Archive for the "reprap" Category

Reprap: Sexy z-drive

I’ve been using this #10-24 (~5mm) leadscrew for almost a month now, and it’s been working flawlessly. The coupling is just zip ties on vinyl tubing. No slippage at all due to the reduced friction of the tiny nut vs an 8mm nut. Thin leadscrew + flexible coupling = no leadscrew wobble (aka z-wobble) + [...]

Marlin Tuning

To get the most out of Marlin, here are a few simple tweaks. 1. EEPROM Settings By default, Marlin forgets any configuration changes you make via the Mxxx G-codes whenever you reset or power cycle your controller. If you want to remember the settings, so you don’t have to set them every time you power [...]

Reprap: Experiments in Resolution/JHead Modding

I’ve been designing a bot that attempts to get the best possible performance out of a Printrbot-style open frame design.  The design has a long way to go in terms of refinements, but I’ve started testing out the basic concept.  To address the Printrbot’s main shortcoming, the y-axis sits on a very wide base, and [...]

Printrbot Tweaking

I’ve had to do a lot of experimenting and tweaking in order to get decent prints out of my Printrbot (NOTE:  Just to be clear, the Printrbot I built was not from a kit from Brook Drumm.  I self sourced the parts, including the printed bits, which were given to me by a friend.  You [...]

Reprap: Print Replacement Parts for Household Items

Looking for something useful to do with your Reprap?  I used mine to fix a couple of nagging issues around the house. First, one of the rubber feet on my Vitamix blender had gone AWOL a few years ago.  It actually balanced fine on 3 feet, but after I got my Printrbot working, it was [...]

Case Protoype for LeafCAN

I’ve been having a lot of issues tweaking my latest Reprap design, so I haven’t been able print a case for my LeafCAN SOC meter.  Late last week, the printer was stabilizing, so I took a break to whip up something in OpenSCAD.  It’s just a basic box, which I printed in natural ABS.  I don’t like [...]

Reprap: Don’t Throw Away Your Cracked/Weak Parts – Fix Them!

Sometimes, my layers don’t stick nicely, or I print a part that’s too thin, and the part cracks between layers when I try to use it: There’s no need to throw them away and reprint them.  Just use a q-Tip soaked in acetone and paint it liberally.  Junk ABS bits dissolved in acetone works even [...]

Did Termites Eat My Print?

I was printing out the x-end-motor for a new Reprap I’m designing yesterday. The bottom was printing beautifully: I baby sat it for the first 2:15, and went to bed during the remaining 15 minutes of the print.  I woke up the next morning to find this: At first, I thought my hot end had [...]

Raspberry Pi Case

I was not fast enough to get an order in for a Raspberry Pi on launch day.  Fortunately, a kind friend of mine thought of me, and bought an extra one for me.  I received it yesterday, and printed this case: The case I made is a copy of HansH’s excellent Raspberry Pi case, modified [...]

Marlin for Printrboard Updated

I just synced my Marlin branch for Printrboard with the latest code from ErikZalm’s branch. I noticed that there were a lot of changes in the planner, temperature control, etc.  Hopefully, it will be an improvement, rather than breaking anything.  Please report here or on github if you find any anolmalies with the new code. [...]