hiwin rail question

**vargai** · 14-11-2014

Hi BA
How can I call you?

Thank you very much for your response-it is very useful.
Pls read my introduction and give reply if you have any comment.
Anyway I am planning to buy TBI motion rail and ball screw for my machine her in Hungary.
I have 20 % discount of the list price
Flanged high carrige TRFH25 -28 GBP
rail TR25 -46 GBP
Ball screw 20x10 T5 -34 GBP

Have you got any experience ?

(my hand was faster then my mind)

Thanks
István

**ba99297** · 15-11-2014

Istvan hi
You can call me Vagelis ( this is my name)
Sorry that i cant help you as i dont have any experience in profiled rails and carriages.
The rails that i mentioned in my first post are the only one that i have ever bought
So no experience at all ( other than the price and the dimensions of the rails that i have bought
I havent even use them in my machine

Wish you good luck

Vagelis

**vargai** · 17-11-2014

Hi Vagelis

In the meantime I looked at your photos of your frame- i think it is nice and strong.
I would go with 80x80x4 or where the rails are 80x80x8 but i want to use only one size of profile.
2014.11.16. It is the day when I started the planning of the machine.
The Z axis is the easiest as Jazz suggested to you- I also going to put the carriages to the fix plate.
For the X axis frame I try to plan a strong frame in frame solution against torsion.
C would be ideal for placing, fixing all- will see later. I do not want to mix the profile and the final design should be aesthetic too. Not for comment yet, just sign

**dezaud** · 18-12-2014

Sorry it took me this long to report back on the cheap-ish european source for Hiwin rails, cnc-store.eu, but everything worked out great. Delivery and processing was really fast and communication straight forward. I started out ordering two 50cm HGR15H rails and the first two of four HGH15 wagons to fit my massively oversized Z axis ball screw, upon arrival their size chocked me, tiny little things. So for my main order, the x and y axis, I went with HGR25H rails and HGW25 wagons and now having just recieved those I am again chocked, this time in reverse :) They are massive with a build quality that for my limited use should last very close to forever.

All of the wagons come preloaded and do indeed require a bit of force to move, now I just hope I'll be able to build the machine with the accuracy in alignment that they will require...

Included are two pictures, the packaging itself deserved to one of those as it was very impressive. Heavy cardboard stapled to a wooden board to resist beding in transit. Very nice job!

**EddyCurrent** · 18-12-2014

Too late now but I think you should have got 20's all round. The 15's are a problem to get grease into but if you find a good solution please let us konw.

http://www.mycncuk.com/threads/7273-...highlight=hg15

**dezaud** · 18-12-2014

I agree, 20's would probably have been a better fit for a 150x150 machine, thanks for letting me know about the greasing issue.

Have you noticed any considerable wear in on your hiwin setup, things sliding easier I mean?

**EddyCurrent** · 18-12-2014

@dezaud,
You might find these threads worth reading.
http://www.mycncuk.com/threads/4862-...in+lubrication
http://www.mycncuk.com/threads/7706-...ighlight=hiwin

**JAZZCNC** · 18-12-2014

Originally Posted by dezaud

Have you noticed any considerable wear in on your hiwin setup, things sliding easier I mean?

Don't worry about the preload it won't be a problem. By hand they feel stiff but to get a better idea of how they will really feel then put a rail on a level floor and put slight pressure on with your foot and you'll see they slide easily. Be careful not to put too much force or they will shoot off with you.!!. . .Lol

In use they do free up a little but not massive amount and you don't want them to really. If aliagned and looked after correctly they will last for many many years giving hassle free usage.

**charlieuk** · 19-12-2014

Originally Posted by EddyCurrent

Too late now but I think you should have got 20's all round. The 15's are a problem to get grease into but if you find a good solution please let us konw.

http://www.mycncuk.com/threads/7273-...highlight=hg15

I set out today to try and solve the grease problem on the hg15 and I think I may have done it with a little m4 nipple some silicone tube and a syringe to inject the grease which I plan on warming up first so it's a little more liquid. I will report back tomorrow when I give it a go.