Machine Shop Services
Paragon Machine Works is a full service machine shop dedicated to the production of high-quality, precision machined products. Machine Shop Services
Paragon Machine Works Newsletter
May, 2012

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Spring at Paragon Machine Works
We've had a very busy Spring at Paragon Machine Works. Our goal is to meet the demand for our current stock, while creating new and innovative products. It can be a difficult balance to attain with a finite number of machines and staff, but we try our hardest. In an effort to increase our production abilities, we've sold one of our older mills and have replaced it with two gently used Kitamura mills. We're very excited about this transition but it will likely decrease our mill production temporarily while we get them up and running.
As always, we appreciate your support and flexibility.
New Products
Stainless Steel Headtubes
Our new stainless steel headtubes range in size from 105 to 190 mm. They accept all 44 mm headset cups and can use forks with 1 1/8" and 1 1/2" steerers, or 1 1/8" x 1 1/2" tapered steerers. Each headtube consists of a center piece made from seamed 304 stainless steel, and two end rings made from 17/4 stainless steel. The three pieces, once assembled, make up the total length with a tolerance of +.25 mm (.010") to .5 mm (.020")/ - 0.0; they may be shortened by the fame builder to accommodate smaller sizes. The center section is 1 7/8" OD x .49" wall tube. The end rings are 5 mm in height x 50 mm OD and must be welded in place by the builder. The bearing bores are supplied .5 mm (.020") undersize to allow for post-weld reaming, and must be finished to size by the frame builder.
Update on 142 mm x 12 mm Inserts for Adjustable Rocker Dropouts
We are still in the process of manufacturing our inserts for our titanium adjustable Rocker dropouts that accept all 142 mm x 12 mm rear hubs. These inserts will be compatible with the Shimano XTR M988 (Shimano P/N ISMAX75A) and DT Swiss 142 x 12 skewer with M12 x 1 thread (DT Swiss P/N HWQXXXOOS2961S).
Post Style Caliper Mount
Our newest caliper mount, BK0016, is machined from 6/4 titanium and is pre-mitered to fit our 1 1/2" round, rear dropouts with 142 mm x 12 mm spacing. It will fit most seat stay dimameters and angles, but may not be applicable in some cases. It measures 15.7 mm thick (.618") at the caliper mount and 4.5 mm thick (.177") at the dropout, with 74.2 mm hole-to-hole spacing. It is supplied with two 6 mm barrel nuts.
Black Anodized Inserts

Stainless Steel Flanged Sliding Dropouts
We are currently out of our standard 17/4 stainless steel flanged sliding dropouts. An excellent alternative is our clearance stainless steel flanged sliding dropouts, CL1024. They are perfectly functional but have a minor imperfection near the seatstay junction on the upper part of the dropout (shown in the photo on the product page). They are discounted $50 from the regular price.
Drawings for Adjustable Dropouts
We are in the process of making drawings for all of our adjustable dropout assemblies and will be posting a number of new ones soon. Look for them under the "Drawing" tab of individual product information pages.

Backroad Fest
The next event where we'll be exhibiting is the Backroad Fest held at Lagunitas Brewery in Petaluma, CA on May 19th, 2012. It is being held in conjunction with the Sonoma County Backroad Challenge, an organized and supported ride that offers three different routes for different levels of riders. All rides start in Petaluma, wind their way through beautiful Sonoma County, end at Lagunitas Brewery (that makes amazing beer, by the way) and benefit the Rotary Club of Petaluma Sunrise. We'll be at the Backroad Fest at noon and hope that you'll join us for this fun event.
Dropout Fabrication
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