Cover a bit too loose w perfect binder

[Rpburchell]

I am trying to bind a small, 104-page A5 book on our new perfect binder (D60C-A3) and the cover is always just a bit too loose. I feel like I have adjusted every setting possible. Any tips would be so greatly appreciated. I have to finish this job in the next couple of days. Thanks in advance!!

 

[jrsc]

Loose as in the spine is too big? I'm not familiar with that machine a judging by a picture I found on google you manually place a pre-scored cover in the machine. Your creases are probably farther apart than they should be.

 

[Rpburchell]

Thanks. I actually was not creasing the spine ahead of time—perhaps that is indeed my problem. Can I pre-crease w the creasing unit? This is my first perfect binding machine, so it’s a bit of a learning curve for me.

 

[Rpburchell]

Here is a picture of what I am seeing after binding.

 

[jrsc]

What's the cover weight? creasing/scoring covers should make a huge difference in book quality. Do you have a way to crease or score? You need to measure the thickness of your book with a caliper so you know where to put the creases. Also if your perfect binder does side glue you should hinge score also about 0.2 inches out from the spine scores. After you get your scores right you can play with the nipper table pressure.

 

[Rpburchell]

80 lb card stock. Can I fold w bone tool and then crease w the creasing unit? Thanks in advance!

 

[jrsc]

However you can crease it as long as it's accurate and consistent.

 

[mulo_g]

I also see your covers have waves. Covers should be flat. Scoring the spine and hinge about 6mm improves quality greatly.