Below are a few pictures of the counter balance i have made for my Triac. This is to ease / equal the load on the z axis stepper and ballscrew, thus reducing the chances of the stepper stalling when moving in the Z + direction. The counter-balance weight is 20kg. This is an estimated weight of the h...

I have taken an educated 'guestimate' that the weight is around 20kg.
The counter-balance is almost finished so i will post some pics soon.

Just wondered if anyone knows the combined weight of the triac head and motor? I am just looking at making a counter-balance to lessen the chances of the z axis stalling. I could work out/ take an educated guess at the weight, but if someone already knows it would make things a bit easier. thanks, a...

Hi All, Just got round to reading all the extra posts on this subject. Not had much time latley, New job, and other projects on the go. Hopefully get round to using the Triac again over the xmas break. Great to see you have been working on the board hpdrifter, and that a kit may be available is grea...

Good Suggestion Matt, I would be intersted also!

I have a Philips audio tape drive, speakers and wiring loom For sale.
In 'as new' condition, which i removed from my '86 Triac

If anyone is after this kind of thing make me an offer, whatever you think its worth. If nobody wants it it will probably be binned!

I mostly load programmes into the memory on my triac, but do drip feed small ones occasionally. However I remember reading somehere (on this forum?) that the Industrial text editor is limited to the size of programmes it can transmit succsesfullly. So two questions/ideas. 1. Are you using the Ind tx...

Hi David, I had similar problem a while back. Powered up ok, but switch the drives on and bang!. I went through a whole pack of 5 amp fuses. Then tried a 10 year old? fuse from an old plug and hey presto. Couldn't work this one out but someone told me modern fuses blow right on or below the ampage l...

Whizz maybe be right, I Know its stating the obvious but have you tried a programme which has worked ok before?

If your machine is as pictured (drawer underneath)

Then its the PNC 3 Control you have

Roy

Hi, Missed this one earlier :oops: Mine also gets quite warm, so not uncommon, I think Clarke has it about right. The Bearings are quite close together on the Triac, so there is a fair bit of preload to keep everything running true. Make sure the bearings are well greased, but be careful not to over...

Hi Whizz,

I have had a prog similar running for the last two nights, But do you think I can make it misread ? Nope seems just fine at the moment, I expect it will start playing up as soon as I start machining again

I would like to try and reduce the rapid on the Z to see if this helps, but as I said before is there anyway of doing this? Because obviously I don't want to change all my Z rapids for G01 s!

Roy

Checked out the backlash tonight and all seems ok, belt is fine also.
Can't seem to find anything a miss, so guess i will just have to run the m/c as normal and just see if my 'playing about' with everything has made any difference!

Roy

Matt, 1000 mm/min is the rapid speed (G00), not feedrate! I have investigated the Gib adjustment and this seems fine. I wrote a little programme just moving the z up and down in rapid to try and observe whats happening. I notice when it starts to move in the Z+ direction there is a little 'knock' so...

Hi Steve,

The Control is the old PNC 3. The Rapid speed is 1000 mm/min.

Is it possible to alter this parameter on this control, and if so how?

Cheers, Roy

Will Have a look at the Gib tonight, although I think this should be ok as I checked everything when I got the Machine in March. I don't think its a Lubrication problem as there is plenty of oil getting to the slide and ballscrew. With regard to only having problems recently, I have only recently be...

A small problem sometimes occurs with my '86 Triac in that it looses its Z datum occasionally this happened once last Friday whilst milling some slots and twice yesterday whilst drilling and profiling. What appears to happen is when it moves in the + direction away from the job it looses its zero, s...

Denford Admin wrote:Some instructions here (thanks to enny):

I think that should be thanks to Roy