Search found 19 matches

by Rgvbaz
Mon 05 Mar , 2018 22:57 pm
Forum: User Stories / Projects / Courseware
Topic: Triac Z axis counter-balance
Replies: 30
Views: 8223

Re: Triac Z axis counter-balance

Just PM'd you Colin :)
by Rgvbaz
Mon 05 Mar , 2018 13:29 pm
Forum: User Stories / Projects / Courseware
Topic: Triac Z axis counter-balance
Replies: 30
Views: 8223

Re: Triac Z axis counter-balance

Nope but it has only been powered up for an hour yesterday... As I say it all seemed to work okay. It doesn't move as fast as it did in your video but I think that maybe set-up with Mach. Do you happen to have the settings you used in Mach? I'm also trying to figure out the limit switches - the orig...
by Rgvbaz
Sun 04 Mar , 2018 20:04 pm
Forum: Triac
Topic: Triac with servo's
Replies: 36
Views: 11763

Re: Triac with servo's

Got everything sorted and back together...

Fired her up and she moves and everything. Next step is to sort the limit switches and cut some metal :)

Did a short video of her running:

https://youtu.be/XZSdnK7kzW0

Cheers

Dave
by Rgvbaz
Sun 04 Mar , 2018 11:24 am
Forum: User Stories / Projects / Courseware
Topic: Triac Z axis counter-balance
Replies: 30
Views: 8223

Re: Triac Z axis counter-balance

sneakym8 wrote:Thats all good news then .
Looks like it was an easy fix.
Has it still got the Bob Cambell
Break out board fitted ?

Yes that's still there. It looks exactly the same as it did in the pics you posted in your build thread on here Colin.

I posted some pics I took in that thread yesterday.

Dave
by Rgvbaz
Sat 03 Mar , 2018 17:47 pm
Forum: Triac
Topic: Triac with servo's
Replies: 36
Views: 11763

Re: Triac with servo's

Hi Colin, I do have a question if you don't mind answering? Earlier in this thread there is a picture of the control box and there is a earth free (as in not connected to anything in the control box) from the Y servo - it is also free at the servo too. When I got the machine it had been connected to...
by Rgvbaz
Fri 02 Mar , 2018 23:36 pm
Forum: User Stories / Projects / Courseware
Topic: Triac Z axis counter-balance
Replies: 30
Views: 8223

Re: Triac Z axis counter-balance

sneakym8 wrote:The motor probably just needs new
bearings

Had a look tonight - looks like the cap/cover for the encoder got pushed down a bit far and the noise was just the end of the servo shaft catching on the cover.

Hopefully I may get to fire her up over the weekend :)

Dave
by Rgvbaz
Wed 28 Feb , 2018 19:17 pm
Forum: User Stories / Projects / Courseware
Topic: Triac Z axis counter-balance
Replies: 30
Views: 8223

Re: Triac Z axis counter-balance

sneakym8 wrote:The motor probably just needs new
bearings

Just seen this too! I'll pull it apart and have a look.

On a plus note the Z axis is fine it was just the Jib moving and jamming the z axis. As you say - the head falls down on its own without the gas spring :)
by Rgvbaz
Wed 28 Feb , 2018 19:14 pm
Forum: User Stories / Projects / Courseware
Topic: Triac Z axis counter-balance
Replies: 30
Views: 8223

Re: Triac Z axis counter-balance

Dave I don't know who you got the machine from but when i sold it there was a spare motor with it , as i was going to put a 4th axis on it . I saw some similar motors on ebay last week . I have just bought a denford microrouter and was thinking about converting it to servos. Colin - sorry I missed ...
by Rgvbaz
Tue 27 Feb , 2018 22:34 pm
Forum: Triac
Topic: Removing Triac Z axis ball screw.
Replies: 3
Views: 359

Re: Removing Triac Z axis ball screw.

Good to hear David :)

Glad you got the problem sorted as am I.

Cheers for the reply

Dave.
by Rgvbaz
Tue 27 Feb , 2018 20:52 pm
Forum: Triac
Topic: Removing Triac Z axis ball screw.
Replies: 3
Views: 359

Re: Removing Triac Z axis ball screw.

Well - after my mate came around and had a look he noticed the z axis jib strip was moving up and down. We had a look and found a lot of play where the screw head contacts the jib strip and as the Z went up and down it would jam and cause the notchy feeling when the Z screw was moved. We put a bit o...
by Rgvbaz
Tue 27 Feb , 2018 15:49 pm
Forum: Triac
Topic: Removing Triac Z axis ball screw.
Replies: 3
Views: 359

Removing Triac Z axis ball screw.

Hi, I've recently bought a project Triac. I knew the Z ball screw would probably need replacing but after some advice from Colin on here I have searched and found somewhere that may be able to re-ball it. Clearly I have to take it out and that's where the challenge comes... I've done some googling a...
by Rgvbaz
Mon 26 Feb , 2018 23:32 pm
Forum: User Stories / Projects / Courseware
Topic: Triac Z axis counter-balance
Replies: 30
Views: 8223

Re: Triac Z axis counter-balance

sneakym8 wrote:Re -ball them . You can buy selectiv size balls so you can eliminate backlash.
Just found this thread with contact info of a company that does re-balling :)

viewtopic.php?f=47&t=4714

Dave
by Rgvbaz
Mon 26 Feb , 2018 23:20 pm
Forum: User Stories / Projects / Courseware
Topic: Triac Z axis counter-balance
Replies: 30
Views: 8223

Re: Triac Z axis counter-balance

Thanks Colin - I will look into re-balling the Z ball nuts if I can. Interestingly I disconnected the gas strut. The force required to lower the Z halved and doubled to raise it - i'd say the strut is still working perfectly. I did have a feel of the Z servo motor - it is very notchy. I checked the ...
by Rgvbaz
Mon 26 Feb , 2018 12:50 pm
Forum: User Stories / Projects / Courseware
Topic: Triac Z axis counter-balance
Replies: 30
Views: 8223

Re: Triac Z axis counter-balance

Hi Colin - great to see you are still here and I'm sure I'll have plenty of questions for you if you are happy to answer? I think the z -ball screw will need replacing - the pulley needs grasping with my hand to turn it and it does feel a little notchy. The guy I bought it from said he reckons it ne...
by Rgvbaz
Sun 25 Feb , 2018 19:58 pm
Forum: Triac
Topic: Triac with servo's
Replies: 36
Views: 11763

Re: Triac with servo's

Bump for me :0)
by Rgvbaz
Sun 25 Feb , 2018 18:42 pm
Forum: User Stories / Projects / Courseware
Topic: Triac Z axis counter-balance
Replies: 30
Views: 8223

Re:

sneakym8 wrote:Hi


When I first fitted the spring I disconnected the motor and the head went up
so I held the pulley at the top of the lead screw and released some gas, just a little at a time until the Z axis was in perfect balance.
Guess I need to disconnect the gas spring...

Dave
by Rgvbaz
Sun 25 Feb , 2018 18:39 pm
Forum: User Stories / Projects / Courseware
Topic: Triac Z axis counter-balance
Replies: 30
Views: 8223

Re: Triac Z axis counter-balance

Hi Not sure if you are still on here Colin but I have your machine! I bought it as a project as it had some issues which I am keen to sort out. The guy I bought it from was up-front and said there were issues with the machine and may need a new Z axis ballscrew... Did you ever measure the force to t...
by Rgvbaz
Tue 13 Feb , 2018 18:08 pm
Forum: Denford Classifieds
Topic: Wanted: Denford Triac
Replies: 1
Views: 474

Re: Wanted: Denford Triac

Not sure how the PM system is on here but if anyone is selling my contact is: Bazbond1@aol.com or 07769 902803

Cheers

Dave
by Rgvbaz
Mon 12 Feb , 2018 15:35 pm
Forum: Denford Classifieds
Topic: Wanted: Denford Triac
Replies: 1
Views: 474

Wanted: Denford Triac

Hi,

I'm after a Denford Triac. If anyone has one or knows of one for sale could they please contact me.

Many thanks,

Dave