Yup, on burning the urathain. I'm going to attempt soon. I've worked PVC shaping, and the thing with PVC is patience or it turns black and only flexy in the small area you heated. I have an old band saw, I got some new wheels for but dont fit...to long, so I will be giving this a shot. It will only have to stretch going on and not constantly agitated like your issue. I'm glad you got it going, Im jealous ...your laith❤😂. Whish me luck!!
Burnt the 1940's motor on my 1897 Rivet belt lathe last winter...The previous owner used a wooden pulley and leather belt system, but I'm changing over to the poly flat belt this holiday month...I need to turn a nylon pulley and my other lathe broke a jaw...thanks for the encouragement that it can be done...btw I'm a machine fabricator/controls engineer...so it's getting a tach and VFD upgrade along the way of old parts picked off equipment. What is your lathe?
A tach would be a fun upgrade. I don't remember off hand the model. I'm guessing it's from the 40's but has been modified over the years. When I acquired it, it still had a leather belt which shredded the moment I turned it on. Lol
The temperature should be much lower. You should never see smoke or even bubbles. To get a good strong splice you need to push the belt against the plate to form a bead and then stop pushing and hold the belt still for about 15 to 20 seconds. This heats the belt deeper. Then when you join the belt push gently. If you push too hard you displace the hot material and you end up with cold rubber at the joint. This will cause a weak splice. Also this belt is only good for about 1/4 hp. Not the best choice for that lathe.
Great video on repairing a unique vintage tool!
Thank you
Yup, on burning the urathain. I'm going to attempt soon. I've worked PVC shaping, and the thing with PVC is patience or it turns black and only flexy in the small area you heated. I have an old band saw, I got some new wheels for but dont fit...to long, so I will be giving this a shot. It will only have to stretch going on and not constantly agitated like your issue. I'm glad you got it going, Im jealous ...your laith❤😂. Whish me luck!!
It's not too bad a process, a little bit of trial and error is to be expected
Burnt the 1940's motor on my 1897 Rivet belt lathe last winter...The previous owner used a wooden pulley and leather belt system, but I'm changing over to the poly flat belt this holiday month...I need to turn a nylon pulley and my other lathe broke a jaw...thanks for the encouragement that it can be done...btw I'm a machine fabricator/controls engineer...so it's getting a tach and VFD upgrade along the way of old parts picked off equipment. What is your lathe?
A tach would be a fun upgrade. I don't remember off hand the model. I'm guessing it's from the 40's but has been modified over the years. When I acquired it, it still had a leather belt which shredded the moment I turned it on. Lol
The temperature should be much lower. You should never see smoke or even bubbles. To get a good strong splice you need to push the belt against the plate to form a bead and then stop pushing and hold the belt still for about 15 to 20 seconds. This heats the belt deeper. Then when you join the belt push gently. If you push too hard you displace the hot material and you end up with cold rubber at the joint. This will cause a weak splice. Also this belt is only good for about 1/4 hp. Not the best choice for that lathe.
Thanks for your comment.
Way too hot. Around 350f and 20 seconds of heating to allow heat to wick and soften the ends. Too much heat breaks down the plastic
You are correct. If the belt smokes, it's too hot. The third attempt in the video where the belt melts, but not burns is when it starts to bond well.