from the weld just a bit so that the sputtreing stops before I aim the gun at the weld area. Could be it's not getting the gas flooded onto the weld soon enough? The gas pressure is plenty high enough at 15psi.
Any ideas on that?
Normally the gas for mig and tig are measured in volume not pressure, a correct gas setting should be about 15-20 cuft/hr or 8-10 ltr/min.Mig welder - sputtering when you first pull the trigger- this lasts about 2-3 seconds and finally settles down- I am having to aim away from the weld just a bit so that the sputtreing stops before I aim the gun at the weld area. Could be it's not getting the gas flooded onto the weld soon enough? The gas pressure is plenty high enough at 15psi.
Any ideas on that?
Hands up I just copied an American design for Python 1I'm horribly unimaginative and to see and read how others have come up with original ways to build is very inspiring.
Well it much easier starting with a working design and massaging it into the design you want than a blank piece of paper.....I'm also amazed at the patience some Zombies have. Reading how you and Paul and others try and retry your ideas till you get it right puts me to shame.
Pegasus- I will try 10 liters/min and see how that goes- Thanks for the info. I am also seeing a big difference when welding something that is laying flat as compared to something that is vertical. Pretty sure the gas is not staying around the weld at all in the vertical position.Normally the gas for mig and tig are measured in volume not pressure, a correct gas setting should be about 15-20 cuft/hr or 8-10 ltr/min.
15 psi sound to high for me, you probable blow away the weld with the pressure build up, try lowering the gas down until you just hear a faint hiss.
Try welding and increase slightly if not enough, it should be as low as possibly.
Popshot- yes my results are very inconsistent. I turned down the gas pressure to 10 liters per minute instead of using 15psi and that may help, but today I noticed that I was backing off the position too far (about an inch total stick out) in an unconcious effort to see the weld puddle on the other side of the gunIt would take a lot more power than I generate to move my lard on the seat. I doubt even the most powerful and lightweight would have issue either.
With the mig you may have too high a pressure on the gas. Too little gives sputtering and too much gives spattering. Similar but different. It may also be as simple as a worn tip or liner. The tip is important in transfering the current to the wire and a poor tip will not do that well. Equally a poor earth will struggle. First use after not welding for a while I send a couple of seconds of wire through to get the co2 up the tube before starting.
Pegasus- Update on my welding- The 10 liters per minute seems to be better. There is less popping after the instant the trigger is pulled. I would guess one second instead of three.Pegasus- I will try 10 liters/min and see how that goes- Thanks for the info. I am also seeing a big difference when welding something that is laying flat as compared to something that is vertical. Pretty sure the gas is not staying around the weld at all in the vertical position.
Well after watching some mig welding videos on You Tube I took a tip from one of them and trimmed back the outer gas nozzle edge so that it is flush with the tip. Wow- what a difference!Popshot- yes my results are very inconsistent. I turned down the gas pressure to 10 liters per minute instead of using 15psi and that may help, but today I noticed that I was backing off the position too far (about an inch total stick out) in an unconcious effort to see the weld puddle on the other side of the gun
Pegasus- Update on my welding- The 10 liters per minute seems to be better. There is less popping after the instant the trigger is pulled. I would guess one second instead of three.
Even when welding vertical it seems like less popping, although vertical still has a longer wait for the weld to get established.
Today was a good test for the Mig rig- I tried the 10 L/min and also was very religious about only welding on shinye metal.
Maybe it's just me, but I always go back and grind out any porosity I find. That slows me down considerably.
Progress- I'm still staying with the cable steering system for now- After studdying some of AZ' details on the Aurora trike it looks like there was a definite requirement to have the steering post and the head tube angle match each other. I was thinking this might be the reason why my cables were getting tighter and looser as I rotated the under seat steering.
(My steering post was not parallel with the head tube) I am still modifying my USS tubing to allow for this change, but that should be done today or tommorrow. I'm hoping that this will be the last change to my parts locations as changing anything from this point on will be a bit more difficult. Thanks to you all for your inputs on the Mig welding!
Mig welder - Pre flow gas-? I think that would be a good idea- not sure how to implement, but having a 1/2 second of gas flow before the wire starts moving would be good insurance for a more reliable start. It takes about this long for everything to get moving anyway, and if the arc is not shielded 100%, it will do nasty things to the work.