Tuesday, June 18, 2019

Getting ready to travel.

By early October I will be in Devonport Tasmania with the Böltonwagen.

17 June Service complete at

Orrong Truck Services

2 Ferguson Road, Kewdale WA 6105

The gas man started Tuesday and got 1/2 complete - will resume 20th.

Can't get a hold of the battery man. Only having 12 volts won't be a showstopper however.

Spent a few hundred bucks at the Vietnamese Grocery store stocking up on packets of Crunchy Little Skulls. Wouldn't want to run out in the middle of the Nullabor.

Might be able to organise another 12 volts of battery capacity.

Will be leaving Perth approx 20 June.

Saturday, May 11, 2019

Electrical System Redux.

*Build a backup Rasberry Pi controller relay board.
*Source 12 x Second Hand ex Telstra 2 volt cells. 70 x 180 x 350. These will fit nicely.

UXL220-2FR Spec Sheet

These are a premium UPS battery with a design life of 15 years. They are AGM design apparently but are no where designated as "deep cycle". They have a maximum charge rate of .1C and , possibly more diagnostic , are able to be mounted either vertically or horizontally. This must mean that the electrolyte has a tenous role in the duty cycle. The batteries are available at 60 bucks for a 500 odd dollar list price battery apparently ex Telco, in the original packaging and with no witness marks on the terminals.

At first blush this suggests these batteries must be over provisioned and nursed in an Off Grid role.

The brutal question could be ; these batteries will last 15 years of doing nothing in a Godfather UPS role. However if you were to make them do something Off Grid wise and the battery was being pulled off the Manufacturer Spec Sheet (have not yet found and cycling vs life contention let alone specs). You might make inroads into the design life but the cost benefit puts them in front of purpose batteries such as the Century C105 type industrial deep cycle purchased Retail and new.

At very least this suggests some "hard stops". My first limit  would be charge rate. Anecdotally I have heard of systems comprising this product just collapsing early in service. I can only conclude overcharging would be the failure mechanism.

My next guess is ; treated gently on depth of discharge. Clearly an Off Grid battery that cannot withstand any meaningfull depth of cycle is no battery at all.

Is it better to buy twice as many as you need and treat the aggregate more gently in an "Off the Reservation " role? Dont rightly know.

The charge controller is the epsolar tracer 4210A.

*Rewire the lights and put in some more fittings.

Tuesday, February 26, 2019

Böltonwagen Specs

CVM 9.0 Tonne
Tare ??? Find a Weighbridge. 

CGM 14.0 Tonne
Model : N - 1630
Chassis CMA 86H 00138
Date 1 1984.
International Harvester AKA Nissan UD Acco.

Monday, February 25, 2019

Böltonwagen Tour - Feb

Going from the stationary cluttered building site to the more mobile, more comfortable and far more aesthetically uplifting. Plenty of construction and invention yet to be undertaken but this will be more in the nature of embellishment than survival. 


Every library has a shelf of books to be sold off for a cuppla bucks. Making up a collage is fun and the results quite pleasant. I find Aquadhere applied neat on the back. Sand the spikes of wood off the ply wall then dampen with a sponge. Stick the cutout in place then smear a  coat of Aquadhere over the outside surface and squeegee with a wet sponge to change out blobs and bubbles. Less glue will leave a friable paper that peels away from the wall. 


Thursday, February 21, 2019

Bed Stowage Mechanism

The rollers on the "bottom". These stop the bed from moving longitudinally during motion.

Tuesday, February 19, 2019

R/C Simulators.

Just as whacking a tennis ball isn't supposed to be tennis - it is well worthwhile as a short interlude for relaxation and to help wire up one's reflexes for more articulate brain / hand coordination.

# 1 Multiflight - good graphics and pleasant to operate. Windows.

#2 PicaSim - Medium Graphics and has a variety of senarios. Windows.

#3 CRRCSim - crude graphics and GUI. Quite pleasant to use. Linux.

All of them require a bit of fiddling to setup. This is part of the familiarization process and becomes less frustrating every time.