Massoth DC pulsed steam generator

maxi-model

maxi-model

UK/US/ROW steam narrow gauge railways 1:1
27 Oct 2009
4,436
80
Bucks/Oxon/Northants area
Looking for some feedback on Massoth's DC pulsed steam genrator. Looking to fit it to an all metal 1:20.3 (Fn3) scale Accucraft K-27 that is battery powered. Loads of space in the smokebox and boiler. Will it be suitable and are they any good ? Yes, I know they are not cheap but if I am going to fit one I'd like it to look the part. I understand, looking at the website, they can be fitted up to pump out smoke around the cylinders too. Max
 
royale

royale

G scale and driving my Royale Sabre kit car
26 Oct 2009
1,550
2
Long Eaton
I have one fitted in my analog USA Trains all metal Hudson with Phoenix sound and must say that I am somewhat disappointed in the results. The smoke hardly pulses out at all at even very slow speeds, but comes out in a more or less continuous flow. The unit makes plenty of smoke, but the pulsing is not obvious, which is not good for an expensive unit.
 
D

dennishodge

Registered
21 Feb 2018
70
3
47
Bellevue, WA, USA
I think the ESU units have better smoke.

Here's a massoth unit that echo's the performance Royal states
Who is the OEM for the current Märklin LGB mfx/DCC locos with pulsed smoke and cylinder steam? Does anyone know or recognize the shape from the parts diagram? XD
 
D

dennishodge

Registered
21 Feb 2018
70
3
47
Bellevue, WA, USA
Who is the OEM for the current Märklin LGB mfx/DCC locos with pulsed smoke and cylinder steam? Does anyone know or recognize the shape from the parts diagram? XD
Here’s the diagram:

121077_9e6fb8eaf09b0715026b264250793b70.jpeg
 
D

dennishodge

Registered
21 Feb 2018
70
3
47
Bellevue, WA, USA
Here’s a link to the performance pulsed as a loco slows to a stop:

 
maxi-model

maxi-model

UK/US/ROW steam narrow gauge railways 1:1
27 Oct 2009
4,436
80
Bucks/Oxon/Northants area
Product No.: 8413101 - looks like the diagrams posted and is supposed to be the DC version. It's the one I'm looking at as it's the one that pops up when I Google "Massoth Pulsed Smoke". Only interested in DC operation. Downloaded the manual from the Massoth site for the DC version and it seemed to jabber on about functions for the DCC version - not promising given my aversion for these sorts of things :giggle: If anybody knows any others that will do the job with a nice volume of "smoke" the I would be interested to know. Max
 
PhilP

PhilP

G Scale, 7/8th's, Electronics
5 Jun 2013
22,782
274
Tamworth, Staffs.
The problem trying to do this with DC, is when you are stopped, there is no voltage present for the element, or the fan. So you will always have to make compromises somewhere..
 
muns

muns

Moderator
Staff member
GSC Moderator
The Analogue version is realy a Digital version with a different heating element and slightly different settings.
 
LGB333

LGB333

Active Member
Folks - I don't have any experience installing the Massoth DC version Pulsed Smoke Unit into a DC/Analog locomotive. But like most DCC Sound Decoders, they are primarily designed to work on DCC, and less effectively powered by DC. And these Massoth Smoke Units are decoders with their array of CVs for adjustment. The two DCC models of the Massoth Pulsed Smoke Unit are excellent. They put out so much smoke it can possibly asphyxiate you! I previously posted a couple months ago in the Steam DCC Forum Topic some confusion I had wiring my first install into the Massoth XLS Sound Decoder I was installing for someone who bought the LGB Uintah Mallet Steamer from me, but with some help from my Massoth supplier in Germany, got it all worked out. These units do not have their own built-in pulse enablement, you need a DCC decoder to drive the pulses. Again, I've not tried installing the DC version into a DC/Analog locomotive so I can't give any comments on it. The rounded boiler DCC unit I installed into the LGB Uintah locomotive works like a champ. I've posted a demo the Uintah pulsing away on my Website's Homepage if anyone wants to see it work.

I also installed the other DCC unit into an LGB Uintah caboose for the same customer. That one is set to "Diesel" mode since no pulsing is needed for a caboose's interior stove. Again, that one can also smoke you out of a small room such as my workshop! The only issue I found with it, which I'm sure applies to all three of the Massoth smokers, is that the exhaust tube must be large enough to ensure full flow of the smoke, otherwise it can back up in the heat elements and cause the smoker to stop for overheating. I found that out from the original smaller-designed plastic tube I had connected to the caboose smoke stack. Once I replace the tube and smoke stack with a larger diameter parts, it flows smoke like a champ! I will post a photo here of the connector I devised to the caboose smoke stack using half a piece of plastic plumbing water line connector.

Questions: Fire away!
121135_ae861df522989583ab2beabc62783193.png
 
Last edited:
Greg Elmassian

Greg Elmassian

Registered
8 Mar 2014
2,666
120
San Diego
www.elmassian.com
To the OP and the topic:

The DC versions will normally suffer from poor smoke at low track voltages, this is why many systems use a 5 volt heating element and a regulator, so the heater can run at full output at about 7 volts on the track and above.

I think these units, while there is a DC version, will have a higher voltage heating element and it's tough to get good smoke at lower DC voltages, and you often watch this more closely when the loco is first moving, the "worst" time for getting power...

So, I would look more for a unit with a 5 volt heating element.

Greg
 
maxi-model

maxi-model

UK/US/ROW steam narrow gauge railways 1:1
27 Oct 2009
4,436
80
Bucks/Oxon/Northants area
I get the issue with smoke production at start up with a DC operated unit rather than DCC, that can make use of the constant voltage in the track to maintain operation. The pulsed bit is not essential but prodigious amounts of smoke is. Any other product out there to do the job in a DC environment ? I use a 10 mm Seuthe with my 14.2v (max) battery powered L&B Manning Wardell but that would be of limited use in the loco I am using here. Max
 
Greg Elmassian

Greg Elmassian

Registered
8 Mar 2014
2,666
120
San Diego
www.elmassian.com
If the priority was lots of smoke at any cost, I would get a Harbor Models unit (in the US) and then a boost type DC to DC inverter/regulator to provide a constant 12v.

This video is of their smaller older unit, the newer one makes more smoke:

Otherwise, you will have to experiment which model gives you the most smoke, but the key will be a DC to DC inverter/regulator to provide full voltage at all times.

Now of course you can trigger the chuff with whatever you decide, reed and magnet, hall effect, etc. but you will be stuck with full speed smoke at slow speeds... but maybe that is ok.

If you are completely DC with no remote controls, then maybe a switch to turn off the voltage or lower it... you can buy these buck/boost regulators very cheaply as outlined in several other threads.

Greg
 
Last edited:
maxi-model

maxi-model

UK/US/ROW steam narrow gauge railways 1:1
27 Oct 2009
4,436
80
Bucks/Oxon/Northants area
Thanks Greg. There are similar products available in the UK - guess who has an battery/rc "Clyde Puffer" kit waiting to go onto the slipway. I'll keep the inverter/regulator in mind.

The other issue with this smoke generator installation on my K-27 might be that the ESC installed is only rated for upto 30 watts cotinuous power output and we are pushing it even without any accessories. The supplier had not realised the actual size and weight of the loco, when the ESC was ordered and the fact it has 3 x 6v incandecent lights up front till he saw it in the flesh after the installation was completed. The supplier has offered to replace FOC (I don't think I misheard) with the 100 watt version if the supplied ESC "blows up". Max
 
Greg Elmassian

Greg Elmassian

Registered
8 Mar 2014
2,666
120
San Diego
www.elmassian.com
Are you trying to turn the generator on and off from the same esc that is driving the loco?

You also said DC in your post, but you really meant R/C, having the ability to control the smoke unit makes a big difference in (at least my) recommendations.

So:

1. Bachmann K27
2. battery or track power?
3. 30 watt esc
4. stock lighting
5. some form of high current smoke unit
6 what kind of remote control do you have?

Answers to the stuff in red will help...


Greg
 
maxi-model

maxi-model

UK/US/ROW steam narrow gauge railways 1:1
27 Oct 2009
4,436
80
Bucks/Oxon/Northants area
Are you trying to turn the generator on and off from the same esc that is driving the loco?

You also said DC in your post, but you really meant R/C, having the ability to control the smoke unit makes a big difference in (at least my) recommendations.

So:

1. Bachmann K27 - No Accucraft
2. battery or track power? - Battery 16.8v
3. 30 watt esc - At present
4. stock lighting Yes - For Accucraft Yes - incandescent 6v (via voltage regulator)
5. some form of high current smoke unit - if you say so
6 what kind of remote control do you have? Fosworks Omni 2 Tx + Rx2 2.4 Ghz

Answers to the stuff in red will help...


Greg