Stell frame cnc 1500X1000. Adjustable table your opinion please

[EddyCurrent]

This is what it says about shipping where I got my stuff.
http://www.reactiveresins.com/index.html

"Shipping and handling
Orders over £200 sterling will be delivered free to most of Europe including the following countries Belgium, Denmark, Estonia, Finland, France, Germany, Gibraltar, Greece, Italy, Lithuania, Netherlands, Norway Poland, Portugal, Spain, Sweden, Turkey
We use various couriers in order to get the best combination of service and value for money for our customers."

Now I'm not saying you want £200 worth of epoxy but my point is they will ship it to Greece / Spain all you need do is contact them for a price.

When you click to 'buy on line' it takes you here; http://www.resinstore.com/epoxy-packs.html
The one I used was this, 'Syntac EPAFD Slow Cure Epoxy Resin Pack'

Edyy, was it cheaper you said?

Yes it was cheaper than West Systems

[Boyan Silyavski]

very interesting book and fast to read. http://nilsmalmgren.com/Laddas/Epoxy_handbook.pdf

from the book:

[JAZZCNC]

The one I used was this, 'Syntac EPAFD Slow Cure Epoxy Resin Pack'
Yes it was cheaper than West Systems

But didn't yours Sink Eddy.? . . . . No point being cheap if it's going to compress.!

[Boyan Silyavski]

But didn't yours Sink Eddy.? . . . . No point being cheap if it's going to compress.!

I agree there completely.

Eddy, just reread your build thread. It seems that what saved you was that you tightened equally the screws. But nevertheless that was a disaster in my opinion. I would have returned the epoxy for complete refund, given that you followed all normal epoxy procedure: weight the mixture to the gram, mix carefully 5 minutes, pour in new container before applying, apply at correct temperature, dry at correct humidity and temperature.
If you remember my thread, the WS epoxy could be filed just next day, though i waited a week. It was like snow flakes with excellent machine ability just next day.

Of course i also made a mistake there. i should have covered the rails below with epoxy base, so it would glue better to the steel. i did not do it and the small pieces at the gantry legs unglued when drilling. I fixed it but still see this as serious mistake from my side.


Just read at Spanish forum that the epoxy i was aiming for did not harden properly when the mix volume was very small - 10g. Thats another good reference if the epoxy is any good or crap... How it behaves when the mixture volume is very small. So its a "no go" for me and i will be ordering the West System today. After spending 5k for my machine i don't see a reason for saving 80euros.

[EddyCurrent]

But didn't yours Sink Eddy.? . . . . No point being cheap if it's going to compress.!

Only because I didn't let it cure long enough before tightening it down. I've obviously checked it all again since and It's not moved one bit. If I build another machine I would be using the same stuff again.
silyavski, it was not nearly as bad as you are making out, remember it was others who said it was a 'disaster' not me.

[Boyan Silyavski]

Only because I didn't let it cure long enough before tightening it down. I've obviously checked it all again since and It's not moved one bit. If I build another machine I would be using the same stuff again.
silyavski, it was not nearly as bad as you are making out, remember it was others who said it was a 'disaster' not me.

Could you do the 10g-20g mixture test if you have anything left? To see what happens?

[EddyCurrent]

Could you do the 10g-20g mixture test if you have anything left? To see what happens?

How should the test be done ? what are we looking for ?

[Boyan Silyavski]

How should the test be done ? what are we looking for ?

Just mix a very small amount, 20g in total and see if it hardens well. Should use a precision scale though. The idea is that the epoxies if don't behave well in very small quantities but behave well when mixed half kg for example, are poor quality.

[ba99297]

Thank for your answers.
Syliavski also thanks for your intention to help
I will search a little more and if i didnt find anything i will let you know.
My last search bring me up to this company. Have a look at the page that discribes its products

http://www.5m.cz/en/epoxy-resins/

PR 220 (resin) with EM316 (hardener ) has 120-150 minutes pot life
PR 220 (resin) with EM317 (hardener ) has 200-250 minutes pot life !!!! but not curing at room temperature

Here in Greece they import only 315 hardener to be combined with PR220 resin. This hardener suppose to be the fast, but it has pot life 50-60 minutes 200 gr at 25C ( when west system 105+209 has 40-50 minutes 100gr at 22 C). When i ask about the price ( here in Greece ) they told me 22 euros+vat but am not sure if they are talking about the PR220 or PR102 resin. Have a look.