Hello, this is my first post.

[sainte]

Please, can someone tell me what is the speed (rpm) of the bell blade and on the other hand the speed (rpm) of the drive mechanism of your skyver?.

Thank you

[RockyAussie]

2 hours ago, sainte said:

Please, can someone tell me what is the speed (rpm) of the bell blade and on the other hand the speed (rpm) of the drive mechanism of your skyver?.

Thank you

The bell speed on mine is able to be changed at the pulleys to run faster or slower but as a guide line a normal sewing machine motor will run it and fast is best normally. The manual above that @DanishMan should give you some more clues on that. As far as the feed speed goes.... although it can be set at a constant speed it is usually used like a sewing machine meaning the more foot pressure the faster it goes. When you are doing long strips you want the feed fast and when you are doing little curly stuff you want from 0 to fairly slow. I have seen a few people use 2 servo motors to do it but the bell could be run on a normal set speed motor. Note: the worst thing on these old skivers is if you have too much play up and down on the shaft that drives the bell. If it moves that way you may be wasting your time.

[sainte]

RockyAussie: Thanks for your help once again.

Yes, I am seriously considering your recommendation about use a servo motor for feed speed.

Referring to the up and down play on the bell axis, I already knew that this problem could be, it was one of the first things that I tried to discard before starting the restoration: I think that although my machine is very old and maybe it has been a little battered before, it has had little use! and little wear on the shaft, we will see ... 

Thank you.

Edited June 26, 2020 by sainte

[RockyAussie]

Your most welcome and I hope that it all goes well. I will attach a couple of pdf's of some manuals that could help a little in some places. I see that this file may be too large by itself so I will give it a try and see how that 1 goes first.

Fortuna 50 p ag.pdf

[RockyAussie]

another-

dcs-s3.pdf

[sainte]

Thanks RockyAussie

Very useful manuals!

[sainte]

The use of polyester putty and sanding it prior to printing:

This work is very dirty! I have had success with this process, performed on a couple of sewing machines as old as this skyver. So I will try to repeat it this time.

In order to carry out this work, I consider it important to first scratch all the existing paint residues. Then a cleaning to leave dust free and then application of polyester putty.

Lastly, sanding, by using "hard" and "soft" sandpaper blocks, depending on the type of surface, until no roughness "to the touch" is perceived.

[sainte]

Masked and wooden stopper/plug:

A job of about two hours. But important to later have no problems in reassembling.

The use of masking tape; paper; Balsa wood plugs and quite patience.

[DanishMan]

Regarding motor RPM, I recently bought a Fortuna table.

The motor says 1400 rpm, and it has a fairly big pulley wheel. It the skiving machine goes too fast, it will not discard the scrap.

I am restoring two skiving machines at the moment. I am going to fit two motors. A constant speed motor for the knife and a servo motor for the feed wheel.

Kind regards

Søren

[sainte]

DanishMan: We are on the same boat! Your experience helps me a lot! I plan to do exactly the same with regard to independently positioning two motors, one for the fixed speed knife and the other with a frequency inverter for the feet wheel.

Thank you for showing your experience.

Brds