User Tools

Site Tools


presses:poco

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revisionPrevious revision
Next revision
Previous revision
presses:poco [2026/09/24 20:17] – [Printing Protocol for the Hacker Poco] mbpdocs_adminpresses:poco [2026/09/24 20:27] (current) – [Poco Troubleshooting, Maintenance and Resources] mbpdocs_admin
Line 1: Line 1:
-====== Poco Troubleshooting, Maintenance and Resources ======+====== Hacker Poco No. 0 Troubleshooting, Maintenance and Resources ======
  
 ===== Packing and Bed Adjustment for Photopolymer Plates & Type High Blocks ===== ===== Packing and Bed Adjustment for Photopolymer Plates & Type High Blocks =====
 +
 +//The information in this section was pulled from a variety of sources by an AI agent. Once all recommendations have been confirmed or edited by MBP, this disclaimer will be removed.//
  
 The Hacker Poco Proof Press (typically the No. 0 model) features a cylinder with a standard cylinder undercut of .050 inches. This means the bare cylinder sits exactly .050" below its bearers. [1]  The Hacker Poco Proof Press (typically the No. 0 model) features a cylinder with a standard cylinder undercut of .050 inches. This means the bare cylinder sits exactly .050" below its bearers. [1] 
Line 31: Line 33:
   * Hard vs. Soft: For crisp type and wood engravings, place a hard sheet of pressboard directly underneath your top tympan sheet. If your type is worn or uneven, move the softer bond paper to the top layer just below the tympan to cushion the bite. [8, 13, 14]    * Hard vs. Soft: For crisp type and wood engravings, place a hard sheet of pressboard directly underneath your top tympan sheet. If your type is worn or uneven, move the softer bond paper to the top layer just below the tympan to cushion the bite. [8, 13, 14] 
  
-[1] [https://vandercookpress.info](https://vandercookpress.info/poco-draw-sheet/) +  - [[https://vandercookpress.info/poco-draw-sheet/]] 
-[2] [https://vandercookpress.info](https://vandercookpress.info/packing-sp-20-question/) +  - [[https://vandercookpress.info/packing-sp-20-question/]] 
-[3] [https://www.briarpress.org](http://www.briarpress.org/15410) +  - [[http://www.briarpress.org/15410]] 
-[4] [https://www.editions.studio](https://www.editions.studio/inklings/2018/2/19/bringing-home-a-new-baby-poco-proof-press) +  - [[https://www.editions.studio/inklings/2018/2/19/bringing-home-a-new-baby-poco-proof-press]] 
-[5] [https://www.briarpress.org](http://www.briarpress.org/15410) +  - [[http://www.briarpress.org/15410]] 
-[6] [https://vandercookpress.info](https://vandercookpress.info/poco-draw-sheet/) +  - [[https://vandercookpress.info/poco-draw-sheet/]] 
-[7] [https://ladiesofletterpress.com](https://ladiesofletterpress.com/forums/topic/packing-bed/) +  - [[https://ladiesofletterpress.com/forums/topic/packing-bed/]] 
-[8] [https://briarpress.org](https://briarpress.org/31110) +  - [[https://briarpress.org/31110]] 
-[9] [https://www.briarpress.org](http://www.briarpress.org/47626) +  - [[http://www.briarpress.org/47626]] 
-[10] [https://www.briarpress.org](http://www.briarpress.org/48331) +  - [[http://www.briarpress.org/48331]] 
-[11] [https://bigjumppress.blog](https://bigjumppress.blog/2013/03/11/how-to-adjust-the-packing-on-a-flatbed-cylinder-press/) +  - [[https://bigjumppress.blog/2013/03/11/how-to-adjust-the-packing-on-a-flatbed-cylinder-press/]] 
-[12] [https://vandercookpress.info](https://vandercookpress.info/packing-sp-20-question/) +  - [[https://vandercookpress.info/packing-sp-20-question/]] 
-[13] [https://www.facebook.com](https://www.facebook.com/groups/letterpressprinting/posts/10159564828196779/) +  - [[https://www.facebook.com/groups/letterpressprinting/posts/10159564828196779/]] 
-[14] [https://www.briarpress.org](http://www.briarpress.org/47626)+  - [[http://www.briarpress.org/47626]] 
 + 
 +----
  
  
Line 51: Line 55:
 To prevent having to rip out your cylinder packing every time you switch methods, you should establish a permanent type-high (.918") standard on your cylinder. Here is how to manage both setups seamlessly: To prevent having to rip out your cylinder packing every time you switch methods, you should establish a permanent type-high (.918") standard on your cylinder. Here is how to manage both setups seamlessly:
  
-==== 1. The Fixed Cylinder Packing Setup ====+==== The Fixed Cylinder Packing Setup ====
  
 Pack your cylinder exactly to .052 inches (your .050" undercut + .002" squeeze). Use a hard packing recipe to accommodate both mediums beautifully: Pack your cylinder exactly to .052 inches (your .050" undercut + .002" squeeze). Use a hard packing recipe to accommodate both mediums beautifully:
Line 61: Line 65:
 Once this is clamped tight, leave it alone. Do not change it when swapping forms. Once this is clamped tight, leave it alone. Do not change it when swapping forms.
  
-==== 2. Form Adjustments in the Press Bed ====+==== Form Adjustments in the Press Bed ====
  
 Because your press packing is now locked into a strict .918" type-high expectation, you will manage your two different forms directly on the bed: Because your press packing is now locked into a strict .918" type-high expectation, you will manage your two different forms directly on the bed:
Line 72: Line 76:
  
  
-* Watch out for "Galley-High" Bases: Some Boxcar or Boxcar-style bases are machined to .903" (for KF95 plates) or .890" (for KF152 plates) designed specifically for Vanderbook presses with the galley plate removed. If you put one of these onto your Poco bed with the galley plate still in, you will smash your plates, your type, and your packing. +  * Watch out for "Galley-High" Bases: Some Boxcar or Boxcar-style bases are machined to .903" (for KF95 plates) or .890" (for KF152 plates) designed specifically for Vanderbook presses with the galley plate removed. If you put one of these onto your Poco bed with the galley plate still in, you will smash your plates, your type, and your packing. 
-* The Wood Type Factor: Hard packing is great for photopolymer, but it can be unforgiving on antique wood type. If your wood type is bruised or uneven, do not change the whole packing structure. Simply slide one or two thin sheets of soft tissue or newsprint directly under the top tympan sheet to give the wood type a tiny bit of cushion, then slide them right back out when you return to photopolymer.+  * The Wood Type Factor: Hard packing is great for photopolymer, but it can be unforgiving on antique wood type. If your wood type is bruised or uneven, do not change the whole packing structure. Simply slide one or two thin sheets of soft tissue or newsprint directly under the top tympan sheet to give the wood type a tiny bit of cushion, then slide them right back out when you return to photopolymer.
  
 Using a KF95 photopolymer plate on a custom base built to Standard Boxcar Base dimensions is an ideal setup. The math for your Hacker Poco press lines up perfectly with a universal type-high (.918") bed workflow. [1, 2]  Using a KF95 photopolymer plate on a custom base built to Standard Boxcar Base dimensions is an ideal setup. The math for your Hacker Poco press lines up perfectly with a universal type-high (.918") bed workflow. [1, 2] 
Line 94: Line 98:
 Because both setups resolve to .918", your cylinder packing can remain completely locked into your calculated .052" thickness setup. You will not need to alter your packing formula when shifting between antique type and modern photopolymer. Because both setups resolve to .918", your cylinder packing can remain completely locked into your calculated .052" thickness setup. You will not need to alter your packing formula when shifting between antique type and modern photopolymer.
  
-[1] [https://www.boxcarpress.com](https://www.boxcarpress.com/shop/standard-boxcar-base/) +  - [[https://www.boxcarpress.com/shop/standard-boxcar-base/]] 
-[2] [https://www.facebook.com](https://www.facebook.com/groups/letterpressprinting/posts/10159642842476779/) +  - [[https://www.facebook.com/groups/letterpressprinting/posts/10159642842476779/]] 
-[3] [https://www.boxcarpress.com](https://www.boxcarpress.com/letterpress-base-and-plates/) +  - [[https://www.boxcarpress.com](https://www.boxcarpress.com/letterpress-base-and-plates/]] 
-[4] [https://www.hubbubpaperco.com](https://www.hubbubpaperco.com/photopolymer-plates) +  - [[https://www.hubbubpaperco.com](https://www.hubbubpaperco.com/photopolymer-plates]] 
-[5] [https://www.youtube.com](https://www.youtube.com/watch?v=5u6G0UI10C4) +  - [[https://www.youtube.com](https://www.youtube.com/watch?v=5u6G0UI10C4]] 
-[6] [https://www.briarpress.org](http://www.briarpress.org/21243) +  - [[https://www.briarpress.org](http://www.briarpress.org/21243]] 
-[7] [https://www.boxcarpress.com](https://www.boxcarpress.com/shop/kf-95-letterpress-plates/)+  - [[https://www.boxcarpress.com](https://www.boxcarpress.com/shop/kf-95-letterpress-plates/]]
  
  
  
presses/poco.1790281031.txt.gz · Last modified: by mbpdocs_admin

Donate Powered by PHP Valid HTML5 Valid CSS Driven by DokuWiki