| 4,747 sales | 5 out of 5 stars

20x4 cm Two-Sided Spine Rounding Tool with 7 Grooves (Rondzetblok / Rundeholz, 3D-Printed)

$96.76+

Loading
Please select an option

Star Seller. This seller consistently earned 5-star reviews, shipped on time, and replied quickly to any messages they received.

Hooray! This item ships free.
Aug 22-Sep 30

The estimated delivery date is based on your purchase date, the recipient's location (actual or inferred), the seller's processing time and location, and the shipping carrier.

Other factors—such as shipping carrier delays or placing an order on weekend/holiday—may push the arrival of your item beyond this date.

Learn more

  • Handmade
  • Materials: plastic, PLA

Spine rounding tools are used to round spines of covers when one is making case-bound books. Alternatively, they may be used to form a rounded spine of a book block.

In the first case, you place the spine of the cover in that groove and work it with something like a pestle until it is properly rounded. First, this allows making a perfectly round spine. Second, it protects from breaking or wrinkling the spine. You may start with a larger radius and steadily reach the needed radius with different groves to be even more careful.

While forming a book block, you have to put the sewn – but not yet glued book block – into the groove, gently form it, and carefully take it out for gluing. I have never tried to do that – I’ve always rounded my books by hand and in a press. But I know bookbinders who use that method.

Tool sizes:
- Width: 20 cm;
- Height: 4 cm;
- Length: 21 cm / 30 cm / 38 cm;
- Groove diameters: up to seven grooves of any diameter from 10 mm to 50 mm on two sides of the tool, that will fit in the design (please leave a comment upon ordering).
- The default set of grooves for this tool is: 12 mm, 15 mm, 20 mm, 25 mm, 30 mm, 40 mm, and 50 mm.

You may also want to order a round sanding tool to accompany this rounding tool. They are used not only for sanding but also as a substitute for a pestle while rounding spines: https://www.etsy.com/shop/BonefolderClub?ref=l2-shopheader-name&search_query=Round+Sanding+Tool

Some of the benefits of the plastic tool compared to the wooden tool:
- The wood itself is much more expensive than plastic;
- Woodworking is a much more expensive process than 3d-printing;
- The weight of the wooden tool is higher. Hence, shipping is several-fold more expensive.
All that allows making plastic tools considerably cheaper.

By default, items are printed in any random color available at the moment. If you want to choose a specific color, please write us a message. Colors currently available are listed in our FAQ section: https://www.etsy.com/shop/BonefolderClub#more-section
If you want to get your jigs printed in some other color, that may be done for an additional 10 Euro fee (if the color is available at our supplier).

You can always add tracking to your order for an additional fee.
Free tracking is available:
- for orders from the EU above 60 euros
- for orders from other parts of the world above 100 euros.

Loading

The estimated delivery date is based on your purchase date, the recipient's location (actual or inferred), the seller's processing time and location, and the shipping carrier.

Other factors—such as shipping carrier delays or placing an order on weekend/holiday—may push the arrival of your item beyond this date.

Learn more

Aug 22-Sep 30

Aug 14

After you place your order, iBookBindingStore will take 1-5 weeks to prepare it for shipment.

Aug 19-Sep 19

iBookBindingStore puts your order in the mail.

Aug 22-Sep 30

Estimated to arrive at your doorstep Aug 22-Sep 30!

Cost to ship

Free

Returns & exchanges

Accepted

Exceptions may apply
Return & exchange window

30 days

from item delivery
Etsy offsets carbon emissions from shipping and packaging on this purchase.
Etsy offsets carbon emissions from shipping and packaging on this purchase.

There was a problem calculating your shipping. Please try again.

Ships from France

Stepan Chizhov

Stepan Chizhov

Owner of iBookBindingStore

Message Stepan

This seller usually responds within a few hours.

664 shop reviews

5 out of 5 stars
All reviews are from verified buyers
Loading
5 out of 5 stars

Stepan is a wonderful vendor. He is kind to his customers and even sends you a picture of your product being made. My Spine Rounding Tool came and it is exactly what I need. Great price, great company. I appreciate how he goes the extra mile for his customers.

dvitola Mar 21, 2018

5 out of 5 stars

This is a great tool! I punched holes for several signatures and they line up perfectly. I like the small compact size as well. I'm using it with an inexpensive Chinese awl from amazon. Thanks!

Christine Borgfeld Jun 8, 2022

5 out of 5 stars

Awesome, super-practical, pretty, what more could you ask for? Congratulations and long live iBookBindingStore! (And thanks for the little extra gift in the order :-)

marloutej Mar 31, 2022

5 out of 5 stars

The build quality and the engineering behind these corner clamps are fabulous. I am so happy with them. Exactly what I wanted and exactly what I needed.

Alan Apr 13, 2022

More from this shop

See more

Disclaimer: Etsy assumes no responsibility for the accuracy, labeling, or content of sellers' listings and products. Electrical or electronic products may pose a risk of fire or electrocution. Vintage, handmade, refurbished, or modified electrical or electronic products may not meet current safety standards and may not be in safe working order. Inspect carefully before use and message the seller if you have concerns relating to the product. Do not use a vintage electrical or electronic item if its safety cannot be verified. To reduce the risk of fire, never leave vintage electrical or electronic products plugged in unattended. See Etsy's Terms of Use for more information.

Explore related categories