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Old 03-10-2014, 03:50 PM
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EQ6 Teflon Washers

I'm stripping down and revamping a 6-7 year old, (but brand new) EQ6.

Does anyone know if and where the teflon washers can be sourced from in Australia.

Or if washers of different material can be used in place of the teflon.

Thanks.
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Old 03-10-2014, 03:58 PM
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eddiedunlop (Martin)
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I've made washers out of plastic milk bottles (HDPE I think) and used them in various mounts. Use as many as needed to get the right thickness.
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Old 03-10-2014, 04:01 PM
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Garbz (Chris) had a contact of a guy who can stamp out delrin rings.
Try giving him a pm.
Bo
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Old 03-10-2014, 07:10 PM
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Quote:
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Garbz (Chris) had a contact of a guy who can stamp out delrin rings.
Try giving him a pm.
Bo

Thanks Bo, I sent him a pm, he had some bearings and washers up for sale not long ago, I missed out by a few days, would have it too easy if I was quicker.
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Old 03-10-2014, 07:18 PM
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I actually got four bearing from Chris, but wasn't quick enough to get all the washers.
If you get some, I will get some as well and we can go halves. I don't know the exact thickness of the rings yet as I haven't taken apart my mount yet.
Let me know if you are keen.
Bo
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Old 03-10-2014, 07:18 PM
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Quote:
Originally Posted by eddiedunlop View Post
I've made washers out of plastic milk bottles (HDPE I think) and used them in various mounts. Use as many as needed to get the right thickness.
Thanks, I did just that, at least I can finish cleaning , regreasing and putting it back together.

I'll replace them when I find a permanent replacement. It doesn't take much effort to replace them.

Cheers
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Old 03-10-2014, 07:22 PM
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Quote:
Originally Posted by traveller View Post
I actually got four bearing from Chris, but wasn't quick enough to get all the washers.
If you get some, I will get some as well and we can go halves. I don't know the exact thickness of the rings yet as I haven't taken apart my mount yet.
Let me know if you are keen.
Bo

No problems, I'll find some somewhere, I'll let you know.

The washers I took out were brittle and 1 fell apart into 3 pieces.

Unused but 6-7 years old and they failed. Makes me wonder what would the washers be like in used ones.
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Old 03-10-2014, 07:57 PM
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Hey Guys,
I recently cut some washers on my laser cutter. It was some plastic that I use for vacuum forming. I'm only into my second week but the washers seem to be doing very nicely.

Trent
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Old 03-10-2014, 09:45 PM
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I sourced mine from a guy in the states. Doug: skygazer@kennaquhair.com

As far as material properties go Teflon has problems in that it doesn't do well under compression. Hence Delrin being the choice of hypertuning.

HDPE is not a good substitute in this case. It deforms under pressure more easily than Teflon. Delrin (or Acetal) beat both under compression by a factor of 6
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Old 04-10-2014, 06:35 AM
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What if I offered to do a run? What sort of plastic would be preferred?
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Old 04-10-2014, 06:37 AM
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Thanks Chris

The delivery time from the states is a put off, that's why I want to source locally.

The product (Acetal) is available here, it's finding someone that will supply a small quantity and cut out the rings.

I'll keep hunting
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Old 04-10-2014, 06:38 AM
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What if I offered to do a run? What sort of plastic would be preferred?
Acetal
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Old 04-10-2014, 06:45 AM
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Looking at the broken original rings last night, they are not teflon, it's just a stiff plastic.
There's a lot of plastics that would be a better substitute and would fill the gap.
For long term performance, it's like Chris said, acetal, it has the properties to perform well.
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Old 04-10-2014, 06:52 AM
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Hi Solitarian,
My washers are made with a polycarbonate. I don't have any Acetal here at home. I am hunting down Acetal sheets now. I think the biggest problem would be getting the thickness you want locally. Ebay has 1.5mm but it comes from the states.
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Old 04-10-2014, 06:55 AM
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1mm, supplier in Sydney
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Old 04-10-2014, 07:06 AM
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Quote:
Originally Posted by trent_julie View Post
Hi Solitarian,
My washers are made with a polycarbonate. I don't have any Acetal here at home. I am hunting down Acetal sheets now. I think the biggest problem would be getting the thickness you want locally. Ebay has 1.5mm but it comes from the states.
Finding the assortment of thicknesses will be the hard part.
The thrust washers under the worm gear are also shims for proper meshing of the worm drive. Those washers' sizes are the critical ones.
The thickness of the thrust washers above the worm drive on the Dec, only seem to change the gap between the collar and the mount.
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Old 04-10-2014, 07:12 AM
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I will speak with the Sydney supplier and find out what the options are.
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Old 04-10-2014, 07:18 AM
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Good stuff Trent, they may have different sizes available to them.
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Old 04-10-2014, 07:34 AM
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Quote:
Originally Posted by Solitarian View Post
Looking at the broken original rings last night, they are not teflon
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Originally Posted by trent_julie View Post
My washers are made with a polycarbonate.
The EQ6 has shipped with a variety of greases and washers over the years. Teflon is the more current practice from what I can gather.

Quote:
Originally Posted by Solitarian View Post
Finding the assortment of thicknesses will be the hard part.
The thrust washers under the worm gear are also shims for proper meshing of the worm drive. Those washers' sizes are the critical ones.
The thickness of the thrust washers above the worm drive on the Dec, only seem to change the gap between the collar and the mount.
Don't go overboard on different sizes. The ones that came out of the mount were all identical sizes. 0.25mm I think. The kit I bought came with 0.1mm 0.2mm and 0.3mm sets from what I remember.

You're right about the washers above the worm drive but bear in mind that if the spacing of these isn't correct the collar will jam against the mount (as I figured out when I removed a washer from below and forgot to put it in above the ring gear.
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Old 04-10-2014, 09:28 PM
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Quote:
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Don't go overboard on different sizes. The ones that came out of the mount were all identical sizes. 0.25mm I think. The kit I bought came with 0.1mm 0.2mm and 0.3mm sets from what I remember.
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.
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