OK,
There seems to be quite a few varying sizes that people want. The sizes I have identified are .07mm, .01mm .254mm, and .508mm. It is expensive stuff. I'm happy to hear your thoughts.
OK,
There seems to be quite a few varying sizes that people want. The sizes I have identified are .07mm, .01mm .254mm, and .508mm. I'm happy to hear your thoughts.
Trent
Good work ,
I'd go for the .254mm out of those sizes as a minimum single choice. That gives the same tolerances as the factory design, all .25mm increments for shimming it seems. They just didn't have good enough QC to install them correctly in the beginning, I don't know about the new mounts QC these days.
Quote:
It is expensive stuff.
Certainly is, and there will be more waste than product, that hurts the per washer cost. Sheet size is also a concern.
Nothing but praise for Doug Dieter - responded promptly to my email and a standard envelope arrived in about a week from US if my memory serves me correctly. A full set of different thickness in delrin, all cut to correct shaft size. Minimal stuffing around, good price. Can understand if you're desperate to get going next few days though.
I had .25mm , .50mm and 1mm washers in mine. No correlation to what was needed.
What I need are 15 thou (.38mm) and 20 thou (.50mm) for below the worm gears.
I don't need any above the worm gears, the casings fit nicely without any. I'd rather have a better thrust surface than the bare casing metal, so a minimal sized washer is needed there.
The .1mm .2mm .3mm kit sizes would most likely do , stacked to accommodate the larger gaps.
!!!! 1mm! That's about the total shim distance needed for one of the worms. You sure there weren't 3 washers in there just stuck together. I may have made just that mistake when I opened up my enveloper.
Nothing but praise for Doug Dieter - responded promptly to my email and a standard envelope arrived in about a week from US if my memory serves me correctly. A full set of different thickness in delrin, all cut to correct shaft size. Minimal stuffing around, good price. Can understand if you're desperate to get going next few days though.
He's always the first person people recommend, it's good to know he's there. He'll be my fall back if I can't find a substitute in Oz.
It's just the mounts have been around so long, 13 years and yet there is still no supply for the aftermarket washers locally, that we know of.
Doesn't hurt to try
!!!! 1mm! That's about the total shim distance needed for one of the worms. You sure there weren't 3 washers in there just stuck together. I may have made just that mistake when I opened up my enveloper.
I'd go .25mm and .50mm, 1mm is a bit too big.
A .10mm size would add a finer tune to those 2 sizes if available.
Hopefully others can throw in some thoughts on sizes, even anyone thats done the tune previously, they may chip in with what they've used, be nice to have a cross section of whats needed or been used.
I replace the dec worm bearing last night and measured the washer needed, it turns out I had two Teflon washers in there each 0.4 mm thick. If I use both, it's too much but if I use just one, I need another 0.25 mm spacer.
So I either need a 0.25 mm to add to my existing 0.4 mm or a 0.65 mm to replace my existing.
Bo
If we're stuck with teflon for now, so be it.
Fitting the incorrect thickness at the factory I think is more of a problem than the material substance itself, I'd be happy to use Teflon shims of the correct thickness.
A source of acetal may be be found later.
If you're prepared to go that way Trent, I'll jump in as well.
Exact size is not critical. It doesn't need to fit snugly and doesn't need to (in fact doesn't at all) extend to the outside of the bearing.
I'd say OD is almost irrelevant, and ID needs to cover the bearing face that it sits on, and that's about it.
Measure the shaft diameter and add a small sum (0.2mm or something like that) to the ID would be my suggestion. If they are too tight then they become an absolute pain to put on and take off, the top washers which would then sit in a position where you couldn't pry them out with a screwdriver.
The teflon arrived yesterday and I attempted the first cut tonight.
It is not an easy material to work with! Nor cheap to make mistakes with. I will solve some issues over the weekend and make a progress report. That being said, the laser does cut the teflon nicely. The teflon keeps on wanting to go back to its original shape mid cut... so I will need to find a way to keep it stuck down.
The teflon arrived yesterday and I attempted the first cut tonight.
It is not an easy material to work with! Nor cheap to make mistakes with. I will solve some issues over the weekend and make a progress report. That being said, the laser does cut the teflon nicely. The teflon keeps on wanting to go back to its original shape mid cut... so I will need to find a way to keep it stuck down.
I may have made just that mistake when I opened up my enveloper.
