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FR / Cambrian Tender - P4 Chassis 3d printed

Not a Photo

White Strong & Flexible
FR / Cambrian Tender - P4 Chassis 3d printed
FR / Cambrian Tender - P4 Chassis 3d printed

Not a Photo

FR / Cambrian Tender - P4 Chassis

  Will arrive by Dec 23 in this material. Details
  • 3D printed in White Strong & Flexible: White nylon plastic with a matte finish and slight grainy feel.
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  • This product is intended for mature audiences.
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Product Description

Important note:  At the front of the tender frames there is a cut out and on the insides are the two areas sprued on as an optional filler.  If building the Cambrian tender these holes need to remain, if building the Furness tender then these need glueing in the frames so as to make the frames flush.  A smearing of filler will hide the join line.


Important note 2:   Like with the locomotive chassis different scource material gives a different story on wheelbase and wheel size.

Some say the wheelbase is

6'0" + 6'0"

others say

6'3" + 6'3"

yet others say

6'6" + 6'6"


For the wheels they apparently differ between

3'10" and



Either some research material is in error or the real things varied throughout their service.


This model has been designed with a 6'3" + 6'3" wheelbase and 3'6" diameter wheels.  For more information please look here...


or here...



A future model with a different specification may be made but it is currently too early to say.


The chassis is essentially complete, all you need are 3 sets of 3' 6" wheels (GI4842 (Gibson) Bogie / Tender 3ft 6in were used in testing on the FR Tender) and if you choose 6x 2mm brass 'straw hat' bearing cups.  Test builds indicate the wheels roll nicely with or without bearing cups. You may need to ream the axles holes out slightly, If you are using the bearings then the holes will need definetly need reaming out to accomodate them.  


Fit one wheel to the end of a flush axle and thread a spacing washer or two on, then thread it through the bearing carrier (or bearing), then add a spacing washer or two then the wheel to the other side and gauge it with a back to back gauge, do this to all 3. 


The chassis fits to the body by slotting the front into the body at an angle and raising the rear until level, the hole in the chassis will line up with the hole in the body.  Once done it is fitted with a screw or bolt, the model materials allow the screw or bolt to self tap and a retaining nut is not needed even after repeated removal and refitting, however space is reachable on the inside to add a nut if you prefer. 


As an alternative you can cut the bearing carriers off completely but retain the brake gear, then use Pinpoint bearings instead for the wheels and seat the pin points into the indented cups on the inside of the frame, just lightly spring the model to fit them. 


As a 3rd alternative if you are not using the optional chassis at all then you can use Pinpoint bearings as above but If using this method you will have to obtain/make your own brake gear.


Hand rails are made by using 0.45mm rod and hand rail pillars.  Drill holes and either glue or melt them in as needed.


Add the buffers, your choice of couplings, brake pipe and tender connector and you're ready to roll. 


For wheels, axles, crankpins etc
Alan Gibson is a great resource


...as is Markits

For Motors and Gearboxes, High Level are recommended.


For crank pins, hand rail rod/wire and pillars, washers, bearings and other small sundry items Mainly Trains is a good website to visit.

But of course you can use whatever suits your needs and preference best,
the above has been typed out to hopefully aid you should you be new to kit building.  The advantage of these 3D printed kits is 90% of the work is done for you.

What's in the Box
FR / Cambrian Tender - P4 Chassis
White Strong & Flexible
8.0 cm
1.4 cm
2.2 cm

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