Victor machine c-7031

Nice looking machine, looks like a Eagnas Combo 8010 base. Are the 6/12 o'clock post hold down or floating?

 

You may need to pull the towers back or away from each other, so the racket frame fits snuggly, but not so much it's actually pulling on the frame. Also try to center the frame as much as possible, with the center crosses in the center of the turntable. This will help minimize frame distortion when you are pulling tension.

 

I think Covina means that when you mount the racquet, that the centre of the racquet head should be approximately above the axis of rotation of the turntable. In most cases, it could be out as the two end supports may have been set for tennis which is significantly longer - so move the towers together, then adjust them so that they lock such that the racquet head is centered. You can adjust the end supports in and out by winding the knob. The racquet should be slightly firm, before adjusting the side supports to make contact and be firm such that the racquet does not move when you are tensioning.

 

Ok. Usually the way to test how bad it is, is when the racquet head is not strung, trace the outline - inside and outside on a piece of paper, then after stringing it, place it on the paper and see where it is different. I am told that a change in length of a couple of mm should be no issue. Certainly I don't generally string at this high tension, and my racquets don't appear to change much at all.

A question though, after stringing - before you remove it from the clamps, does it appear to be rounded? The side supports are supposed to help the racquet head keep its shape. When you loosen the side supports - do they appear to be pressing a lot harder than before stringing? You can normally feel from the winding knob if it is under a lot of tension. Does the racquet head look rounder now before removing the top and throat supports? If it seems to squash down when removing the top and throat support - that would suggest that the mains tension is higher than the crosses. You do know that the mains strings are those that go from top to throat (or t joint), i.e. in line with the handle - and the crosses are right angles to the handle - right?

Also, you don't appear to mention what the racquet is - what is it? Take a photo of the racquet head for us to look at - this would help. Also show us how you mount the racquet on the stringing machine.

To answer your question about stringing at high tension, a lot of people here on the forum do string at 28lbs and don't have an issue with the racquet head changing shape very much at all.

By the way, my name is John, and I live in Dundas, a suburb of Sydney.

 

Hi - I see you have another thread talking about this also. Your racquet is a Armortec 900 - I think you said that you are stringing the crosses top down, but Yonex recommends going from throat up. Maybe you should try stringing it according to Yonex instructions first, so that you get used to stringing first before you change. See this link...

http://www.yonex.com/badminton/stringing_instructions/index.html

P.S. You do have a genuine Yonex - right?

 

baddy67's Yonex Armotec 900 is an original

 

Ok - just wanted to check.

 

Hi Baddy67,

Just wonder where did you buy this machine and how much is it ? Is it a good reliable machine ? I am thinking of getting one in future.

Thanks

 

Related Machine: C-7030

johnlowe88 is correct about centering the middle cross to the center of the turntable and the feel of the bottom shoulder suppports pressing hard against the knobs. Unfortunately, C-7030 has one column permanently fixed to the turntable. Therefore, it is not possible to center the frame as suggested. As a result, one has to lengthen the frame by quite a bit in order for the frame not to come out short and rounded. ​

 

Pete, this machine is a C-7031 so it should not have this problem. At least the picture supplied by Covina shows knobs under each column, which implies that it is movable. On the other hand, I have been wondering whether or not have the center cross in the middle is any better - I always do it this way though. Maybe the next generation of the turntables would allow movement in directions orthogonal to the string such that the string being pulled is in-line to the gripper. I.e. the turntable could move right angles to the string such that the angle through the grommet would be a more or less straight line. It might take a bit of engineering to accomplish this - but would it help? Maybe some thought for the future.

 

Yes John, the OP mentioned the C-7031 but I briefly diverted our attention to the C-7030.

 

Necro: Paul and I may be using this one at the All England next month, so I can do a very detailed review if people want one (and I'm allowed).

 

You will be allowed. I will be keeping hold of this machine after All Englands. I'm really looking forward to stringing on it.

Paul
www.badminton-coach.co.uk

 

I should be heading over to Paul's to have a look around the machine and check the calibration before we take it down to Birmingham, so I'll try and remember to get some pics. We might be able to send a racket through as well (if either of us have any we wouldn't miss if the worst happened).

 

I had the pleasure of Mark's company last night so he could string a racket on 7031 before All Englands. We also wanted to calibrate the machine although we were missing key instructions and therefore had to work it out. We didn't quite finish the job last night but I finally understand it this evening and recorded near perfect results.

We are now ready to commence final preparations for All Englands next week when we will be stringing for Korean players and hopefully the other Victor sponsored players.

We will take plenty photosgraphs and post as often as we can.

Paul
www.badminton-coach.co.uk

 

Tip #1: don't put your finger into the cooling fan.

Lots of pics to follow once we get down there.