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| How do I take up the slack in assembly |
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| John Hill:
I have made great progress on my Monster Stepper project (which is part of my CNC router table) but I have a large worm to mount on a shaft. The bore should be 5/8th but it is somewhat worn and is a loose fit on the shaft, normally I would knurl the shaft a little and use Locktite the theory being the knurling would help to maintain centrality but this is a stainless steel shaft which I assume would quickly work harden and destroy my knurls. Any ideas? |
| John Rudd:
Could you build up the stainless to diameter with silver solder? |
| bertie_bassett:
can you bore out the worm at all or is it to hard? if it can be bored out, then just sleeve the shaft to suit. otherwise, would an epoxy metal be any good to redo the bore with? |
| tekfab:
Not all stainless steel work hardens and look at it this way what does a set of knurls cost against the time in finishing the job and how many attempts at finding a suitable alternative ? and as i said not all types of stainless work harden so . . . . . . . . :Doh: Mike |
| sparky961:
Don't suppose you have access to a TIG welder, eh? Or even MIG with stainless wire (but you wouldn't have near the control that TIG affords). Alternatively it may be possible to turn down a section of the rod and make a press fit sleeve or two-part sleeve if you don't have access from an end. One more suggestion if you're just trying to get a tighter fit without a big production, use a hammer and punch with a shape of your choosing to displace metal and make for a tighter fit. Depending how much slop we're talking here, you could even turn it concentric after beating the hell out of it for a bit. Maybe centre drill it first... |
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